GPS Accuracy-breakdown

From Fellrnr.com, Running tips
Revision as of 05:11, 19 June 2014 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) 		Average Pace Error
(from 9:00 min/mile) (from 5:30 min/Km)
Footpod (calibrated) Normal 3066 0.13% (7.0 Ft/Mile, 1.3 m/Km) 2.36% (124.4 Ft/Mile, 23.6 m/Km) 2.36% (124.6 Ft/Mile, 23.6 m/Km) 0:13 0:08
Under Bridge 204 1.16% (61.2 Ft/Mile, 11.6 m/Km) 2.16% (113.9 Ft/Mile, 21.6 m/Km) 2.45% (129.4 Ft/Mile, 24.5 m/Km) 0:13 0:08
Post Bridge 173 0.36% (19.2 Ft/Mile, 3.6 m/Km) 1.97% (103.9 Ft/Mile, 19.7 m/Km) 2.00% (105.6 Ft/Mile, 20.0 m/Km) 0:11 0:07
Turn Around 192 0.36% (19.0 Ft/Mile, 3.6 m/Km) 2.30% (121.5 Ft/Mile, 23.0 m/Km) 2.33% (123.0 Ft/Mile, 23.3 m/Km) 0:13 0:08
Straight 651 0.35% (18.6 Ft/Mile, 3.5 m/Km) 2.36% (124.5 Ft/Mile, 23.6 m/Km) 2.38% (125.9 Ft/Mile, 23.8 m/Km) 0:13 0:08
Power Line 479 0.19% (10.1 Ft/Mile, 1.9 m/Km) 2.34% (123.8 Ft/Mile, 23.4 m/Km) 2.35% (124.2 Ft/Mile, 23.5 m/Km) 0:13 0:08
Mixed 3635 0.18% (9.3 Ft/Mile, 1.8 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 2.35% (123.9 Ft/Mile, 23.5 m/Km) 0:13 0:08
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) 0:14 0:09
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) 0:41 0:25
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) 0:14 0:09
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) 0:20 0:12
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) 0:09 0:06
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) 0:13 0:08
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) 0:17 0:10
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) 0:16 0:10
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) 0:17 0:10
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) 0:23 0:14
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) 0:29 0:18
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) 0:09 0:06
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) 0:15 0:09
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) 0:17 0:11
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) 0:17 0:10
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) 0:23 0:14
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) 0:14 0:09
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) 0:25 0:15
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) 0:16 0:10
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) 0:15 0:09
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) 0:18 0:11
Garmin 310XT with Footpod Normal 3066 0.29% (15.2 Ft/Mile, 2.9 m/Km) 3.14% (166.0 Ft/Mile, 31.4 m/Km) 3.16% (166.7 Ft/Mile, 31.6 m/Km) 0:17 0:10
Under Bridge 204 1.58% (83.3 Ft/Mile, 15.8 m/Km) 3.49% (184.1 Ft/Mile, 34.9 m/Km) 3.83% (202.2 Ft/Mile, 38.3 m/Km) 0:21 0:13
Post Bridge 173 2.53% (133.6 Ft/Mile, 25.3 m/Km) 3.32% (175.5 Ft/Mile, 33.2 m/Km) 4.18% (220.8 Ft/Mile, 41.8 m/Km) 0:23 0:14
Turn Around 192 3.64% (192.4 Ft/Mile, 36.4 m/Km) 3.56% (188.1 Ft/Mile, 35.6 m/Km) 5.10% (269.4 Ft/Mile, 51.0 m/Km) 0:28 0:17
