GPS Accuracy-breakdown

From Fellrnr.com, Running tips
Revision as of 15:47, 11 January 2015 by User:Fellrnr (User talk:Fellrnr | contribs)

Jump to: navigation, search

1 Devices then Condition

Device Condition Count Trueness
(Average Distance Error) 		Standard Deviation
(From mean) 		Standard Deviation
(From true) 		Pace Error (95%) Distance Error
(from 9:00 min/mile) (from 5:30 min/Km) (20 miles) (30 Km)
Footpod (calibrated) Normal 3143 0.09% (5.0 Ft/Mile, 0.9 m/Km) 2.35% (124.1 Ft/Mile, 23.5 m/Km) 2.35% (124.2 Ft/Mile, 23.5 m/Km) 0:25 0:16 0.02 0.03
Under Bridge 207 1.12% (59.4 Ft/Mile, 11.2 m/Km) 2.16% (114.1 Ft/Mile, 21.6 m/Km) 2.44% (128.7 Ft/Mile, 24.4 m/Km) 0:26 0:16 0.22 0.34
Post Bridge 176 0.32% (16.7 Ft/Mile, 3.2 m/Km) 1.99% (104.8 Ft/Mile, 19.9 m/Km) 2.01% (106.2 Ft/Mile, 20.1 m/Km) 0:22 0:13 0.06 0.09
Turn Around 198 0.43% (22.7 Ft/Mile, 4.3 m/Km) 2.31% (122.2 Ft/Mile, 23.1 m/Km) 2.35% (124.3 Ft/Mile, 23.5 m/Km) 0:25 0:16 0.09 0.13
Straight 671 0.30% (15.9 Ft/Mile, 3.0 m/Km) 2.35% (124.1 Ft/Mile, 23.5 m/Km) 2.37% (125.1 Ft/Mile, 23.7 m/Km) 0:26 0:16 0.06 0.09
Power Line 487 0.16% (8.7 Ft/Mile, 1.6 m/Km) 2.33% (123.3 Ft/Mile, 23.3 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 0:25 0:15 0.03 0.05
Mixed 3724 0.13% (7.1 Ft/Mile, 1.3 m/Km) 2.34% (123.4 Ft/Mile, 23.4 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 0:25 0:15 0.03 0.04
Polar V800 Normal 903 0.12% (6.1 Ft/Mile, 1.2 m/Km) 1.94% (102.3 Ft/Mile, 19.4 m/Km) 1.94% (102.5 Ft/Mile, 19.4 m/Km) 0:21 0:13 0.02 0.03
Under Bridge 61 2.50% (132.0 Ft/Mile, 25.0 m/Km) 3.57% (188.5 Ft/Mile, 35.7 m/Km) 4.37% (230.7 Ft/Mile, 43.7 m/Km) 0:47 0:29 0.50 0.75
Post Bridge 61 0.57% (30.2 Ft/Mile, 5.7 m/Km) 2.60% (137.4 Ft/Mile, 26.0 m/Km) 2.66% (140.7 Ft/Mile, 26.6 m/Km) 0:29 0:18 0.11 0.17
Turn Around 70 3.61% (190.4 Ft/Mile, 36.1 m/Km) 2.72% (143.8 Ft/Mile, 27.2 m/Km) 4.54% (239.7 Ft/Mile, 45.4 m/Km) 0:49 0:30 0.72 1.08
Straight 189 0.55% (28.8 Ft/Mile, 5.5 m/Km) 1.39% (73.3 Ft/Mile, 13.9 m/Km) 1.49% (78.8 Ft/Mile, 14.9 m/Km) 0:16 0:10 0.11 0.16
Power Line 126 0.80% (42.4 Ft/Mile, 8.0 m/Km) 1.98% (104.5 Ft/Mile, 19.8 m/Km) 2.14% (112.9 Ft/Mile, 21.4 m/Km) 0:23 0:14 0.16 0.24
Mixed 1095 0.22% (11.5 Ft/Mile, 2.2 m/Km) 2.41% (127.1 Ft/Mile, 24.1 m/Km) 2.42% (127.6 Ft/Mile, 24.2 m/Km) 0:26 0:16 0.04 0.07
Garmin 205 Normal 920 0.46% (24.2 Ft/Mile, 4.6 m/Km) 2.56% (135.4 Ft/Mile, 25.6 m/Km) 2.61% (137.6 Ft/Mile, 26.1 m/Km) 0:28 0:17 0.09 0.14
Under Bridge 66 2.74% (144.7 Ft/Mile, 27.4 m/Km) 6.98% (368.8 Ft/Mile, 69.8 m/Km) 7.51% (396.6 Ft/Mile, 75.1 m/Km) 1:21 0:50 0.55 0.82
Post Bridge 66 1.21% (64.0 Ft/Mile, 12.1 m/Km) 2.37% (125.0 Ft/Mile, 23.7 m/Km) 2.66% (140.7 Ft/Mile, 26.6 m/Km) 0:29 0:18 0.24 0.36
Turn Around 73 2.87% (151.3 Ft/Mile, 28.7 m/Km) 2.34% (123.3 Ft/Mile, 23.4 m/Km) 3.71% (196.0 Ft/Mile, 37.1 m/Km) 0:40 0:25 0.57 0.86
Straight 198 0.35% (18.4 Ft/Mile, 3.5 m/Km) 1.63% (86.2 Ft/Mile, 16.3 m/Km) 1.67% (88.2 Ft/Mile, 16.7 m/Km) 0:18 0:11 0.07 0.10
Power Line 127 0.52% (27.3 Ft/Mile, 5.2 m/Km) 2.30% (121.3 Ft/Mile, 23.0 m/Km) 2.36% (124.4 Ft/Mile, 23.6 m/Km) 0:25 0:16 0.10 0.16
Mixed 1125 0.47% (24.9 Ft/Mile, 4.7 m/Km) 3.14% (166.0 Ft/Mile, 31.4 m/Km) 3.18% (167.9 Ft/Mile, 31.8 m/Km) 0:34 0:21 0.09 0.14
Garmin 910XT with Footpod Normal 600 0.95% (50.0 Ft/Mile, 9.5 m/Km) 2.76% (145.5 Ft/Mile, 27.6 m/Km) 2.91% (153.9 Ft/Mile, 29.1 m/Km) 0:31 0:19 0.19 0.28
Under Bridge 42 0.16% (8.4 Ft/Mile, 1.6 m/Km) 3.16% (166.8 Ft/Mile, 31.6 m/Km) 3.16% (167.1 Ft/Mile, 31.6 m/Km) 0:34 0:21 0.03 0.05
Post Bridge 40 3.81% (201.2 Ft/Mile, 38.1 m/Km) 2.01% (105.9 Ft/Mile, 20.1 m/Km) 4.35% (229.7 Ft/Mile, 43.5 m/Km) 0:47 0:29 0.76 1.14
Turn Around 43 4.73% (249.8 Ft/Mile, 47.3 m/Km) 2.55% (134.4 Ft/Mile, 25.5 m/Km) 5.42% (286.2 Ft/Mile, 54.2 m/Km) 0:59 0:36 0.95 1.42
Straight 122 0.25% (13.0 Ft/Mile, 2.5 m/Km) 1.74% (91.8 Ft/Mile, 17.4 m/Km) 1.76% (92.8 Ft/Mile, 17.6 m/Km) 0:19 0:12 0.05 0.07
Power Line 90 1.58% (83.5 Ft/Mile, 15.8 m/Km) 2.17% (114.4 Ft/Mile, 21.7 m/Km) 2.69% (141.9 Ft/Mile, 26.9 m/Km) 0:29 0:18 0.32 0.47
Mixed 725 1.28% (67.8 Ft/Mile, 12.8 m/Km) 2.94% (155.4 Ft/Mile, 29.4 m/Km) 3.21% (169.6 Ft/Mile, 32.1 m/Km) 0:35 0:21 0.26 0.39
iPhone 4s Normal 781 1.10% (58.2 Ft/Mile, 11.0 m/Km) 2.88% (152.1 Ft/Mile, 28.8 m/Km) 3.08% (162.9 Ft/Mile, 30.8 m/Km) 0:33 0:20 0.22 0.33
Under Bridge 59 2.49% (131.5 Ft/Mile, 24.9 m/Km) 3.33% (175.8 Ft/Mile, 33.3 m/Km) 4.17% (220.2 Ft/Mile, 41.7 m/Km) 0:45 0:28 0.50 0.75
Post Bridge 54 0.21% (11.0 Ft/Mile, 2.1 m/Km) 2.60% (137.1 Ft/Mile, 26.0 m/Km) 2.61% (137.6 Ft/Mile, 26.1 m/Km) 0:28 0:17 0.04 0.06
Turn Around 62 2.27% (119.7 Ft/Mile, 22.7 m/Km) 4.00% (211.0 Ft/Mile, 40.0 m/Km) 4.60% (243.1 Ft/Mile, 46.0 m/Km) 0:50 0:30 0.45 0.68
Straight 166 1.87% (98.8 Ft/Mile, 18.7 m/Km) 2.23% (117.9 Ft/Mile, 22.3 m/Km) 2.92% (154.0 Ft/Mile, 29.2 m/Km) 0:31 0:19 0.37 0.56
Power Line 110 1.35% (71.1 Ft/Mile, 13.5 m/Km) 2.52% (133.0 Ft/Mile, 25.2 m/Km) 2.86% (150.9 Ft/Mile, 28.6 m/Km) 0:31 0:19 0.27 0.40
Mixed 956 0.90% (47.3 Ft/Mile, 9.0 m/Km) 3.12% (164.9 Ft/Mile, 31.2 m/Km) 3.25% (171.6 Ft/Mile, 32.5 m/Km) 0:35 0:21 0.18 0.27
Garmin 310XT with Footpod Normal 3143 0.27% (14.2 Ft/Mile, 2.7 m/Km) 3.12% (164.9 Ft/Mile, 31.2 m/Km) 3.13% (165.5 Ft/Mile, 31.3 m/Km) 0:34 0:21 0.05 0.08
