GPS Accuracy-statistics

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Device Count Accuracy
(Combined)
Trueness
(Average Distance Error)
Precision
(From mean)
Precision
(From true)
Repeatability Pace Error (95%) Distance Error
(from 9:00 min/mile) (from 5:30 min/Km) (20 miles) (30 Km)
Stryd Footpod (uncalibrated) 321 0.62% (32.8 Ft/Mile, 6.2 m/Km) 0.29% (15.2 Ft/Mile, 2.9 m/Km) 0.77% (40.8 Ft/Mile, 7.7 m/Km) 0.83% (43.8 Ft/Mile, 8.3 m/Km) 0.73% (38.6 Ft/Mile, 7.3 m/Km) 0:09 0:05 0.06 0.09
Adidas Speed Cell FP (calibrated) 361 1.43% (75.7 Ft/Mile, 14.3 m/Km) 0.34% (17.9 Ft/Mile, 3.4 m/Km) 1.97% (103.9 Ft/Mile, 19.7 m/Km) 2.00% (105.6 Ft/Mile, 20.0 m/Km) 1.78% (94.2 Ft/Mile, 17.8 m/Km) 0:22 0:13 0.07 0.10
Garmin Footpod (calibrated) 3667 1.75% (92.6 Ft/Mile, 17.5 m/Km) 0.28% (14.7 Ft/Mile, 2.8 m/Km) 2.45% (129.3 Ft/Mile, 24.5 m/Km) 2.47% (130.2 Ft/Mile, 24.7 m/Km) 2.38% (125.6 Ft/Mile, 23.8 m/Km) 0:27 0:16 0.06 0.08
MilestonePod Footpod (calibrated) 439 1.86% (98.1 Ft/Mile, 18.6 m/Km)** 0.19% (10.1 Ft/Mile, 1.9 m/Km) 2.61% (138.0 Ft/Mile, 26.1 m/Km) 2.62% (138.4 Ft/Mile, 26.2 m/Km) 2.33% (123.2 Ft/Mile, 23.3 m/Km) 0:28 0:17 0.04 0.06
Polar V800 1986 1.87% (98.8 Ft/Mile, 18.7 m/Km)***** 0.29% (15.2 Ft/Mile, 2.9 m/Km) 2.61% (138.0 Ft/Mile, 26.1 m/Km) 2.63% (138.8 Ft/Mile, 26.3 m/Km) 1.94% (102.4 Ft/Mile, 19.4 m/Km) 0:28 0:17 0.06 0.09
Suunto Ambit3 Run 1261 2.08% (110.1 Ft/Mile, 20.8 m/Km)***** 0.44% (23.2 Ft/Mile, 4.4 m/Km) 2.88% (152.1 Ft/Mile, 28.8 m/Km) 2.92% (153.9 Ft/Mile, 29.2 m/Km) 2.17% (114.8 Ft/Mile, 21.7 m/Km) 0:31 0:19 0.09 0.13
iPhone 5s 513 2.09% (110.4 Ft/Mile, 20.9 m/Km) 0.30% (15.8 Ft/Mile, 3.0 m/Km) 2.93% (154.5 Ft/Mile, 29.3 m/Km) 2.94% (155.3 Ft/Mile, 29.4 m/Km) 2.35% (124.2 Ft/Mile, 23.5 m/Km) 0:32 0:19 0.06 0.09
Suunto Spartan Trainer 1.10.28 590 2.17% (114.8 Ft/Mile, 21.7 m/Km)***** 1.25% (65.8 Ft/Mile, 12.5 m/Km) 2.50% (132.0 Ft/Mile, 25.0 m/Km) 2.81% (148.4 Ft/Mile, 28.1 m/Km) 1.99% (105.3 Ft/Mile, 19.9 m/Km) 0:30 0:19 0.25 0.37
Polar Stride Sensor Footpod (calibrated) 309 2.33% (123.2 Ft/Mile, 23.3 m/Km)***** 1.46% (77.1 Ft/Mile, 14.6 m/Km) 2.53% (133.4 Ft/Mile, 25.3 m/Km) 2.96% (156.2 Ft/Mile, 29.6 m/Km) 2.05% (108.1 Ft/Mile, 20.5 m/Km) 0:32 0:20 0.29 0.44