Straight 651 0.98% (52.0 Ft/Mile, 9.8 m/Km) 2.31% (121.9 Ft/Mile, 23.1 m/Km) 2.51% (132.5 Ft/Mile, 25.1 m/Km) 0:14 0:08
Power Line 479 0.63% (33.4 Ft/Mile, 6.3 m/Km) 3.07% (162.2 Ft/Mile, 30.7 m/Km) 3.14% (165.7 Ft/Mile, 31.4 m/Km) 0:17 0:10
Mixed 3635 0.64% (34.0 Ft/Mile, 6.4 m/Km) 3.32% (175.1 Ft/Mile, 33.2 m/Km) 3.38% (178.4 Ft/Mile, 33.8 m/Km) 0:18 0:11
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) 0:18 0:11
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) 0:16 0:10
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) 0:24 0:15
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) 0:32 0:19
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) 0:11 0:07
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) 0:15 0:09
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) 0:19 0:12
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) 0:20 0:12
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) 0:23 0:14
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) 0:25 0:15
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) 0:35 0:22
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) 0:15 0:09
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) 0:19 0:11
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) 0:22 0:13
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) 0:20 0:12
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) 0:18 0:11
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) 0:28 0:17
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) 0:42 0:25
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) 0:14 0:09
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) 0:22 0:14
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) 0:23 0:14
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) 0:19 0:12
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) 0:40 0:24
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) 0:19 0:11
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) 0:42 0:26
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) 0:14 0:09
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) 0:27 0:16
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) 0:23 0:14
Footpod (uncalibrated) Normal 3066 2.50% (131.8 Ft/Mile, 25.0 m/Km) 3.83% (202.4 Ft/Mile, 38.3 m/Km) 4.58% (241.6 Ft/Mile, 45.8 m/Km) 0:25 0:15
Under Bridge 204 3.45% (182.0 Ft/Mile, 34.5 m/Km) 4.07% (214.7 Ft/Mile, 40.7 m/Km) 5.33% (281.7 Ft/Mile, 53.3 m/Km) 0:29 0:18
Post Bridge 173 2.21% (116.9 Ft/Mile, 22.1 m/Km) 3.54% (186.9 Ft/Mile, 35.4 m/Km) 4.18% (220.6 Ft/Mile, 41.8 m/Km) 0:23 0:14
Turn Around 192 1.89% (99.7 Ft/Mile, 18.9 m/Km) 3.69% (194.9 Ft/Mile, 36.9 m/Km) 4.15% (219.0 Ft/Mile, 41.5 m/Km) 0:22 0:14
Straight 651 2.70% (142.3 Ft/Mile, 27.0 m/Km) 3.73% (196.8 Ft/Mile, 37.3 m/Km) 4.60% (242.9 Ft/Mile, 46.0 m/Km) 0:25 0:15
Power Line 479 2.60% (137.3 Ft/Mile, 26.0 m/Km) 3.93% (207.7 Ft/Mile, 39.3 m/Km) 4.72% (249.1 Ft/Mile, 47.2 m/Km) 0:25 0:16