Under Bridge 207 1.56% (82.2 Ft/Mile, 15.6 m/Km) 3.47% (183.1 Ft/Mile, 34.7 m/Km) 3.80% (200.8 Ft/Mile, 38.0 m/Km) 0:41 0:25 0.31 0.47
Post Bridge 176 2.48% (131.0 Ft/Mile, 24.8 m/Km) 3.32% (175.3 Ft/Mile, 33.2 m/Km) 4.15% (219.1 Ft/Mile, 41.5 m/Km) 0:45 0:27 0.50 0.74
Turn Around 198 3.64% (192.3 Ft/Mile, 36.4 m/Km) 3.54% (186.8 Ft/Mile, 35.4 m/Km) 5.08% (268.5 Ft/Mile, 50.8 m/Km) 0:55 0:34 0.73 1.09
Straight 671 0.97% (51.1 Ft/Mile, 9.7 m/Km) 2.29% (121.1 Ft/Mile, 22.9 m/Km) 2.49% (131.5 Ft/Mile, 24.9 m/Km) 0:27 0:16 0.19 0.29
Power Line 487 0.61% (32.3 Ft/Mile, 6.1 m/Km) 3.06% (161.5 Ft/Mile, 30.6 m/Km) 3.12% (164.7 Ft/Mile, 31.2 m/Km) 0:34 0:21 0.12 0.18
Mixed 3724 0.62% (33.0 Ft/Mile, 6.2 m/Km) 3.30% (174.1 Ft/Mile, 33.0 m/Km) 3.36% (177.2 Ft/Mile, 33.6 m/Km) 0:36 0:22 0.12 0.19
Garmin 610 Normal 1727 1.42% (75.0 Ft/Mile, 14.2 m/Km) 3.02% (159.5 Ft/Mile, 30.2 m/Km) 3.34% (176.2 Ft/Mile, 33.4 m/Km) 0:36 0:22 0.28 0.43
Under Bridge 112 0.90% (47.4 Ft/Mile, 9.0 m/Km) 2.80% (147.6 Ft/Mile, 28.0 m/Km) 2.94% (155.1 Ft/Mile, 29.4 m/Km) 0:32 0:19 0.18 0.27
Post Bridge 112 3.75% (197.8 Ft/Mile, 37.5 m/Km) 2.53% (133.5 Ft/Mile, 25.3 m/Km) 4.53% (239.4 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.75 1.12
Turn Around 134 5.32% (281.1 Ft/Mile, 53.2 m/Km) 2.49% (131.6 Ft/Mile, 24.9 m/Km) 5.90% (311.3 Ft/Mile, 59.0 m/Km) 1:04 0:39 1.06 1.60
Straight 375 0.56% (29.5 Ft/Mile, 5.6 m/Km) 2.03% (106.9 Ft/Mile, 20.3 m/Km) 2.10% (110.9 Ft/Mile, 21.0 m/Km) 0:23 0:14 0.11 0.17
Power Line 231 1.74% (92.0 Ft/Mile, 17.4 m/Km) 2.14% (112.8 Ft/Mile, 21.4 m/Km) 2.76% (145.7 Ft/Mile, 27.6 m/Km) 0:30 0:18 0.35 0.52
Mixed 2085 1.77% (93.3 Ft/Mile, 17.7 m/Km) 3.14% (165.9 Ft/Mile, 31.4 m/Km) 3.61% (190.3 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.35 0.53
Garmin 620 (3.30) Normal 950 1.47% (77.5 Ft/Mile, 14.7 m/Km) 3.09% (163.0 Ft/Mile, 30.9 m/Km) 3.42% (180.5 Ft/Mile, 34.2 m/Km) 0:37 0:23 0.29 0.44
Under Bridge 52 0.87% (45.7 Ft/Mile, 8.7 m/Km) 3.66% (193.2 Ft/Mile, 36.6 m/Km) 3.76% (198.6 Ft/Mile, 37.6 m/Km) 0:41 0:25 0.17 0.26
Post Bridge 52 3.85% (203.5 Ft/Mile, 38.5 m/Km) 3.06% (161.5 Ft/Mile, 30.6 m/Km) 4.95% (261.4 Ft/Mile, 49.5 m/Km) 0:53 0:33 0.77 1.16
Turn Around 76 4.60% (242.8 Ft/Mile, 46.0 m/Km) 3.59% (189.5 Ft/Mile, 35.9 m/Km) 5.86% (309.3 Ft/Mile, 58.6 m/Km) 1:03 0:39 0.92 1.38
Straight 231 0.17% (9.2 Ft/Mile, 1.7 m/Km) 2.30% (121.5 Ft/Mile, 23.0 m/Km) 2.31% (121.8 Ft/Mile, 23.1 m/Km) 0:25 0:15 0.03 0.05
Power Line 104 1.70% (89.7 Ft/Mile, 17.0 m/Km) 2.50% (132.1 Ft/Mile, 25.0 m/Km) 3.03% (159.9 Ft/Mile, 30.3 m/Km) 0:33 0:20 0.34 0.51
Mixed 1130 1.76% (92.9 Ft/Mile, 17.6 m/Km) 3.28% (173.1 Ft/Mile, 32.8 m/Km) 3.72% (196.5 Ft/Mile, 37.2 m/Km) 0:40 0:25 0.35 0.53
Garmin 920XT Normal 632 2.07% (109.5 Ft/Mile, 20.7 m/Km) 2.77% (146.4 Ft/Mile, 27.7 m/Km) 3.46% (182.9 Ft/Mile, 34.6 m/Km) 0:37 0:23 0.41 0.62
Under Bridge 37 1.14% (60.1 Ft/Mile, 11.4 m/Km) 2.43% (128.2 Ft/Mile, 24.3 m/Km) 2.69% (142.0 Ft/Mile, 26.9 m/Km) 0:29 0:18 0.23 0.34
Post Bridge 37 5.07% (267.7 Ft/Mile, 50.7 m/Km) 2.94% (155.0 Ft/Mile, 29.4 m/Km) 5.92% (312.6 Ft/Mile, 59.2 m/Km) 1:04 0:39 1.01 1.52
Turn Around 49 6.83% (360.9 Ft/Mile, 68.3 m/Km) 3.39% (178.8 Ft/Mile, 33.9 m/Km) 7.69% (406.1 Ft/Mile, 76.9 m/Km) 1:23 0:51 1.37 2.05
Straight 142 0.48% (25.6 Ft/Mile, 4.8 m/Km) 2.20% (116.3 Ft/Mile, 22.0 m/Km) 2.26% (119.1 Ft/Mile, 22.6 m/Km) 0:24 0:15 0.10 0.15
Power Line 76 2.69% (142.2 Ft/Mile, 26.9 m/Km) 2.44% (128.7 Ft/Mile, 24.4 m/Km) 3.64% (192.5 Ft/Mile, 36.4 m/Km) 0:39 0:24 0.54 0.81
Mixed 755 2.48% (131.2 Ft/Mile, 24.8 m/Km) 3.11% (164.0 Ft/Mile, 31.1 m/Km) 3.98% (210.1 Ft/Mile, 39.8 m/Km) 0:43 0:26 0.50 0.75
Garmin 310XT no Footpod Normal 1605 0.70% (36.9 Ft/Mile, 7.0 m/Km) 3.67% (194.0 Ft/Mile, 36.7 m/Km) 3.74% (197.4 Ft/Mile, 37.4 m/Km) 0:40 0:25 0.14 0.21
Under Bridge 110 0.89% (47.1 Ft/Mile, 8.9 m/Km) 4.18% (220.7 Ft/Mile, 41.8 m/Km) 4.27% (225.7 Ft/Mile, 42.7 m/Km) 0:46 0:28 0.18 0.27
Post Bridge 106 3.19% (168.6 Ft/Mile, 31.9 m/Km) 3.30% (174.3 Ft/Mile, 33.0 m/Km) 4.60% (243.1 Ft/Mile, 46.0 m/Km) 0:50 0:30 0.64 0.96
Turn Around 124 3.81% (201.1 Ft/Mile, 38.1 m/Km) 5.29% (279.5 Ft/Mile, 52.9 m/Km) 6.53% (344.8 Ft/Mile, 65.3 m/Km) 1:11 0:43 0.76 1.14
Straight 326 0.42% (22.2 Ft/Mile, 4.2 m/Km) 2.82% (149.1 Ft/Mile, 28.2 m/Km) 2.85% (150.7 Ft/Mile, 28.5 m/Km) 0:31 0:19 0.08 0.13
Power Line 229 1.23% (64.8 Ft/Mile, 12.3 m/Km) 3.20% (169.1 Ft/Mile, 32.0 m/Km) 3.43% (181.2 Ft/Mile, 34.3 m/Km) 0:37 0:23 0.25 0.37
Mixed 1945 0.94% (49.8 Ft/Mile, 9.4 m/Km) 3.94% (208.0 Ft/Mile, 39.4 m/Km) 4.05% (213.9 Ft/Mile, 40.5 m/Km) 0:44 0:27 0.19 0.28
Samsung Galaxy S3 Normal 701 0.85% (45.0 Ft/Mile, 8.5 m/Km) 3.69% (194.8 Ft/Mile, 36.9 m/Km) 3.79% (199.9 Ft/Mile, 37.9 m/Km) 0:41 0:25 0.17 0.26
Under Bridge 38 1.31% (69.0 Ft/Mile, 13.1 m/Km) 3.14% (165.6 Ft/Mile, 31.4 m/Km) 3.41% (179.8 Ft/Mile, 34.1 m/Km) 0:37 0:22 0.26 0.39
Post Bridge 36 3.87% (204.6 Ft/Mile, 38.7 m/Km) 3.26% (172.2 Ft/Mile, 32.6 m/Km) 5.11% (269.6 Ft/Mile, 51.1 m/Km) 0:55 0:34 0.77 1.16
Turn Around 57 6.66% (351.6 Ft/Mile, 66.6 m/Km) 3.73% (197.1 Ft/Mile, 37.3 m/Km) 7.69% (405.9 Ft/Mile, 76.9 m/Km) 1:23 0:51 1.33 2.00
Straight 179 0.63% (33.1 Ft/Mile, 6.3 m/Km) 2.56% (135.3 Ft/Mile, 25.6 m/Km) 2.64% (139.3 Ft/Mile, 26.4 m/Km) 0:28 0:17 0.13 0.19