Garmin 205 1155 2.36% (124.4 Ft/Mile, 23.6 m/Km)***** 0.34% (17.7 Ft/Mile, 3.4 m/Km) 3.30% (174.1 Ft/Mile, 33.0 m/Km) 3.32% (175.1 Ft/Mile, 33.2 m/Km) 2.97% (156.9 Ft/Mile, 29.7 m/Km) 0:36 0:22 0.07 0.10
Suunto Ambit2 R 1025 2.41% (127.4 Ft/Mile, 24.1 m/Km)***** 1.49% (78.8 Ft/Mile, 14.9 m/Km) 2.67% (140.9 Ft/Mile, 26.7 m/Km) 3.07% (162.0 Ft/Mile, 30.7 m/Km) 2.22% (117.5 Ft/Mile, 22.2 m/Km) 0:33 0:20 0.30 0.45
Garmin 910XT 701 2.46% (129.9 Ft/Mile, 24.6 m/Km)***** 1.22% (64.3 Ft/Mile, 12.2 m/Km) 3.01% (158.9 Ft/Mile, 30.1 m/Km) 3.26% (172.1 Ft/Mile, 32.6 m/Km) 2.40% (126.5 Ft/Mile, 24.0 m/Km) 0:35 0:22 0.24 0.37
iPhone 4s 945 2.51% (132.4 Ft/Mile, 25.1 m/Km)***** 1.01% (53.6 Ft/Mile, 10.1 m/Km) 3.24% (171.0 Ft/Mile, 32.4 m/Km) 3.40% (179.5 Ft/Mile, 34.0 m/Km) 2.83% (149.2 Ft/Mile, 28.3 m/Km) 0:37 0:22 0.20 0.30
Garmin 310XT 4801 2.69% (142.2 Ft/Mile, 26.9 m/Km)***** 0.61% (32.0 Ft/Mile, 6.1 m/Km) 3.71% (195.9 Ft/Mile, 37.1 m/Km) 3.76% (198.5 Ft/Mile, 37.6 m/Km) 3.35% (176.9 Ft/Mile, 33.5 m/Km) 0:41 0:25 0.12 0.18
Leikr 650 2.71% (143.3 Ft/Mile, 27.1 m/Km)***** 1.12% (59.1 Ft/Mile, 11.2 m/Km) 3.49% (184.2 Ft/Mile, 34.9 m/Km) 3.67% (193.9 Ft/Mile, 36.7 m/Km) 2.84% (150.1 Ft/Mile, 28.4 m/Km) 0:40 0:24 0.22 0.34
Garmin 610 997 2.75% (145.1 Ft/Mile, 27.5 m/Km)***** 1.66% (87.5 Ft/Mile, 16.6 m/Km) 3.08% (162.8 Ft/Mile, 30.8 m/Km) 3.51% (185.6 Ft/Mile, 35.1 m/Km) 2.29% (121.0 Ft/Mile, 22.9 m/Km) 0:38 0:23 0.33 0.50
Polar M430 1.0.28 589 2.85% (150.4 Ft/Mile, 28.5 m/Km)***** 1.06% (56.0 Ft/Mile, 10.6 m/Km) 3.73% (196.7 Ft/Mile, 37.3 m/Km) 3.88% (205.1 Ft/Mile, 38.8 m/Km) 2.81% (148.4 Ft/Mile, 28.1 m/Km) 0:42 0:26 0.21 0.32
Suunto Spartan Ultra 379 2.86% (150.9 Ft/Mile, 28.6 m/Km)** 0.50% (26.3 Ft/Mile, 5.0 m/Km) 3.98% (210.0 Ft/Mile, 39.8 m/Km) 4.01% (211.8 Ft/Mile, 40.1 m/Km) 2.63% (138.8 Ft/Mile, 26.3 m/Km) 0:43 0:26 0.10 0.15
Garmin 620 1039 2.93% (154.7 Ft/Mile, 29.3 m/Km)***** 1.75% (92.5 Ft/Mile, 17.5 m/Km) 3.30% (174.4 Ft/Mile, 33.0 m/Km) 3.76% (198.3 Ft/Mile, 37.6 m/Km) 2.79% (147.3 Ft/Mile, 27.9 m/Km) 0:41 0:25 0.35 0.53