Mixed 3635 2.50% (132.2 Ft/Mile, 25.0 m/Km) 3.83% (202.5 Ft/Mile, 38.3 m/Km) 4.58% (241.8 Ft/Mile, 45.8 m/Km) 0:25 0:15
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) 0:21 0:13
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) 0:50 0:30
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) 0:45 0:27
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) 0:36 0:22
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) 0:15 0:09
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) 0:20 0:12
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) 0:27 0:16
TomTom GPS Sport Watch (provisional) Normal 318 3.18% (168.1 Ft/Mile, 31.8 m/Km) 3.85% (203.3 Ft/Mile, 38.5 m/Km) 5.00% (263.9 Ft/Mile, 50.0 m/Km) 0:27 0:16
Under Bridge 17 4.93% (260.3 Ft/Mile, 49.3 m/Km) 5.72% (301.8 Ft/Mile, 57.2 m/Km) 7.65% (403.8 Ft/Mile, 76.5 m/Km) 0:41 0:25
Post Bridge 15 4.25% (224.5 Ft/Mile, 42.5 m/Km) 2.78% (146.9 Ft/Mile, 27.8 m/Km) 5.21% (274.9 Ft/Mile, 52.1 m/Km) 0:28 0:17
Turn Around 23 7.43% (392.3 Ft/Mile, 74.3 m/Km) 2.74% (144.9 Ft/Mile, 27.4 m/Km) 8.08% (426.5 Ft/Mile, 80.8 m/Km) 0:44 0:27
Straight 75 1.92% (101.2 Ft/Mile, 19.2 m/Km) 4.12% (217.8 Ft/Mile, 41.2 m/Km) 4.55% (240.4 Ft/Mile, 45.5 m/Km) 0:25 0:15
Power Line 36 3.89% (205.5 Ft/Mile, 38.9 m/Km) 1.73% (91.2 Ft/Mile, 17.3 m/Km) 4.31% (227.5 Ft/Mile, 43.1 m/Km) 0:23 0:14
Mixed 373 3.57% (188.4 Ft/Mile, 35.7 m/Km) 3.99% (210.7 Ft/Mile, 39.9 m/Km) 5.36% (282.8 Ft/Mile, 53.6 m/Km) 0:29 0:18
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) 0:27 0:17
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) 0:14 0:08
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) 0:54 0:33
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) 0:57 0:35
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) 0:15 0:09
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) 0:26 0:16
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) 0:32 0:19
Garmin 620 Normal 1806 2.86% (151.0 Ft/Mile, 28.6 m/Km) 4.30% (227.0 Ft/Mile, 43.0 m/Km) 5.16% (272.7 Ft/Mile, 51.6 m/Km) 0:28 0:17
Under Bridge 101 1.08% (57.0 Ft/Mile, 10.8 m/Km) 7.54% (398.3 Ft/Mile, 75.4 m/Km) 7.62% (402.4 Ft/Mile, 76.2 m/Km) 0:41 0:25
Post Bridge 99 6.33% (334.0 Ft/Mile, 63.3 m/Km) 6.25% (330.2 Ft/Mile, 62.5 m/Km) 8.92% (470.9 Ft/Mile, 89.2 m/Km) 0:48 0:29
Turn Around 139 9.66% (510.1 Ft/Mile, 96.6 m/Km) 6.58% (347.7 Ft/Mile, 65.8 m/Km) 11.72% (618.9 Ft/Mile, 117.2 m/Km) 1:03 0:39
Straight 404 0.62% (32.7 Ft/Mile, 6.2 m/Km) 2.99% (157.8 Ft/Mile, 29.9 m/Km) 3.05% (161.1 Ft/Mile, 30.5 m/Km) 0:16 0:10
Power Line 237 2.88% (152.1 Ft/Mile, 28.8 m/Km) 3.70% (195.5 Ft/Mile, 37.0 m/Km) 4.69% (247.9 Ft/Mile, 46.9 m/Km) 0:25 0:15
Mixed 2145 3.38% (178.3 Ft/Mile, 33.8 m/Km) 5.12% (270.4 Ft/Mile, 51.2 m/Km) 6.13% (323.9 Ft/Mile, 61.3 m/Km) 0:33 0:20
Garmin Fenix 2 Normal 1614 1.53% (80.8 Ft/Mile, 15.3 m/Km) 5.40% (285.0 Ft/Mile, 54.0 m/Km) 5.61% (296.3 Ft/Mile, 56.1 m/Km) 0:30 0:19