Power Line 70 2.13% (112.5 Ft/Mile, 21.3 m/Km) 3.49% (184.1 Ft/Mile, 34.9 m/Km) 4.09% (216.2 Ft/Mile, 40.9 m/Km) 0:44 0:27 0.43 0.64
Mixed 832 1.28% (67.7 Ft/Mile, 12.8 m/Km) 4.00% (211.4 Ft/Mile, 40.0 m/Km) 4.20% (222.0 Ft/Mile, 42.0 m/Km) 0:45 0:28 0.26 0.38
Suunto Ambit2 R Normal 858 1.01% (53.5 Ft/Mile, 10.1 m/Km) 3.46% (182.9 Ft/Mile, 34.6 m/Km) 3.61% (190.5 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.20 0.30
Under Bridge 50 4.65% (245.7 Ft/Mile, 46.5 m/Km) 5.64% (297.6 Ft/Mile, 56.4 m/Km) 7.34% (387.5 Ft/Mile, 73.4 m/Km) 1:19 0:48 0.93 1.40
Post Bridge 49 2.14% (113.1 Ft/Mile, 21.4 m/Km) 2.70% (142.3 Ft/Mile, 27.0 m/Km) 3.46% (182.5 Ft/Mile, 34.6 m/Km) 0:37 0:23 0.43 0.64
Turn Around 68 6.50% (343.1 Ft/Mile, 65.0 m/Km) 4.24% (223.7 Ft/Mile, 42.4 m/Km) 7.80% (411.7 Ft/Mile, 78.0 m/Km) 1:24 0:51 1.30 1.95
Straight 200 0.71% (37.7 Ft/Mile, 7.1 m/Km) 2.49% (131.7 Ft/Mile, 24.9 m/Km) 2.59% (137.0 Ft/Mile, 25.9 m/Km) 0:28 0:17 0.14 0.21
Power Line 99 3.17% (167.3 Ft/Mile, 31.7 m/Km) 3.79% (200.1 Ft/Mile, 37.9 m/Km) 4.95% (261.4 Ft/Mile, 49.5 m/Km) 0:53 0:33 0.63 0.95
Mixed 1025 1.15% (60.9 Ft/Mile, 11.5 m/Km) 4.08% (215.7 Ft/Mile, 40.8 m/Km) 4.24% (224.1 Ft/Mile, 42.4 m/Km) 0:46 0:28 0.23 0.35
Footpod (uncalibrated) Normal 3143 2.45% (129.5 Ft/Mile, 24.5 m/Km) 3.80% (200.8 Ft/Mile, 38.0 m/Km) 4.53% (239.0 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.49 0.74
Under Bridge 207 3.41% (180.1 Ft/Mile, 34.1 m/Km) 4.05% (213.7 Ft/Mile, 40.5 m/Km) 5.30% (279.7 Ft/Mile, 53.0 m/Km) 0:57 0:35 0.68 1.02
Post Bridge 176 2.17% (114.7 Ft/Mile, 21.7 m/Km) 3.53% (186.1 Ft/Mile, 35.3 m/Km) 4.14% (218.8 Ft/Mile, 41.4 m/Km) 0:45 0:27 0.43 0.65
Turn Around 198 1.81% (95.7 Ft/Mile, 18.1 m/Km) 3.67% (193.6 Ft/Mile, 36.7 m/Km) 4.09% (216.1 Ft/Mile, 40.9 m/Km) 0:44 0:27 0.36 0.54
Straight 671 2.64% (139.3 Ft/Mile, 26.4 m/Km) 3.69% (194.9 Ft/Mile, 36.9 m/Km) 4.54% (239.6 Ft/Mile, 45.4 m/Km) 0:49 0:30 0.53 0.79
Power Line 487 2.57% (135.7 Ft/Mile, 25.7 m/Km) 3.91% (206.4 Ft/Mile, 39.1 m/Km) 4.68% (247.1 Ft/Mile, 46.8 m/Km) 0:51 0:31 0.51 0.77
Mixed 3724 2.46% (129.8 Ft/Mile, 24.6 m/Km) 3.81% (201.0 Ft/Mile, 38.1 m/Km) 4.53% (239.3 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.49 0.74
Polar RC3 GPS Normal 1166 0.77% (40.4 Ft/Mile, 7.7 m/Km) 3.75% (197.8 Ft/Mile, 37.5 m/Km) 3.82% (201.9 Ft/Mile, 38.2 m/Km) 0:41 0:25 0.15 0.23
Under Bridge 88 4.91% (259.4 Ft/Mile, 49.1 m/Km) 7.80% (411.6 Ft/Mile, 78.0 m/Km) 9.23% (487.3 Ft/Mile, 92.3 m/Km) 1:40 1:01 0.98 1.47
Post Bridge 86 6.63% (350.1 Ft/Mile, 66.3 m/Km) 4.96% (262.0 Ft/Mile, 49.6 m/Km) 8.31% (438.9 Ft/Mile, 83.1 m/Km) 1:30 0:55 1.33 1.99
Turn Around 93 5.00% (263.8 Ft/Mile, 50.0 m/Km) 4.51% (238.0 Ft/Mile, 45.1 m/Km) 6.75% (356.3 Ft/Mile, 67.5 m/Km) 1:13 0:45 1.00 1.50
Straight 239 0.33% (17.2 Ft/Mile, 3.3 m/Km) 2.71% (143.1 Ft/Mile, 27.1 m/Km) 2.73% (144.1 Ft/Mile, 27.3 m/Km) 0:29 0:18 0.07 0.10
Power Line 171 1.18% (62.5 Ft/Mile, 11.8 m/Km) 3.59% (189.5 Ft/Mile, 35.9 m/Km) 3.78% (199.6 Ft/Mile, 37.8 m/Km) 0:41 0:25 0.24 0.35
Mixed 1433 1.65% (86.9 Ft/Mile, 16.5 m/Km) 4.62% (244.2 Ft/Mile, 46.2 m/Km) 4.91% (259.2 Ft/Mile, 49.1 m/Km) 0:53 0:32 0.33 0.49
TomTom Cardio Runner Normal 778 3.06% (161.6 Ft/Mile, 30.6 m/Km) 3.58% (189.2 Ft/Mile, 35.8 m/Km) 4.71% (248.9 Ft/Mile, 47.1 m/Km) 0:51 0:31 0.61 0.92
Under Bridge 58 4.07% (214.8 Ft/Mile, 40.7 m/Km) 3.79% (200.3 Ft/Mile, 37.9 m/Km) 5.59% (295.1 Ft/Mile, 55.9 m/Km) 1:00 0:37 0.81 1.22
Post Bridge 56 4.20% (221.6 Ft/Mile, 42.0 m/Km) 2.78% (146.7 Ft/Mile, 27.8 m/Km) 5.06% (267.4 Ft/Mile, 50.6 m/Km) 0:55 0:33 0.84 1.26
Turn Around 54 7.11% (375.3 Ft/Mile, 71.1 m/Km) 3.00% (158.4 Ft/Mile, 30.0 m/Km) 7.78% (410.6 Ft/Mile, 77.8 m/Km) 1:24 0:51 1.42 2.13
Straight 142 1.36% (71.9 Ft/Mile, 13.6 m/Km) 3.34% (176.3 Ft/Mile, 33.4 m/Km) 3.61% (190.5 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.27 0.41
Power Line 124 3.96% (209.3 Ft/Mile, 39.6 m/Km) 3.68% (194.3 Ft/Mile, 36.8 m/Km) 5.42% (286.2 Ft/Mile, 54.2 m/Km) 0:59 0:36 0.79 1.19
Mixed 946 3.42% (180.6 Ft/Mile, 34.2 m/Km) 3.65% (192.8 Ft/Mile, 36.5 m/Km) 5.00% (264.2 Ft/Mile, 50.0 m/Km) 0:54 0:33 0.68 1.03
Garmin 920XT (GLONASS) Normal 594 2.92% (154.4 Ft/Mile, 29.2 m/Km) 3.44% (181.7 Ft/Mile, 34.4 m/Km) 4.52% (238.5 Ft/Mile, 45.2 m/Km) 0:49 0:30 0.58 0.88
Under Bridge 36 1.04% (55.1 Ft/Mile, 10.4 m/Km) 2.47% (130.6 Ft/Mile, 24.7 m/Km) 2.69% (142.1 Ft/Mile, 26.9 m/Km) 0:29 0:18 0.21 0.31
Post Bridge 36 7.15% (377.4 Ft/Mile, 71.5 m/Km) 3.29% (173.5 Ft/Mile, 32.9 m/Km) 7.96% (420.3 Ft/Mile, 79.6 m/Km) 1:26 0:53 1.43 2.14
Turn Around 46 8.02% (423.7 Ft/Mile, 80.2 m/Km) 3.96% (209.1 Ft/Mile, 39.6 m/Km) 9.03% (476.7 Ft/Mile, 90.3 m/Km) 1:38 0:60 1.60 2.41
Straight 137 0.76% (40.0 Ft/Mile, 7.6 m/Km) 2.52% (133.2 Ft/Mile, 25.2 m/Km) 2.63% (139.1 Ft/Mile, 26.3 m/Km) 0:28 0:17 0.15 0.23
Power Line 71 2.85% (150.3 Ft/Mile, 28.5 m/Km) 3.39% (178.8 Ft/Mile, 33.9 m/Km) 4.44% (234.3 Ft/Mile, 44.4 m/Km) 0:48 0:29 0.57 0.85
Mixed 712 3.37% (178.0 Ft/Mile, 33.7 m/Km) 3.78% (199.4 Ft/Mile, 37.8 m/Km) 5.06% (267.4 Ft/Mile, 50.6 m/Km) 0:55 0:33 0.67 1.01
Garmin Fenix 2 (3.30) Normal 929 2.31% (121.8 Ft/Mile, 23.1 m/Km) 3.65% (192.7 Ft/Mile, 36.5 m/Km) 4.32% (228.0 Ft/Mile, 43.2 m/Km) 0:47 0:28 0.46 0.69
Under Bridge 54 5.25% (277.3 Ft/Mile, 52.5 m/Km) 4.43% (233.9 Ft/Mile, 44.3 m/Km) 6.91% (364.8 Ft/Mile, 69.1 m/Km) 1:15 0:46 1.05 1.58