Apple Watch 3 iSmoothRun 308 2.97% (156.8 Ft/Mile, 29.7 m/Km)** 1.09% (57.8 Ft/Mile, 10.9 m/Km) 3.88% (205.1 Ft/Mile, 38.8 m/Km) 4.05% (214.0 Ft/Mile, 40.5 m/Km) 3.03% (160.0 Ft/Mile, 30.3 m/Km) 0:44 0:27 0.22 0.33
Samsung Galaxy S3 845 3.19% (168.4 Ft/Mile, 31.9 m/Km)***** 1.38% (72.8 Ft/Mile, 13.8 m/Km) 4.05% (214.0 Ft/Mile, 40.5 m/Km) 4.29% (226.7 Ft/Mile, 42.9 m/Km) 3.02% (159.2 Ft/Mile, 30.2 m/Km) 0:46 0:28 0.28 0.41
Polar M400 v1.9.600 384 3.38% (178.5 Ft/Mile, 33.8 m/Km)***** 1.79% (94.5 Ft/Mile, 17.9 m/Km) 4.02% (212.2 Ft/Mile, 40.2 m/Km) 4.43% (234.0 Ft/Mile, 44.3 m/Km) 2.91% (153.5 Ft/Mile, 29.1 m/Km) 0:48 0:29 0.36 0.54
Garmin 920XT 858 3.39% (179.1 Ft/Mile, 33.9 m/Km)***** 2.51% (132.4 Ft/Mile, 25.1 m/Km) 3.19% (168.4 Ft/Mile, 31.9 m/Km) 4.09% (216.0 Ft/Mile, 40.9 m/Km) 2.48% (131.1 Ft/Mile, 24.8 m/Km) 0:44 0:27 0.50 0.75
TomTom Cardio Runner 759 3.44% (181.7 Ft/Mile, 34.4 m/Km)***** 2.36% (124.8 Ft/Mile, 23.6 m/Km) 3.50% (185.0 Ft/Mile, 35.0 m/Km) 4.25% (224.6 Ft/Mile, 42.5 m/Km) 2.54% (134.0 Ft/Mile, 25.4 m/Km) 0:46 0:28 0.47 0.71
Garmin 225 855 3.75% (198.1 Ft/Mile, 37.5 m/Km)***** 2.67% (141.1 Ft/Mile, 26.7 m/Km) 3.68% (194.4 Ft/Mile, 36.8 m/Km) 4.58% (242.0 Ft/Mile, 45.8 m/Km) 2.87% (151.7 Ft/Mile, 28.7 m/Km) 0:49 0:30 0.53 0.80
Garmin Fenix 3 1019 3.75% (198.1 Ft/Mile, 37.5 m/Km)***** 2.44% (129.1 Ft/Mile, 24.4 m/Km) 4.00% (211.3 Ft/Mile, 40.0 m/Km) 4.71% (248.7 Ft/Mile, 47.1 m/Km) 3.21% (169.5 Ft/Mile, 32.1 m/Km) 0:51 0:31 0.49 0.73
Polar RC3 GPS 1104 3.95% (208.5 Ft/Mile, 39.5 m/Km)***** 1.78% (93.9 Ft/Mile, 17.8 m/Km) 4.98% (262.7 Ft/Mile, 49.8 m/Km) 5.29% (279.5 Ft/Mile, 52.9 m/Km) 4.07% (214.8 Ft/Mile, 40.7 m/Km) 0:57 0:35 0.36 0.53
Garmin Fenix 2 1044 4.34% (229.3 Ft/Mile, 43.4 m/Km)***** 2.77% (146.0 Ft/Mile, 27.7 m/Km) 4.70% (248.3 Ft/Mile, 47.0 m/Km) 5.48% (289.5 Ft/Mile, 54.8 m/Km) 2.84% (150.1 Ft/Mile, 28.4 m/Km) 0:59 0:36 0.55 0.83
Fenix 5X 4.30 310 4.44% (234.5 Ft/Mile, 44.4 m/Km)***** 3.12% (164.6 Ft/Mile, 31.2 m/Km) 4.33% (228.7 Ft/Mile, 43.3 m/Km) 5.45% (287.9 Ft/Mile, 54.5 m/Km) 3.24% (171.1 Ft/Mile, 32.4 m/Km) 0:59 0:36 0.62 0.94