Under Bridge 92 3.47% (183.1 Ft/Mile, 34.7 m/Km) 5.55% (292.8 Ft/Mile, 55.5 m/Km) 6.55% (345.8 Ft/Mile, 65.5 m/Km) 0:35 0:22
Post Bridge 90 7.67% (405.1 Ft/Mile, 76.7 m/Km) 4.45% (235.1 Ft/Mile, 44.5 m/Km) 8.91% (470.4 Ft/Mile, 89.1 m/Km) 0:48 0:29
Turn Around 119 9.14% (482.4 Ft/Mile, 91.4 m/Km) 4.77% (251.7 Ft/Mile, 47.7 m/Km) 10.34% (546.0 Ft/Mile, 103.4 m/Km) 0:56 0:34
Straight 361 0.98% (51.5 Ft/Mile, 9.8 m/Km) 4.48% (236.5 Ft/Mile, 44.8 m/Km) 4.59% (242.1 Ft/Mile, 45.9 m/Km) 0:25 0:15
Power Line 205 1.02% (53.6 Ft/Mile, 10.2 m/Km) 5.51% (291.0 Ft/Mile, 55.1 m/Km) 5.60% (295.9 Ft/Mile, 56.0 m/Km) 0:30 0:18
Mixed 1915 2.05% (108.4 Ft/Mile, 20.5 m/Km) 5.89% (310.8 Ft/Mile, 58.9 m/Km) 6.23% (329.1 Ft/Mile, 62.3 m/Km) 0:34 0:21

2 Condition then Devices

Condition Device Count Trueness
(Average Distance Error) 		Standard Deviation
(From mean) 		Standard Deviation
(From true) 		Average Pace Error
(from 9:00 min/mile) (from 5:30 min/Km)
Normal Footpod (calibrated) 3066 0.13% (7.0 Ft/Mile, 1.3 m/Km) 2.36% (124.4 Ft/Mile, 23.6 m/Km) 2.36% (124.6 Ft/Mile, 23.6 m/Km) 0:13 0:08
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) 0:14 0:09
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) 0:16 0:10
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) 0:17 0:10
Garmin 310XT with Footpod 3066 0.29% (15.2 Ft/Mile, 2.9 m/Km) 3.14% (166.0 Ft/Mile, 31.4 m/Km) 3.16% (166.7 Ft/Mile, 31.6 m/Km) 0:17 0:10
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) 0:18 0:11
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) 0:20 0:12
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) 0:20 0:12
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) 0:19 0:12
Footpod (uncalibrated) 3066 2.50% (131.8 Ft/Mile, 25.0 m/Km) 3.83% (202.4 Ft/Mile, 38.3 m/Km) 4.58% (241.6 Ft/Mile, 45.8 m/Km) 0:25 0:15
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) 0:21 0:13
TomTom GPS Sport Watch (provisional) 318 3.18% (168.1 Ft/Mile, 31.8 m/Km) 3.85% (203.3 Ft/Mile, 38.5 m/Km) 5.00% (263.9 Ft/Mile, 50.0 m/Km) 0:27 0:16
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) 0:27 0:17
Garmin 620 1806 2.86% (151.0 Ft/Mile, 28.6 m/Km) 4.30% (227.0 Ft/Mile, 43.0 m/Km) 5.16% (272.7 Ft/Mile, 51.6 m/Km) 0:28 0:17
Garmin Fenix 2 1614 1.53% (80.8 Ft/Mile, 15.3 m/Km) 5.40% (285.0 Ft/Mile, 54.0 m/Km) 5.61% (296.3 Ft/Mile, 56.1 m/Km) 0:30 0:19
All 22148 0.47% (24.9 Ft/Mile, 4.7 m/Km) 3.89% (205.2 Ft/Mile, 38.9 m/Km) 3.91% (206.7 Ft/Mile, 39.1 m/Km) 0:21 0:13
Under Bridge Footpod (calibrated) 204 1.16% (61.2 Ft/Mile, 11.6 m/Km) 2.16% (113.9 Ft/Mile, 21.6 m/Km) 2.45% (129.4 Ft/Mile, 24.5 m/Km) 0:13 0:08
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) 0:41 0:25
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) 0:17 0:10
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) 0:23 0:14
Garmin 310XT with Footpod 204 1.58% (83.3 Ft/Mile, 15.8 m/Km) 3.49% (184.1 Ft/Mile, 34.9 m/Km) 3.83% (202.2 Ft/Mile, 38.3 m/Km) 0:21 0:13