Post Bridge 54 7.82% (412.8 Ft/Mile, 78.2 m/Km) 4.30% (226.8 Ft/Mile, 43.0 m/Km) 8.98% (474.4 Ft/Mile, 89.8 m/Km) 1:37 0:59 1.56 2.35
Turn Around 74 9.38% (495.2 Ft/Mile, 93.8 m/Km) 3.55% (187.5 Ft/Mile, 35.5 m/Km) 10.09% (532.7 Ft/Mile, 100.9 m/Km) 1:49 1:07 1.88 2.81
Straight 222 0.26% (13.6 Ft/Mile, 2.6 m/Km) 2.41% (127.2 Ft/Mile, 24.1 m/Km) 2.42% (127.9 Ft/Mile, 24.2 m/Km) 0:26 0:16 0.05 0.08
Power Line 107 1.97% (104.1 Ft/Mile, 19.7 m/Km) 3.85% (203.2 Ft/Mile, 38.5 m/Km) 4.33% (228.5 Ft/Mile, 43.3 m/Km) 0:47 0:29 0.39 0.59
Mixed 1111 2.68% (141.4 Ft/Mile, 26.8 m/Km) 4.61% (243.3 Ft/Mile, 46.1 m/Km) 5.33% (281.4 Ft/Mile, 53.3 m/Km) 0:58 0:35 0.54 0.80
Garmin 10 Normal 854 3.41% (179.8 Ft/Mile, 34.1 m/Km) 3.77% (199.2 Ft/Mile, 37.7 m/Km) 5.08% (268.4 Ft/Mile, 50.8 m/Km) 0:55 0:34 0.68 1.02
Under Bridge 62 0.44% (23.4 Ft/Mile, 4.4 m/Km) 2.52% (133.0 Ft/Mile, 25.2 m/Km) 2.56% (135.1 Ft/Mile, 25.6 m/Km) 0:28 0:17 0.09 0.13
Post Bridge 62 9.11% (481.0 Ft/Mile, 91.1 m/Km) 4.01% (211.6 Ft/Mile, 40.1 m/Km) 10.02% (529.1 Ft/Mile, 100.2 m/Km) 1:48 1:06 1.82 2.73
Turn Around 64 9.51% (502.3 Ft/Mile, 95.1 m/Km) 4.60% (242.9 Ft/Mile, 46.0 m/Km) 10.63% (561.5 Ft/Mile, 106.3 m/Km) 1:55 1:10 1.90 2.85
Straight 170 0.95% (50.4 Ft/Mile, 9.5 m/Km) 2.54% (134.0 Ft/Mile, 25.4 m/Km) 2.71% (143.2 Ft/Mile, 27.1 m/Km) 0:29 0:18 0.19 0.29
Power Line 129 3.25% (171.7 Ft/Mile, 32.5 m/Km) 3.47% (183.3 Ft/Mile, 34.7 m/Km) 4.77% (251.7 Ft/Mile, 47.7 m/Km) 0:51 0:31 0.65 0.98
Mixed 1042 3.89% (205.4 Ft/Mile, 38.9 m/Km) 4.37% (231.0 Ft/Mile, 43.7 m/Km) 5.86% (309.2 Ft/Mile, 58.6 m/Km) 1:03 0:39 0.78 1.17
Garmin 620 (pre-v3.30) Normal 2785 2.85% (150.3 Ft/Mile, 28.5 m/Km) 4.73% (249.6 Ft/Mile, 47.3 m/Km) 5.52% (291.4 Ft/Mile, 55.2 m/Km) 0:60 0:36 0.57 0.85
Under Bridge 163 0.96% (50.7 Ft/Mile, 9.6 m/Km) 4.77% (251.7 Ft/Mile, 47.7 m/Km) 4.86% (256.8 Ft/Mile, 48.6 m/Km) 0:53 0:32 0.19 0.29
Post Bridge 161 6.25% (329.9 Ft/Mile, 62.5 m/Km) 6.12% (323.1 Ft/Mile, 61.2 m/Km) 8.76% (462.5 Ft/Mile, 87.6 m/Km) 1:35 0:58 1.25 1.87
Turn Around 211 9.01% (475.8 Ft/Mile, 90.1 m/Km) 6.60% (348.5 Ft/Mile, 66.0 m/Km) 11.19% (590.7 Ft/Mile, 111.9 m/Km) 2:01 1:14 1.80 2.70
Straight 598 0.47% (24.9 Ft/Mile, 4.7 m/Km) 3.20% (169.0 Ft/Mile, 32.0 m/Km) 3.23% (170.8 Ft/Mile, 32.3 m/Km) 0:35 0:21 0.09 0.14
Power Line 382 2.78% (146.9 Ft/Mile, 27.8 m/Km) 4.30% (227.2 Ft/Mile, 43.0 m/Km) 5.13% (270.7 Ft/Mile, 51.3 m/Km) 0:55 0:34 0.56 0.83
Mixed 3320 3.31% (174.8 Ft/Mile, 33.1 m/Km) 5.23% (276.1 Ft/Mile, 52.3 m/Km) 6.19% (326.8 Ft/Mile, 61.9 m/Km) 1:07 0:41 0.66 0.99
Garmin Fenix 2 (pre-v3.30) Normal 3648 2.33% (122.8 Ft/Mile, 23.3 m/Km) 5.54% (292.6 Ft/Mile, 55.4 m/Km) 6.01% (317.3 Ft/Mile, 60.1 m/Km) 1:05 0:40 0.47 0.70
Under Bridge 231 3.72% (196.2 Ft/Mile, 37.2 m/Km) 5.17% (273.0 Ft/Mile, 51.7 m/Km) 6.37% (336.5 Ft/Mile, 63.7 m/Km) 1:09 0:42 0.74 1.11
Post Bridge 224 7.95% (419.9 Ft/Mile, 79.5 m/Km) 5.58% (294.7 Ft/Mile, 55.8 m/Km) 9.73% (513.8 Ft/Mile, 97.3 m/Km) 1:45 1:04 1.59 2.39
Turn Around 275 10.24% (540.5 Ft/Mile, 102.4 m/Km) 5.81% (307.0 Ft/Mile, 58.1 m/Km) 11.79% (622.4 Ft/Mile, 117.9 m/Km) 2:07 1:18 2.05 3.07
Straight 760 0.71% (37.5 Ft/Mile, 7.1 m/Km) 4.49% (237.3 Ft/Mile, 44.9 m/Km) 4.55% (240.3 Ft/Mile, 45.5 m/Km) 0:49 0:30 0.14 0.21
Power Line 497 1.50% (79.0 Ft/Mile, 15.0 m/Km) 5.56% (293.3 Ft/Mile, 55.6 m/Km) 5.75% (303.8 Ft/Mile, 57.5 m/Km) 1:02 0:38 0.30 0.45
Mixed 4378 2.79% (147.4 Ft/Mile, 27.9 m/Km) 6.16% (325.3 Ft/Mile, 61.6 m/Km) 6.76% (357.2 Ft/Mile, 67.6 m/Km) 1:13 0:45 0.56 0.84
Polar M400 Normal 1281 4.24% (224.1 Ft/Mile, 42.4 m/Km) 4.43% (233.6 Ft/Mile, 44.3 m/Km) 6.13% (323.8 Ft/Mile, 61.3 m/Km) 1:06 0:40 0.85 1.27
Under Bridge 92 0.50% (26.5 Ft/Mile, 5.0 m/Km) 3.06% (161.7 Ft/Mile, 30.6 m/Km) 3.10% (163.9 Ft/Mile, 31.0 m/Km) 0:34 0:20 0.10 0.15
Post Bridge 89 9.68% (511.0 Ft/Mile, 96.8 m/Km) 5.56% (293.7 Ft/Mile, 55.6 m/Km) 11.21% (591.9 Ft/Mile, 112.1 m/Km) 2:01 1:14 1.94 2.90
Turn Around 94 13.77% (727.2 Ft/Mile, 137.7 m/Km) 4.96% (262.1 Ft/Mile, 49.6 m/Km) 14.71% (776.6 Ft/Mile, 147.1 m/Km) 2:39 1:37 2.75 4.13
Straight 262 1.12% (59.4 Ft/Mile, 11.2 m/Km) 2.97% (156.8 Ft/Mile, 29.7 m/Km) 3.18% (167.7 Ft/Mile, 31.8 m/Km) 0:34 0:21 0.22 0.34
Power Line 174 4.27% (225.3 Ft/Mile, 42.7 m/Km) 3.93% (207.5 Ft/Mile, 39.3 m/Km) 5.81% (306.8 Ft/Mile, 58.1 m/Km) 1:03 0:38 0.85 1.28
Mixed 1556 4.91% (259.2 Ft/Mile, 49.1 m/Km) 5.24% (276.7 Ft/Mile, 52.4 m/Km) 7.18% (379.2 Ft/Mile, 71.8 m/Km) 1:18 0:47 0.98 1.47

2 Condition then Devices

Condition Device Count Trueness
(Average Distance Error) 		Standard Deviation
(From mean) 		Standard Deviation
(From true) 		Pace Error (95%) Distance Error
(from 9:00 min/mile) (from 5:30 min/Km) (20 miles) (30 Km)
Normal Footpod (calibrated) 3143 0.09% (5.0 Ft/Mile, 0.9 m/Km) 2.35% (124.1 Ft/Mile, 23.5 m/Km) 2.35% (124.2 Ft/Mile, 23.5 m/Km) 0:25 0:16 0.02 0.03
Polar V800 903 0.12% (6.1 Ft/Mile, 1.2 m/Km) 1.94% (102.3 Ft/Mile, 19.4 m/Km) 1.94% (102.5 Ft/Mile, 19.4 m/Km) 0:21 0:13 0.02 0.03
Garmin 205 920 0.46% (24.2 Ft/Mile, 4.6 m/Km) 2.56% (135.4 Ft/Mile, 25.6 m/Km) 2.61% (137.6 Ft/Mile, 26.1 m/Km) 0:28 0:17 0.09 0.14
Garmin 910XT with Footpod 600 0.95% (50.0 Ft/Mile, 9.5 m/Km) 2.76% (145.5 Ft/Mile, 27.6 m/Km) 2.91% (153.9 Ft/Mile, 29.1 m/Km) 0:31 0:19 0.19 0.28