Garmin 935 345 4.45% (234.7 Ft/Mile, 44.5 m/Km)***** 3.23% (170.7 Ft/Mile, 32.3 m/Km) 4.19% (221.1 Ft/Mile, 41.9 m/Km) 5.39% (284.7 Ft/Mile, 53.9 m/Km) 2.84% (150.1 Ft/Mile, 28.4 m/Km) 0:58 0:36 0.65 0.97
Epson SF-810 627 4.57% (241.1 Ft/Mile, 45.7 m/Km)***** 2.72% (143.7 Ft/Mile, 27.2 m/Km) 5.14% (271.4 Ft/Mile, 51.4 m/Km) 5.86% (309.3 Ft/Mile, 58.6 m/Km) 4.27% (225.5 Ft/Mile, 42.7 m/Km) 1:03 0:39 0.54 0.82
Garmin Epix 592 4.59% (242.5 Ft/Mile, 45.9 m/Km)***** 3.24% (171.1 Ft/Mile, 32.4 m/Km) 4.54% (239.6 Ft/Mile, 45.4 m/Km) 5.63% (297.3 Ft/Mile, 56.3 m/Km) 3.23% (170.3 Ft/Mile, 32.3 m/Km) 1:01 0:37 0.65 0.97
Garmin 10 1050 4.95% (261.2 Ft/Mile, 49.5 m/Km)***** 3.80% (200.7 Ft/Mile, 38.0 m/Km) 4.43% (233.8 Ft/Mile, 44.3 m/Km) 5.87% (310.2 Ft/Mile, 58.7 m/Km) 3.15% (166.3 Ft/Mile, 31.5 m/Km) 1:03 0:39 0.76 1.14
Garmin Vivoactive 598 4.96% (262.1 Ft/Mile, 49.6 m/Km)***** 3.78% (199.4 Ft/Mile, 37.8 m/Km) 4.46% (235.2 Ft/Mile, 44.6 m/Km) 5.92% (312.5 Ft/Mile, 59.2 m/Km) 3.44% (181.7 Ft/Mile, 34.4 m/Km) 1:04 0:39 0.76 1.13
Garmin 235 899 5.08% (268.1 Ft/Mile, 50.8 m/Km)***** 3.93% (207.3 Ft/Mile, 39.3 m/Km) 4.49% (236.9 Ft/Mile, 44.9 m/Km) 6.01% (317.4 Ft/Mile, 60.1 m/Km) 3.59% (189.3 Ft/Mile, 35.9 m/Km) 1:05 0:40 0.79 1.18
Garmin VivoactiveHR 929 5.10% (269.5 Ft/Mile, 51.0 m/Km)***** 4.02% (212.5 Ft/Mile, 40.2 m/Km) 4.37% (230.8 Ft/Mile, 43.7 m/Km) 5.99% (316.3 Ft/Mile, 59.9 m/Km) 3.05% (161.1 Ft/Mile, 30.5 m/Km) 1:05 0:40 0.80 1.21
Garmin Vivoactive 3 445 5.52% (291.5 Ft/Mile, 55.2 m/Km)***** 4.25% (224.3 Ft/Mile, 42.5 m/Km) 4.85% (256.3 Ft/Mile, 48.5 m/Km) 6.55% (345.9 Ft/Mile, 65.5 m/Km) 3.54% (186.9 Ft/Mile, 35.4 m/Km) 1:11 0:43 0.85 1.27
Polar M400 v1.4 1367 5.56% (293.7 Ft/Mile, 55.6 m/Km)***** 4.28% (226.1 Ft/Mile, 42.8 m/Km) 4.98% (262.8 Ft/Mile, 49.8 m/Km) 6.60% (348.5 Ft/Mile, 66.0 m/Km) 3.46% (182.8 Ft/Mile, 34.6 m/Km) 1:11 0:44 0.86 1.28
Epson SF-510 539 5.67% (299.5 Ft/Mile, 56.7 m/Km)***** 3.94% (207.9 Ft/Mile, 39.4 m/Km) 5.69% (300.4 Ft/Mile, 56.9 m/Km) 6.99% (369.0 Ft/Mile, 69.9 m/Km) 4.60% (243.0 Ft/Mile, 46.0 m/Km) 1:15 0:46 0.79 1.18