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) 0:16 0:10
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) 0:23 0:14
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) 0:18 0:11
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) 0:40 0:24
Footpod (uncalibrated) 204 3.45% (182.0 Ft/Mile, 34.5 m/Km) 4.07% (214.7 Ft/Mile, 40.7 m/Km) 5.33% (281.7 Ft/Mile, 53.3 m/Km) 0:29 0:18
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) 0:50 0:30
TomTom GPS Sport Watch (provisional) 17 4.93% (260.3 Ft/Mile, 49.3 m/Km) 5.72% (301.8 Ft/Mile, 57.2 m/Km) 7.65% (403.8 Ft/Mile, 76.5 m/Km) 0:41 0:25
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) 0:14 0:08
Garmin 620 101 1.08% (57.0 Ft/Mile, 10.8 m/Km) 7.54% (398.3 Ft/Mile, 75.4 m/Km) 7.62% (402.4 Ft/Mile, 76.2 m/Km) 0:41 0:25
Garmin Fenix 2 92 3.47% (183.1 Ft/Mile, 34.7 m/Km) 5.55% (292.8 Ft/Mile, 55.5 m/Km) 6.55% (345.8 Ft/Mile, 65.5 m/Km) 0:35 0:22
All 1449 0.65% (34.3 Ft/Mile, 6.5 m/Km) 5.18% (273.8 Ft/Mile, 51.8 m/Km) 5.23% (275.9 Ft/Mile, 52.3 m/Km) 0:28 0:17
Post Bridge Footpod (calibrated) 173 0.36% (19.2 Ft/Mile, 3.6 m/Km) 1.97% (103.9 Ft/Mile, 19.7 m/Km) 2.00% (105.6 Ft/Mile, 20.0 m/Km) 0:11 0:07
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) 0:14 0:09
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) 0:23 0:14
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) 0:14 0:09
Garmin 310XT with Footpod 173 2.53% (133.6 Ft/Mile, 25.3 m/Km) 3.32% (175.5 Ft/Mile, 33.2 m/Km) 4.18% (220.8 Ft/Mile, 41.8 m/Km) 0:23 0:14
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) 0:24 0:15
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) 0:25 0:15
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) 0:28 0:17
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) 0:19 0:11
Footpod (uncalibrated) 173 2.21% (116.9 Ft/Mile, 22.1 m/Km) 3.54% (186.9 Ft/Mile, 35.4 m/Km) 4.18% (220.6 Ft/Mile, 41.8 m/Km) 0:23 0:14
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) 0:45 0:27
TomTom GPS Sport Watch (provisional) 15 4.25% (224.5 Ft/Mile, 42.5 m/Km) 2.78% (146.9 Ft/Mile, 27.8 m/Km) 5.21% (274.9 Ft/Mile, 52.1 m/Km) 0:28 0:17
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) 0:54 0:33
Garmin 620 99 6.33% (334.0 Ft/Mile, 63.3 m/Km) 6.25% (330.2 Ft/Mile, 62.5 m/Km) 8.92% (470.9 Ft/Mile, 89.2 m/Km) 0:48 0:29
Garmin Fenix 2 90 7.67% (405.1 Ft/Mile, 76.7 m/Km) 4.45% (235.1 Ft/Mile, 44.5 m/Km) 8.91% (470.4 Ft/Mile, 89.1 m/Km) 0:48 0:29
All 1334 2.81% (148.6 Ft/Mile, 28.1 m/Km) 4.82% (254.3 Ft/Mile, 48.2 m/Km) 5.58% (294.6 Ft/Mile, 55.8 m/Km) 0:30 0:18
Turn Around Footpod (calibrated) 192 0.36% (19.0 Ft/Mile, 3.6 m/Km) 2.30% (121.5 Ft/Mile, 23.0 m/Km) 2.33% (123.0 Ft/Mile, 23.3 m/Km) 0:13 0:08
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) 0:20 0:12
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) 0:29 0:18
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) 0:25 0:15