iPhone 4s 781 1.10% (58.2 Ft/Mile, 11.0 m/Km) 2.88% (152.1 Ft/Mile, 28.8 m/Km) 3.08% (162.9 Ft/Mile, 30.8 m/Km) 0:33 0:20 0.22 0.33
Garmin 310XT with Footpod 3143 0.27% (14.2 Ft/Mile, 2.7 m/Km) 3.12% (164.9 Ft/Mile, 31.2 m/Km) 3.13% (165.5 Ft/Mile, 31.3 m/Km) 0:34 0:21 0.05 0.08
Garmin 610 1727 1.42% (75.0 Ft/Mile, 14.2 m/Km) 3.02% (159.5 Ft/Mile, 30.2 m/Km) 3.34% (176.2 Ft/Mile, 33.4 m/Km) 0:36 0:22 0.28 0.43
Garmin 620 (3.30) 950 1.47% (77.5 Ft/Mile, 14.7 m/Km) 3.09% (163.0 Ft/Mile, 30.9 m/Km) 3.42% (180.5 Ft/Mile, 34.2 m/Km) 0:37 0:23 0.29 0.44
Garmin 920XT 632 2.07% (109.5 Ft/Mile, 20.7 m/Km) 2.77% (146.4 Ft/Mile, 27.7 m/Km) 3.46% (182.9 Ft/Mile, 34.6 m/Km) 0:37 0:23 0.41 0.62
Garmin 310XT no Footpod 1605 0.70% (36.9 Ft/Mile, 7.0 m/Km) 3.67% (194.0 Ft/Mile, 36.7 m/Km) 3.74% (197.4 Ft/Mile, 37.4 m/Km) 0:40 0:25 0.14 0.21
Samsung Galaxy S3 701 0.85% (45.0 Ft/Mile, 8.5 m/Km) 3.69% (194.8 Ft/Mile, 36.9 m/Km) 3.79% (199.9 Ft/Mile, 37.9 m/Km) 0:41 0:25 0.17 0.26
Suunto Ambit2 R 858 1.01% (53.5 Ft/Mile, 10.1 m/Km) 3.46% (182.9 Ft/Mile, 34.6 m/Km) 3.61% (190.5 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.20 0.30
Footpod (uncalibrated) 3143 2.45% (129.5 Ft/Mile, 24.5 m/Km) 3.80% (200.8 Ft/Mile, 38.0 m/Km) 4.53% (239.0 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.49 0.74
Polar RC3 GPS 1166 0.77% (40.4 Ft/Mile, 7.7 m/Km) 3.75% (197.8 Ft/Mile, 37.5 m/Km) 3.82% (201.9 Ft/Mile, 38.2 m/Km) 0:41 0:25 0.15 0.23
TomTom Cardio Runner 778 3.06% (161.6 Ft/Mile, 30.6 m/Km) 3.58% (189.2 Ft/Mile, 35.8 m/Km) 4.71% (248.9 Ft/Mile, 47.1 m/Km) 0:51 0:31 0.61 0.92
Garmin 920XT (GLONASS) 594 2.92% (154.4 Ft/Mile, 29.2 m/Km) 3.44% (181.7 Ft/Mile, 34.4 m/Km) 4.52% (238.5 Ft/Mile, 45.2 m/Km) 0:49 0:30 0.58 0.88
Garmin Fenix 2 (3.30) 929 2.31% (121.8 Ft/Mile, 23.1 m/Km) 3.65% (192.7 Ft/Mile, 36.5 m/Km) 4.32% (228.0 Ft/Mile, 43.2 m/Km) 0:47 0:28 0.46 0.69
Garmin 10 854 3.41% (179.8 Ft/Mile, 34.1 m/Km) 3.77% (199.2 Ft/Mile, 37.7 m/Km) 5.08% (268.4 Ft/Mile, 50.8 m/Km) 0:55 0:34 0.68 1.02
Garmin 620 (pre-v3.30) 2785 2.85% (150.3 Ft/Mile, 28.5 m/Km) 4.73% (249.6 Ft/Mile, 47.3 m/Km) 5.52% (291.4 Ft/Mile, 55.2 m/Km) 0:60 0:36 0.57 0.85
Garmin Fenix 2 (pre-v3.30) 3648 2.33% (122.8 Ft/Mile, 23.3 m/Km) 5.54% (292.6 Ft/Mile, 55.4 m/Km) 6.01% (317.3 Ft/Mile, 60.1 m/Km) 1:05 0:40 0.47 0.70
Polar M400 1281 4.24% (224.1 Ft/Mile, 42.4 m/Km) 4.43% (233.6 Ft/Mile, 44.3 m/Km) 6.13% (323.8 Ft/Mile, 61.3 m/Km) 1:06 0:40 0.85 1.27
All 31141 1.05% (55.5 Ft/Mile, 10.5 m/Km) 4.13% (218.3 Ft/Mile, 41.3 m/Km) 4.27% (225.2 Ft/Mile, 42.7 m/Km) 0:46 0:28 0.21 0.32
Under Bridge Footpod (calibrated) 207 1.12% (59.4 Ft/Mile, 11.2 m/Km) 2.16% (114.1 Ft/Mile, 21.6 m/Km) 2.44% (128.7 Ft/Mile, 24.4 m/Km) 0:26 0:16 0.22 0.34
Polar V800 61 2.50% (132.0 Ft/Mile, 25.0 m/Km) 3.57% (188.5 Ft/Mile, 35.7 m/Km) 4.37% (230.7 Ft/Mile, 43.7 m/Km) 0:47 0:29 0.50 0.75
Garmin 205 66 2.74% (144.7 Ft/Mile, 27.4 m/Km) 6.98% (368.8 Ft/Mile, 69.8 m/Km) 7.51% (396.6 Ft/Mile, 75.1 m/Km) 1:21 0:50 0.55 0.82
Garmin 910XT with Footpod 42 0.16% (8.4 Ft/Mile, 1.6 m/Km) 3.16% (166.8 Ft/Mile, 31.6 m/Km) 3.16% (167.1 Ft/Mile, 31.6 m/Km) 0:34 0:21 0.03 0.05
iPhone 4s 59 2.49% (131.5 Ft/Mile, 24.9 m/Km) 3.33% (175.8 Ft/Mile, 33.3 m/Km) 4.17% (220.2 Ft/Mile, 41.7 m/Km) 0:45 0:28 0.50 0.75
Garmin 310XT with Footpod 207 1.56% (82.2 Ft/Mile, 15.6 m/Km) 3.47% (183.1 Ft/Mile, 34.7 m/Km) 3.80% (200.8 Ft/Mile, 38.0 m/Km) 0:41 0:25 0.31 0.47
Garmin 610 112 0.90% (47.4 Ft/Mile, 9.0 m/Km) 2.80% (147.6 Ft/Mile, 28.0 m/Km) 2.94% (155.1 Ft/Mile, 29.4 m/Km) 0:32 0:19 0.18 0.27
Garmin 620 (3.30) 52 0.87% (45.7 Ft/Mile, 8.7 m/Km) 3.66% (193.2 Ft/Mile, 36.6 m/Km) 3.76% (198.6 Ft/Mile, 37.6 m/Km) 0:41 0:25 0.17 0.26
Garmin 920XT 37 1.14% (60.1 Ft/Mile, 11.4 m/Km) 2.43% (128.2 Ft/Mile, 24.3 m/Km) 2.69% (142.0 Ft/Mile, 26.9 m/Km) 0:29 0:18 0.23 0.34
Garmin 310XT no Footpod 110 0.89% (47.1 Ft/Mile, 8.9 m/Km) 4.18% (220.7 Ft/Mile, 41.8 m/Km) 4.27% (225.7 Ft/Mile, 42.7 m/Km) 0:46 0:28 0.18 0.27
Samsung Galaxy S3 38 1.31% (69.0 Ft/Mile, 13.1 m/Km) 3.14% (165.6 Ft/Mile, 31.4 m/Km) 3.41% (179.8 Ft/Mile, 34.1 m/Km) 0:37 0:22 0.26 0.39
Suunto Ambit2 R 50 4.65% (245.7 Ft/Mile, 46.5 m/Km) 5.64% (297.6 Ft/Mile, 56.4 m/Km) 7.34% (387.5 Ft/Mile, 73.4 m/Km) 1:19 0:48 0.93 1.40
Footpod (uncalibrated) 207 3.41% (180.1 Ft/Mile, 34.1 m/Km) 4.05% (213.7 Ft/Mile, 40.5 m/Km) 5.30% (279.7 Ft/Mile, 53.0 m/Km) 0:57 0:35 0.68 1.02
Polar RC3 GPS 88 4.91% (259.4 Ft/Mile, 49.1 m/Km) 7.80% (411.6 Ft/Mile, 78.0 m/Km) 9.23% (487.3 Ft/Mile, 92.3 m/Km) 1:40 1:01 0.98 1.47
TomTom Cardio Runner 58 4.07% (214.8 Ft/Mile, 40.7 m/Km) 3.79% (200.3 Ft/Mile, 37.9 m/Km) 5.59% (295.1 Ft/Mile, 55.9 m/Km) 1:00 0:37 0.81 1.22
Garmin 920XT (GLONASS) 36 1.04% (55.1 Ft/Mile, 10.4 m/Km) 2.47% (130.6 Ft/Mile, 24.7 m/Km) 2.69% (142.1 Ft/Mile, 26.9 m/Km) 0:29 0:18 0.21 0.31
Garmin Fenix 2 (3.30) 54 5.25% (277.3 Ft/Mile, 52.5 m/Km) 4.43% (233.9 Ft/Mile, 44.3 m/Km) 6.91% (364.8 Ft/Mile, 69.1 m/Km) 1:15 0:46 1.05 1.58
Garmin 10 62 0.44% (23.4 Ft/Mile, 4.4 m/Km) 2.52% (133.0 Ft/Mile, 25.2 m/Km) 2.56% (135.1 Ft/Mile, 25.6 m/Km) 0:28 0:17 0.09 0.13
Garmin 620 (pre-v3.30) 163 0.96% (50.7 Ft/Mile, 9.6 m/Km) 4.77% (251.7 Ft/Mile, 47.7 m/Km) 4.86% (256.8 Ft/Mile, 48.6 m/Km) 0:53 0:32 0.19 0.29
Garmin Fenix 2 (pre-v3.30) 231 3.72% (196.2 Ft/Mile, 37.2 m/Km) 5.17% (273.0 Ft/Mile, 51.7 m/Km) 6.37% (336.5 Ft/Mile, 63.7 m/Km) 1:09 0:42 0.74 1.11
Polar M400 92 0.50% (26.5 Ft/Mile, 5.0 m/Km) 3.06% (161.7 Ft/Mile, 30.6 m/Km) 3.10% (163.9 Ft/Mile, 31.0 m/Km) 0:34 0:20 0.10 0.15
All 2032 0.76% (40.1 Ft/Mile, 7.6 m/Km) 4.89% (257.9 Ft/Mile, 48.9 m/Km) 4.94% (261.0 Ft/Mile, 49.4 m/Km) 0:53 0:33 0.15 0.23
Post Bridge Footpod (calibrated) 176 0.32% (16.7 Ft/Mile, 3.2 m/Km) 1.99% (104.8 Ft/Mile, 19.9 m/Km) 2.01% (106.2 Ft/Mile, 20.1 m/Km) 0:22 0:13 0.06 0.09
Polar V800 61 0.57% (30.2 Ft/Mile, 5.7 m/Km) 2.60% (137.4 Ft/Mile, 26.0 m/Km) 2.66% (140.7 Ft/Mile, 26.6 m/Km) 0:29 0:18 0.11 0.17
Garmin 205 66 1.21% (64.0 Ft/Mile, 12.1 m/Km) 2.37% (125.0 Ft/Mile, 23.7 m/Km) 2.66% (140.7 Ft/Mile, 26.6 m/Km) 0:29 0:18 0.24 0.36
Garmin 910XT with Footpod 40 3.81% (201.2 Ft/Mile, 38.1 m/Km) 2.01% (105.9 Ft/Mile, 20.1 m/Km) 4.35% (229.7 Ft/Mile, 43.5 m/Km) 0:47 0:29 0.76 1.14
iPhone 4s 54 0.21% (11.0 Ft/Mile, 2.1 m/Km) 2.60% (137.1 Ft/Mile, 26.0 m/Km) 2.61% (137.6 Ft/Mile, 26.1 m/Km) 0:28 0:17 0.04 0.06
Garmin 310XT with Footpod 176 2.48% (131.0 Ft/Mile, 24.8 m/Km) 3.32% (175.3 Ft/Mile, 33.2 m/Km) 4.15% (219.1 Ft/Mile, 41.5 m/Km) 0:45 0:27 0.50 0.74
Garmin 610 112 3.75% (197.8 Ft/Mile, 37.5 m/Km) 2.53% (133.5 Ft/Mile, 25.3 m/Km) 4.53% (239.4 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.75 1.12
Garmin 620 (3.30) 52 3.85% (203.5 Ft/Mile, 38.5 m/Km) 3.06% (161.5 Ft/Mile, 30.6 m/Km) 4.95% (261.4 Ft/Mile, 49.5 m/Km) 0:53 0:33 0.77 1.16
Garmin 920XT 37 5.07% (267.7 Ft/Mile, 50.7 m/Km) 2.94% (155.0 Ft/Mile, 29.4 m/Km) 5.92% (312.6 Ft/Mile, 59.2 m/Km) 1:04 0:39 1.01 1.52
Garmin 310XT no Footpod 106 3.19% (168.6 Ft/Mile, 31.9 m/Km) 3.30% (174.3 Ft/Mile, 33.0 m/Km) 4.60% (243.1 Ft/Mile, 46.0 m/Km) 0:50 0:30 0.64 0.96
Samsung Galaxy S3 36 3.87% (204.6 Ft/Mile, 38.7 m/Km) 3.26% (172.2 Ft/Mile, 32.6 m/Km) 5.11% (269.6 Ft/Mile, 51.1 m/Km) 0:55 0:34 0.77 1.16
Suunto Ambit2 R 49 2.14% (113.1 Ft/Mile, 21.4 m/Km) 2.70% (142.3 Ft/Mile, 27.0 m/Km) 3.46% (182.5 Ft/Mile, 34.6 m/Km) 0:37 0:23 0.43 0.64
Footpod (uncalibrated) 176 2.17% (114.7 Ft/Mile, 21.7 m/Km) 3.53% (186.1 Ft/Mile, 35.3 m/Km) 4.14% (218.8 Ft/Mile, 41.4 m/Km) 0:45 0:27 0.43 0.65
Polar RC3 GPS 86 6.63% (350.1 Ft/Mile, 66.3 m/Km) 4.96% (262.0 Ft/Mile, 49.6 m/Km) 8.31% (438.9 Ft/Mile, 83.1 m/Km) 1:30 0:55 1.33 1.99
TomTom Cardio Runner 56 4.20% (221.6 Ft/Mile, 42.0 m/Km) 2.78% (146.7 Ft/Mile, 27.8 m/Km) 5.06% (267.4 Ft/Mile, 50.6 m/Km) 0:55 0:33 0.84 1.26
Garmin 920XT (GLONASS) 36 7.15% (377.4 Ft/Mile, 71.5 m/Km) 3.29% (173.5 Ft/Mile, 32.9 m/Km) 7.96% (420.3 Ft/Mile, 79.6 m/Km) 1:26 0:53 1.43 2.14
Garmin Fenix 2 (3.30) 54 7.82% (412.8 Ft/Mile, 78.2 m/Km) 4.30% (226.8 Ft/Mile, 43.0 m/Km) 8.98% (474.4 Ft/Mile, 89.8 m/Km) 1:37 0:59 1.56 2.35
Garmin 10 62 9.11% (481.0 Ft/Mile, 91.1 m/Km) 4.01% (211.6 Ft/Mile, 40.1 m/Km) 10.02% (529.1 Ft/Mile, 100.2 m/Km) 1:48 1:06 1.82 2.73
Garmin 620 (pre-v3.30) 161 6.25% (329.9 Ft/Mile, 62.5 m/Km) 6.12% (323.1 Ft/Mile, 61.2 m/Km) 8.76% (462.5 Ft/Mile, 87.6 m/Km) 1:35 0:58 1.25 1.87
Garmin Fenix 2 (pre-v3.30) 224 7.95% (419.9 Ft/Mile, 79.5 m/Km) 5.58% (294.7 Ft/Mile, 55.8 m/Km) 9.73% (513.8 Ft/Mile, 97.3 m/Km) 1:45 1:04 1.59 2.39
Polar M400 89 9.68% (511.0 Ft/Mile, 96.8 m/Km) 5.56% (293.7 Ft/Mile, 55.6 m/Km) 11.21% (591.9 Ft/Mile, 112.1 m/Km) 2:01 1:14 1.94 2.90
All 1909 3.86% (203.7 Ft/Mile, 38.6 m/Km) 5.28% (278.7 Ft/Mile, 52.8 m/Km) 6.54% (345.2 Ft/Mile, 65.4 m/Km) 1:11 0:43 0.77 1.16
Turn Around Footpod (calibrated) 198 0.43% (22.7 Ft/Mile, 4.3 m/Km) 2.31% (122.2 Ft/Mile, 23.1 m/Km) 2.35% (124.3 Ft/Mile, 23.5 m/Km) 0:25 0:16 0.09 0.13
Polar V800 70 3.61% (190.4 Ft/Mile, 36.1 m/Km) 2.72% (143.8 Ft/Mile, 27.2 m/Km) 4.54% (239.7 Ft/Mile, 45.4 m/Km) 0:49 0:30 0.72 1.08
Garmin 205 73 2.87% (151.3 Ft/Mile, 28.7 m/Km) 2.34% (123.3 Ft/Mile, 23.4 m/Km) 3.71% (196.0 Ft/Mile, 37.1 m/Km) 0:40 0:25 0.57 0.86
Garmin 910XT with Footpod 43 4.73% (249.8 Ft/Mile, 47.3 m/Km) 2.55% (134.4 Ft/Mile, 25.5 m/Km) 5.42% (286.2 Ft/Mile, 54.2 m/Km) 0:59 0:36 0.95 1.42
iPhone 4s 62 2.27% (119.7 Ft/Mile, 22.7 m/Km) 4.00% (211.0 Ft/Mile, 40.0 m/Km) 4.60% (243.1 Ft/Mile, 46.0 m/Km) 0:50 0:30 0.45 0.68
Garmin 310XT with Footpod 198 3.64% (192.3 Ft/Mile, 36.4 m/Km) 3.54% (186.8 Ft/Mile, 35.4 m/Km) 5.08% (268.5 Ft/Mile, 50.8 m/Km) 0:55 0:34 0.73 1.09
Garmin 610 134 5.32% (281.1 Ft/Mile, 53.2 m/Km) 2.49% (131.6 Ft/Mile, 24.9 m/Km) 5.90% (311.3 Ft/Mile, 59.0 m/Km) 1:04 0:39 1.06 1.60
Garmin 620 (3.30) 76 4.60% (242.8 Ft/Mile, 46.0 m/Km) 3.59% (189.5 Ft/Mile, 35.9 m/Km) 5.86% (309.3 Ft/Mile, 58.6 m/Km) 1:03 0:39 0.92 1.38
Garmin 920XT 49 6.83% (360.9 Ft/Mile, 68.3 m/Km) 3.39% (178.8 Ft/Mile, 33.9 m/Km) 7.69% (406.1 Ft/Mile, 76.9 m/Km) 1:23 0:51 1.37 2.05
Garmin 310XT no Footpod 124 3.81% (201.1 Ft/Mile, 38.1 m/Km) 5.29% (279.5 Ft/Mile, 52.9 m/Km) 6.53% (344.8 Ft/Mile, 65.3 m/Km) 1:11 0:43 0.76 1.14
Samsung Galaxy S3 57 6.66% (351.6 Ft/Mile, 66.6 m/Km) 3.73% (197.1 Ft/Mile, 37.3 m/Km) 7.69% (405.9 Ft/Mile, 76.9 m/Km) 1:23 0:51 1.33 2.00
Suunto Ambit2 R 68 6.50% (343.1 Ft/Mile, 65.0 m/Km) 4.24% (223.7 Ft/Mile, 42.4 m/Km) 7.80% (411.7 Ft/Mile, 78.0 m/Km) 1:24 0:51 1.30 1.95
Footpod (uncalibrated) 198 1.81% (95.7 Ft/Mile, 18.1 m/Km) 3.67% (193.6 Ft/Mile, 36.7 m/Km) 4.09% (216.1 Ft/Mile, 40.9 m/Km) 0:44 0:27 0.36 0.54
Polar RC3 GPS 93 5.00% (263.8 Ft/Mile, 50.0 m/Km) 4.51% (238.0 Ft/Mile, 45.1 m/Km) 6.75% (356.3 Ft/Mile, 67.5 m/Km) 1:13 0:45 1.00 1.50