Garmin 310XT with Footpod 192 3.64% (192.4 Ft/Mile, 36.4 m/Km) 3.56% (188.1 Ft/Mile, 35.6 m/Km) 5.10% (269.4 Ft/Mile, 51.0 m/Km) 0:28 0:17
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) 0:32 0:19
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) 0:35 0:22
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) 0:42 0:25
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) 0:42 0:26
Footpod (uncalibrated) 192 1.89% (99.7 Ft/Mile, 18.9 m/Km) 3.69% (194.9 Ft/Mile, 36.9 m/Km) 4.15% (219.0 Ft/Mile, 41.5 m/Km) 0:22 0:14
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) 0:36 0:22
TomTom GPS Sport Watch (provisional) 23 7.43% (392.3 Ft/Mile, 74.3 m/Km) 2.74% (144.9 Ft/Mile, 27.4 m/Km) 8.08% (426.5 Ft/Mile, 80.8 m/Km) 0:44 0:27
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) 0:57 0:35
Garmin 620 139 9.66% (510.1 Ft/Mile, 96.6 m/Km) 6.58% (347.7 Ft/Mile, 65.8 m/Km) 11.72% (618.9 Ft/Mile, 117.2 m/Km) 1:03 0:39
Garmin Fenix 2 119 9.14% (482.4 Ft/Mile, 91.4 m/Km) 4.77% (251.7 Ft/Mile, 47.7 m/Km) 10.34% (546.0 Ft/Mile, 103.4 m/Km) 0:56 0:34
All 1575 4.22% (222.6 Ft/Mile, 42.2 m/Km) 5.43% (286.6 Ft/Mile, 54.3 m/Km) 6.87% (363.0 Ft/Mile, 68.7 m/Km) 0:37 0:23
Straight Footpod (calibrated) 651 0.35% (18.6 Ft/Mile, 3.5 m/Km) 2.36% (124.5 Ft/Mile, 23.6 m/Km) 2.38% (125.9 Ft/Mile, 23.8 m/Km) 0:13 0:08
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) 0:09 0:06
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) 0:09 0:06
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) 0:16 0:10
Garmin 310XT with Footpod 651 0.98% (52.0 Ft/Mile, 9.8 m/Km) 2.31% (121.9 Ft/Mile, 23.1 m/Km) 2.51% (132.5 Ft/Mile, 25.1 m/Km) 0:14 0:08
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) 0:11 0:07
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) 0:15 0:09
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) 0:14 0:09
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) 0:14 0:09
Footpod (uncalibrated) 651 2.70% (142.3 Ft/Mile, 27.0 m/Km) 3.73% (196.8 Ft/Mile, 37.3 m/Km) 4.60% (242.9 Ft/Mile, 46.0 m/Km) 0:25 0:15
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) 0:15 0:09
TomTom GPS Sport Watch (provisional) 75 1.92% (101.2 Ft/Mile, 19.2 m/Km) 4.12% (217.8 Ft/Mile, 41.2 m/Km) 4.55% (240.4 Ft/Mile, 45.5 m/Km) 0:25 0:15
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) 0:15 0:09
Garmin 620 404 0.62% (32.7 Ft/Mile, 6.2 m/Km) 2.99% (157.8 Ft/Mile, 29.9 m/Km) 3.05% (161.1 Ft/Mile, 30.5 m/Km) 0:16 0:10
Garmin Fenix 2 361 0.98% (51.5 Ft/Mile, 9.8 m/Km) 4.48% (236.5 Ft/Mile, 44.8 m/Km) 4.59% (242.1 Ft/Mile, 45.9 m/Km) 0:25 0:15
All 4768 0.74% (38.9 Ft/Mile, 7.4 m/Km) 3.04% (160.5 Ft/Mile, 30.4 m/Km) 3.13% (165.1 Ft/Mile, 31.3 m/Km) 0:17 0:10
Power Line Footpod (calibrated) 479 0.19% (10.1 Ft/Mile, 1.9 m/Km) 2.34% (123.8 Ft/Mile, 23.4 m/Km) 2.35% (124.2 Ft/Mile, 23.5 m/Km) 0:13 0:08
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) 0:13 0:08
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) 0:15 0:09
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) 0:15 0:09
Garmin 310XT with Footpod 479 0.63% (33.4 Ft/Mile, 6.3 m/Km) 3.07% (162.2 Ft/Mile, 30.7 m/Km) 3.14% (165.7 Ft/Mile, 31.4 m/Km) 0:17 0:10
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) 0:15 0:09
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) 0:19 0:11
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) 0:22 0:14
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) 0:27 0:16
Footpod (uncalibrated) 479 2.60% (137.3 Ft/Mile, 26.0 m/Km) 3.93% (207.7 Ft/Mile, 39.3 m/Km) 4.72% (249.1 Ft/Mile, 47.2 m/Km) 0:25 0:16
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) 0:20 0:12
TomTom GPS Sport Watch (provisional) 36 3.89% (205.5 Ft/Mile, 38.9 m/Km) 1.73% (91.2 Ft/Mile, 17.3 m/Km) 4.31% (227.5 Ft/Mile, 43.1 m/Km) 0:23 0:14
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) 0:26 0:16
Garmin 620 237 2.88% (152.1 Ft/Mile, 28.8 m/Km) 3.70% (195.5 Ft/Mile, 37.0 m/Km) 4.69% (247.9 Ft/Mile, 46.9 m/Km) 0:25 0:15
Garmin Fenix 2 205 1.02% (53.6 Ft/Mile, 10.2 m/Km) 5.51% (291.0 Ft/Mile, 55.1 m/Km) 5.60% (295.9 Ft/Mile, 56.0 m/Km) 0:30 0:18
All 3171 0.58% (30.4 Ft/Mile, 5.8 m/Km) 3.76% (198.4 Ft/Mile, 37.6 m/Km) 3.80% (200.7 Ft/Mile, 38.0 m/Km) 0:21 0:13
Mixed Footpod (calibrated) 3635 0.18% (9.3 Ft/Mile, 1.8 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 2.35% (123.9 Ft/Mile, 23.5 m/Km) 0:13 0:08
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) 0:17 0:10
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) 0:17 0:11
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) 0:18 0:11
Garmin 310XT with Footpod 3635 0.64% (34.0 Ft/Mile, 6.4 m/Km) 3.32% (175.1 Ft/Mile, 33.2 m/Km) 3.38% (178.4 Ft/Mile, 33.8 m/Km) 0:18 0:11
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) 0:19 0:12
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) 0:22 0:13
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) 0:23 0:14
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) 0:23 0:14
Footpod (uncalibrated) 3635 2.50% (132.2 Ft/Mile, 25.0 m/Km) 3.83% (202.5 Ft/Mile, 38.3 m/Km) 4.58% (241.8 Ft/Mile, 45.8 m/Km) 0:25 0:15
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) 0:27 0:16
TomTom GPS Sport Watch (provisional) 373 3.57% (188.4 Ft/Mile, 35.7 m/Km) 3.99% (210.7 Ft/Mile, 39.9 m/Km) 5.36% (282.8 Ft/Mile, 53.6 m/Km) 0:29 0:18
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) 0:32 0:19
Garmin 620 2145 3.38% (178.3 Ft/Mile, 33.8 m/Km) 5.12% (270.4 Ft/Mile, 51.2 m/Km) 6.13% (323.9 Ft/Mile, 61.3 m/Km) 0:33 0:20
Garmin Fenix 2 1915 2.05% (108.4 Ft/Mile, 20.5 m/Km) 5.89% (310.8 Ft/Mile, 58.9 m/Km) 6.23% (329.1 Ft/Mile, 62.3 m/Km) 0:34 0:21
All 26506 0.75% (39.6 Ft/Mile, 7.5 m/Km) 4.25% (224.6 Ft/Mile, 42.5 m/Km) 4.32% (228.1 Ft/Mile, 43.2 m/Km) 0:23 0:14
Retrieved from "http://fellrnr.com/mediawiki/index.php?title=GPS_Accuracy-breakdown&oldid=5307"