TomTom Cardio Runner 54 7.11% (375.3 Ft/Mile, 71.1 m/Km) 3.00% (158.4 Ft/Mile, 30.0 m/Km) 7.78% (410.6 Ft/Mile, 77.8 m/Km) 1:24 0:51 1.42 2.13
Garmin 920XT (GLONASS) 46 8.02% (423.7 Ft/Mile, 80.2 m/Km) 3.96% (209.1 Ft/Mile, 39.6 m/Km) 9.03% (476.7 Ft/Mile, 90.3 m/Km) 1:38 0:60 1.60 2.41
Garmin Fenix 2 (3.30) 74 9.38% (495.2 Ft/Mile, 93.8 m/Km) 3.55% (187.5 Ft/Mile, 35.5 m/Km) 10.09% (532.7 Ft/Mile, 100.9 m/Km) 1:49 1:07 1.88 2.81
Garmin 10 64 9.51% (502.3 Ft/Mile, 95.1 m/Km) 4.60% (242.9 Ft/Mile, 46.0 m/Km) 10.63% (561.5 Ft/Mile, 106.3 m/Km) 1:55 1:10 1.90 2.85
Garmin 620 (pre-v3.30) 211 9.01% (475.8 Ft/Mile, 90.1 m/Km) 6.60% (348.5 Ft/Mile, 66.0 m/Km) 11.19% (590.7 Ft/Mile, 111.9 m/Km) 2:01 1:14 1.80 2.70
Garmin Fenix 2 (pre-v3.30) 275 10.24% (540.5 Ft/Mile, 102.4 m/Km) 5.81% (307.0 Ft/Mile, 58.1 m/Km) 11.79% (622.4 Ft/Mile, 117.9 m/Km) 2:07 1:18 2.05 3.07
Polar M400 94 13.77% (727.2 Ft/Mile, 137.7 m/Km) 4.96% (262.1 Ft/Mile, 49.6 m/Km) 14.71% (776.6 Ft/Mile, 147.1 m/Km) 2:39 1:37 2.75 4.13
All 2261 5.52% (291.3 Ft/Mile, 55.2 m/Km) 5.89% (310.9 Ft/Mile, 58.9 m/Km) 8.07% (426.1 Ft/Mile, 80.7 m/Km) 1:27 0:53 1.10 1.66
Straight Footpod (calibrated) 671 0.30% (15.9 Ft/Mile, 3.0 m/Km) 2.35% (124.1 Ft/Mile, 23.5 m/Km) 2.37% (125.1 Ft/Mile, 23.7 m/Km) 0:26 0:16 0.06 0.09
Polar V800 189 0.55% (28.8 Ft/Mile, 5.5 m/Km) 1.39% (73.3 Ft/Mile, 13.9 m/Km) 1.49% (78.8 Ft/Mile, 14.9 m/Km) 0:16 0:10 0.11 0.16
Garmin 205 198 0.35% (18.4 Ft/Mile, 3.5 m/Km) 1.63% (86.2 Ft/Mile, 16.3 m/Km) 1.67% (88.2 Ft/Mile, 16.7 m/Km) 0:18 0:11 0.07 0.10
Garmin 910XT with Footpod 122 0.25% (13.0 Ft/Mile, 2.5 m/Km) 1.74% (91.8 Ft/Mile, 17.4 m/Km) 1.76% (92.8 Ft/Mile, 17.6 m/Km) 0:19 0:12 0.05 0.07
iPhone 4s 166 1.87% (98.8 Ft/Mile, 18.7 m/Km) 2.23% (117.9 Ft/Mile, 22.3 m/Km) 2.92% (154.0 Ft/Mile, 29.2 m/Km) 0:31 0:19 0.37 0.56
Garmin 310XT with Footpod 671 0.97% (51.1 Ft/Mile, 9.7 m/Km) 2.29% (121.1 Ft/Mile, 22.9 m/Km) 2.49% (131.5 Ft/Mile, 24.9 m/Km) 0:27 0:16 0.19 0.29
Garmin 610 375 0.56% (29.5 Ft/Mile, 5.6 m/Km) 2.03% (106.9 Ft/Mile, 20.3 m/Km) 2.10% (110.9 Ft/Mile, 21.0 m/Km) 0:23 0:14 0.11 0.17
Garmin 620 (3.30) 231 0.17% (9.2 Ft/Mile, 1.7 m/Km) 2.30% (121.5 Ft/Mile, 23.0 m/Km) 2.31% (121.8 Ft/Mile, 23.1 m/Km) 0:25 0:15 0.03 0.05
Garmin 920XT 142 0.48% (25.6 Ft/Mile, 4.8 m/Km) 2.20% (116.3 Ft/Mile, 22.0 m/Km) 2.26% (119.1 Ft/Mile, 22.6 m/Km) 0:24 0:15 0.10 0.15
Garmin 310XT no Footpod 326 0.42% (22.2 Ft/Mile, 4.2 m/Km) 2.82% (149.1 Ft/Mile, 28.2 m/Km) 2.85% (150.7 Ft/Mile, 28.5 m/Km) 0:31 0:19 0.08 0.13
Samsung Galaxy S3 179 0.63% (33.1 Ft/Mile, 6.3 m/Km) 2.56% (135.3 Ft/Mile, 25.6 m/Km) 2.64% (139.3 Ft/Mile, 26.4 m/Km) 0:28 0:17 0.13 0.19
Suunto Ambit2 R 200 0.71% (37.7 Ft/Mile, 7.1 m/Km) 2.49% (131.7 Ft/Mile, 24.9 m/Km) 2.59% (137.0 Ft/Mile, 25.9 m/Km) 0:28 0:17 0.14 0.21
Footpod (uncalibrated) 671 2.64% (139.3 Ft/Mile, 26.4 m/Km) 3.69% (194.9 Ft/Mile, 36.9 m/Km) 4.54% (239.6 Ft/Mile, 45.4 m/Km) 0:49 0:30 0.53 0.79
Polar RC3 GPS 239 0.33% (17.2 Ft/Mile, 3.3 m/Km) 2.71% (143.1 Ft/Mile, 27.1 m/Km) 2.73% (144.1 Ft/Mile, 27.3 m/Km) 0:29 0:18 0.07 0.10
TomTom Cardio Runner 142 1.36% (71.9 Ft/Mile, 13.6 m/Km) 3.34% (176.3 Ft/Mile, 33.4 m/Km) 3.61% (190.5 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.27 0.41
Garmin 920XT (GLONASS) 137 0.76% (40.0 Ft/Mile, 7.6 m/Km) 2.52% (133.2 Ft/Mile, 25.2 m/Km) 2.63% (139.1 Ft/Mile, 26.3 m/Km) 0:28 0:17 0.15 0.23
Garmin Fenix 2 (3.30) 222 0.26% (13.6 Ft/Mile, 2.6 m/Km) 2.41% (127.2 Ft/Mile, 24.1 m/Km) 2.42% (127.9 Ft/Mile, 24.2 m/Km) 0:26 0:16 0.05 0.08
Garmin 10 170 0.95% (50.4 Ft/Mile, 9.5 m/Km) 2.54% (134.0 Ft/Mile, 25.4 m/Km) 2.71% (143.2 Ft/Mile, 27.1 m/Km) 0:29 0:18 0.19 0.29
Garmin 620 (pre-v3.30) 598 0.47% (24.9 Ft/Mile, 4.7 m/Km) 3.20% (169.0 Ft/Mile, 32.0 m/Km) 3.23% (170.8 Ft/Mile, 32.3 m/Km) 0:35 0:21 0.09 0.14
Garmin Fenix 2 (pre-v3.30) 760 0.71% (37.5 Ft/Mile, 7.1 m/Km) 4.49% (237.3 Ft/Mile, 44.9 m/Km) 4.55% (240.3 Ft/Mile, 45.5 m/Km) 0:49 0:30 0.14 0.21
Polar M400 262 1.12% (59.4 Ft/Mile, 11.2 m/Km) 2.97% (156.8 Ft/Mile, 29.7 m/Km) 3.18% (167.7 Ft/Mile, 31.8 m/Km) 0:34 0:21 0.22 0.34
All 6671 0.47% (25.0 Ft/Mile, 4.7 m/Km) 3.08% (162.9 Ft/Mile, 30.8 m/Km) 3.12% (164.8 Ft/Mile, 31.2 m/Km) 0:34 0:21 0.09 0.14
Power Line Footpod (calibrated) 487 0.16% (8.7 Ft/Mile, 1.6 m/Km) 2.33% (123.3 Ft/Mile, 23.3 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 0:25 0:15 0.03 0.05
Polar V800 126 0.80% (42.4 Ft/Mile, 8.0 m/Km) 1.98% (104.5 Ft/Mile, 19.8 m/Km) 2.14% (112.9 Ft/Mile, 21.4 m/Km) 0:23 0:14 0.16 0.24
Garmin 205 127 0.52% (27.3 Ft/Mile, 5.2 m/Km) 2.30% (121.3 Ft/Mile, 23.0 m/Km) 2.36% (124.4 Ft/Mile, 23.6 m/Km) 0:25 0:16 0.10 0.16
Garmin 910XT with Footpod 90 1.58% (83.5 Ft/Mile, 15.8 m/Km) 2.17% (114.4 Ft/Mile, 21.7 m/Km) 2.69% (141.9 Ft/Mile, 26.9 m/Km) 0:29 0:18 0.32 0.47
iPhone 4s 110 1.35% (71.1 Ft/Mile, 13.5 m/Km) 2.52% (133.0 Ft/Mile, 25.2 m/Km) 2.86% (150.9 Ft/Mile, 28.6 m/Km) 0:31 0:19 0.27 0.40
Garmin 310XT with Footpod 487 0.61% (32.3 Ft/Mile, 6.1 m/Km) 3.06% (161.5 Ft/Mile, 30.6 m/Km) 3.12% (164.7 Ft/Mile, 31.2 m/Km) 0:34 0:21 0.12 0.18
Garmin 610 231 1.74% (92.0 Ft/Mile, 17.4 m/Km) 2.14% (112.8 Ft/Mile, 21.4 m/Km) 2.76% (145.7 Ft/Mile, 27.6 m/Km) 0:30 0:18 0.35 0.52
Garmin 620 (3.30) 104 1.70% (89.7 Ft/Mile, 17.0 m/Km) 2.50% (132.1 Ft/Mile, 25.0 m/Km) 3.03% (159.9 Ft/Mile, 30.3 m/Km) 0:33 0:20 0.34 0.51
Garmin 920XT 76 2.69% (142.2 Ft/Mile, 26.9 m/Km) 2.44% (128.7 Ft/Mile, 24.4 m/Km) 3.64% (192.5 Ft/Mile, 36.4 m/Km) 0:39 0:24 0.54 0.81
Garmin 310XT no Footpod 229 1.23% (64.8 Ft/Mile, 12.3 m/Km) 3.20% (169.1 Ft/Mile, 32.0 m/Km) 3.43% (181.2 Ft/Mile, 34.3 m/Km) 0:37 0:23 0.25 0.37
Samsung Galaxy S3 70 2.13% (112.5 Ft/Mile, 21.3 m/Km) 3.49% (184.1 Ft/Mile, 34.9 m/Km) 4.09% (216.2 Ft/Mile, 40.9 m/Km) 0:44 0:27 0.43 0.64
Suunto Ambit2 R 99 3.17% (167.3 Ft/Mile, 31.7 m/Km) 3.79% (200.1 Ft/Mile, 37.9 m/Km) 4.95% (261.4 Ft/Mile, 49.5 m/Km) 0:53 0:33 0.63 0.95
Footpod (uncalibrated) 487 2.57% (135.7 Ft/Mile, 25.7 m/Km) 3.91% (206.4 Ft/Mile, 39.1 m/Km) 4.68% (247.1 Ft/Mile, 46.8 m/Km) 0:51 0:31 0.51 0.77
Polar RC3 GPS 171 1.18% (62.5 Ft/Mile, 11.8 m/Km) 3.59% (189.5 Ft/Mile, 35.9 m/Km) 3.78% (199.6 Ft/Mile, 37.8 m/Km) 0:41 0:25 0.24 0.35
TomTom Cardio Runner 124 3.96% (209.3 Ft/Mile, 39.6 m/Km) 3.68% (194.3 Ft/Mile, 36.8 m/Km) 5.42% (286.2 Ft/Mile, 54.2 m/Km) 0:59 0:36 0.79 1.19
Garmin 920XT (GLONASS) 71 2.85% (150.3 Ft/Mile, 28.5 m/Km) 3.39% (178.8 Ft/Mile, 33.9 m/Km) 4.44% (234.3 Ft/Mile, 44.4 m/Km) 0:48 0:29 0.57 0.85
Garmin Fenix 2 (3.30) 107 1.97% (104.1 Ft/Mile, 19.7 m/Km) 3.85% (203.2 Ft/Mile, 38.5 m/Km) 4.33% (228.5 Ft/Mile, 43.3 m/Km) 0:47 0:29 0.39 0.59
Garmin 10 129 3.25% (171.7 Ft/Mile, 32.5 m/Km) 3.47% (183.3 Ft/Mile, 34.7 m/Km) 4.77% (251.7 Ft/Mile, 47.7 m/Km) 0:51 0:31 0.65 0.98
Garmin 620 (pre-v3.30) 382 2.78% (146.9 Ft/Mile, 27.8 m/Km) 4.30% (227.2 Ft/Mile, 43.0 m/Km) 5.13% (270.7 Ft/Mile, 51.3 m/Km) 0:55 0:34 0.56 0.83
Garmin Fenix 2 (pre-v3.30) 497 1.50% (79.0 Ft/Mile, 15.0 m/Km) 5.56% (293.3 Ft/Mile, 55.6 m/Km) 5.75% (303.8 Ft/Mile, 57.5 m/Km) 1:02 0:38 0.30 0.45
Polar M400 174 4.27% (225.3 Ft/Mile, 42.7 m/Km) 3.93% (207.5 Ft/Mile, 39.3 m/Km) 5.81% (306.8 Ft/Mile, 58.1 m/Km) 1:03 0:38 0.85 1.28
All 4378 1.08% (57.1 Ft/Mile, 10.8 m/Km) 4.01% (211.5 Ft/Mile, 40.1 m/Km) 4.15% (219.1 Ft/Mile, 41.5 m/Km) 0:45 0:27 0.22 0.32
Mixed Footpod (calibrated) 3724 0.13% (7.1 Ft/Mile, 1.3 m/Km) 2.34% (123.4 Ft/Mile, 23.4 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 0:25 0:15 0.03 0.04
Polar V800 1095 0.22% (11.5 Ft/Mile, 2.2 m/Km) 2.41% (127.1 Ft/Mile, 24.1 m/Km) 2.42% (127.6 Ft/Mile, 24.2 m/Km) 0:26 0:16 0.04 0.07
Garmin 205 1125 0.47% (24.9 Ft/Mile, 4.7 m/Km) 3.14% (166.0 Ft/Mile, 31.4 m/Km) 3.18% (167.9 Ft/Mile, 31.8 m/Km) 0:34 0:21 0.09 0.14
Garmin 910XT with Footpod 725 1.28% (67.8 Ft/Mile, 12.8 m/Km) 2.94% (155.4 Ft/Mile, 29.4 m/Km) 3.21% (169.6 Ft/Mile, 32.1 m/Km) 0:35 0:21 0.26 0.39
iPhone 4s 956 0.90% (47.3 Ft/Mile, 9.0 m/Km) 3.12% (164.9 Ft/Mile, 31.2 m/Km) 3.25% (171.6 Ft/Mile, 32.5 m/Km) 0:35 0:21 0.18 0.27
Garmin 310XT with Footpod 3724 0.62% (33.0 Ft/Mile, 6.2 m/Km) 3.30% (174.1 Ft/Mile, 33.0 m/Km) 3.36% (177.2 Ft/Mile, 33.6 m/Km) 0:36 0:22 0.12 0.19
Garmin 610 2085 1.77% (93.3 Ft/Mile, 17.7 m/Km) 3.14% (165.9 Ft/Mile, 31.4 m/Km) 3.61% (190.3 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.35 0.53
Garmin 620 (3.30) 1130 1.76% (92.9 Ft/Mile, 17.6 m/Km) 3.28% (173.1 Ft/Mile, 32.8 m/Km) 3.72% (196.5 Ft/Mile, 37.2 m/Km) 0:40 0:25 0.35 0.53
Garmin 920XT 755 2.48% (131.2 Ft/Mile, 24.8 m/Km) 3.11% (164.0 Ft/Mile, 31.1 m/Km) 3.98% (210.1 Ft/Mile, 39.8 m/Km) 0:43 0:26 0.50 0.75
Garmin 310XT no Footpod 1945 0.94% (49.8 Ft/Mile, 9.4 m/Km) 3.94% (208.0 Ft/Mile, 39.4 m/Km) 4.05% (213.9 Ft/Mile, 40.5 m/Km) 0:44 0:27 0.19 0.28
Samsung Galaxy S3 832 1.28% (67.7 Ft/Mile, 12.8 m/Km) 4.00% (211.4 Ft/Mile, 40.0 m/Km) 4.20% (222.0 Ft/Mile, 42.0 m/Km) 0:45 0:28 0.26 0.38
Suunto Ambit2 R 1025 1.15% (60.9 Ft/Mile, 11.5 m/Km) 4.08% (215.7 Ft/Mile, 40.8 m/Km) 4.24% (224.1 Ft/Mile, 42.4 m/Km) 0:46 0:28 0.23 0.35
Footpod (uncalibrated) 3724 2.46% (129.8 Ft/Mile, 24.6 m/Km) 3.81% (201.0 Ft/Mile, 38.1 m/Km) 4.53% (239.3 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.49 0.74
Polar RC3 GPS 1433 1.65% (86.9 Ft/Mile, 16.5 m/Km) 4.62% (244.2 Ft/Mile, 46.2 m/Km) 4.91% (259.2 Ft/Mile, 49.1 m/Km) 0:53 0:32 0.33 0.49
TomTom Cardio Runner 946 3.42% (180.6 Ft/Mile, 34.2 m/Km) 3.65% (192.8 Ft/Mile, 36.5 m/Km) 5.00% (264.2 Ft/Mile, 50.0 m/Km) 0:54 0:33 0.68 1.03
Garmin 920XT (GLONASS) 712 3.37% (178.0 Ft/Mile, 33.7 m/Km) 3.78% (199.4 Ft/Mile, 37.8 m/Km) 5.06% (267.4 Ft/Mile, 50.6 m/Km) 0:55 0:33 0.67 1.01
Garmin Fenix 2 (3.30) 1111 2.68% (141.4 Ft/Mile, 26.8 m/Km) 4.61% (243.3 Ft/Mile, 46.1 m/Km) 5.33% (281.4 Ft/Mile, 53.3 m/Km) 0:58 0:35 0.54 0.80
Garmin 10 1042 3.89% (205.4 Ft/Mile, 38.9 m/Km) 4.37% (231.0 Ft/Mile, 43.7 m/Km) 5.86% (309.2 Ft/Mile, 58.6 m/Km) 1:03 0:39 0.78 1.17
Garmin 620 (pre-v3.30) 3320 3.31% (174.8 Ft/Mile, 33.1 m/Km) 5.23% (276.1 Ft/Mile, 52.3 m/Km) 6.19% (326.8 Ft/Mile, 61.9 m/Km) 1:07 0:41 0.66 0.99
Garmin Fenix 2 (pre-v3.30) 4378 2.79% (147.4 Ft/Mile, 27.9 m/Km) 6.16% (325.3 Ft/Mile, 61.6 m/Km) 6.76% (357.2 Ft/Mile, 67.6 m/Km) 1:13 0:45 0.56 0.84
Polar M400 1556 4.91% (259.2 Ft/Mile, 49.1 m/Km) 5.24% (276.7 Ft/Mile, 52.4 m/Km) 7.18% (379.2 Ft/Mile, 71.8 m/Km) 1:18 0:47 0.98 1.47
All 37343 1.37% (72.1 Ft/Mile, 13.7 m/Km) 4.56% (240.6 Ft/Mile, 45.6 m/Km) 4.76% (251.2 Ft/Mile, 47.6 m/Km) 0:51 0:31 0.27 0.41
Retrieved from "http://fellrnr.com/mediawiki/index.php?title=GPS_Accuracy-breakdown&oldid=6978"