GPS Accuracy-statistics

Device	Count	Accuracy (Combined)	Trueness (Average Distance Error)	Standard Deviation (From mean)	Standard Deviation (From true)	Repeatability	Pace Error (95%)		Distance Error
							(from 9:00 min/mile)	(from 5:30 min/Km)	(20 miles)	(30 Km)
Footpod (calibrated)	3665	1.75% (92.2 Ft/Mile, 17.5 m/Km)	0.28% (14.6 Ft/Mile, 2.8 m/Km)	2.37% (125.1 Ft/Mile, 23.7 m/Km)	2.45% (129.6 Ft/Mile, 24.5 m/Km)	0:27	0:16	0.06	0.08
Polar V800	1969	1.87% (98.8 Ft/Mile, 18.7 m/Km)	0.29% (15.1 Ft/Mile, 2.9 m/Km)	1.94% (102.4 Ft/Mile, 19.4 m/Km)	2.63% (138.9 Ft/Mile, 26.3 m/Km)	0:28	0:17	0.06	0.09
Suunto Ambit3 Run	1284	2.08% (109.7 Ft/Mile, 20.8 m/Km)	0.43% (22.4 Ft/Mile, 4.3 m/Km)	2.17% (114.8 Ft/Mile, 21.7 m/Km)	2.91% (153.4 Ft/Mile, 29.1 m/Km)	0:31	0:19	0.09	0.13
iPhone 5s	514	2.09% (110.3 Ft/Mile, 20.9 m/Km)	0.30% (15.7 Ft/Mile, 3.0 m/Km)	2.35% (124.1 Ft/Mile, 23.5 m/Km)	2.94% (155.2 Ft/Mile, 29.4 m/Km)	0:32	0:19	0.06	0.09
Suunto Ambit2 R 2.0.11	1048	2.41% (127.4 Ft/Mile, 24.1 m/Km)	1.50% (79.1 Ft/Mile, 15.0 m/Km)	2.22% (117.2 Ft/Mile, 22.2 m/Km)	3.06% (161.8 Ft/Mile, 30.6 m/Km)	0:33	0:20	0.30	0.45
Garmin 205	1173	2.46% (129.8 Ft/Mile, 24.6 m/Km)	0.35% (18.6 Ft/Mile, 3.5 m/Km)	3.10% (163.7 Ft/Mile, 31.0 m/Km)	3.46% (182.6 Ft/Mile, 34.6 m/Km)	0:37	0:23	0.07	0.11
Garmin 910XT with Footpod	731	2.50% (132.1 Ft/Mile, 25.0 m/Km)	1.26% (66.6 Ft/Mile, 12.6 m/Km)	2.42% (128.0 Ft/Mile, 24.2 m/Km)	3.31% (174.6 Ft/Mile, 33.1 m/Km)	0:36	0:22	0.25	0.38
iPhone 4s	952	2.51% (132.3 Ft/Mile, 25.1 m/Km)	1.02% (54.0 Ft/Mile, 10.2 m/Km)	2.82% (148.8 Ft/Mile, 28.2 m/Km)	3.39% (179.1 Ft/Mile, 33.9 m/Km)	0:37	0:22	0.20	0.31
Garmin 310XT with Footpod	3665	2.51% (132.6 Ft/Mile, 25.1 m/Km)	0.62% (32.6 Ft/Mile, 6.2 m/Km)	3.04% (160.5 Ft/Mile, 30.4 m/Km)	3.50% (184.6 Ft/Mile, 35.0 m/Km)	0:38	0:23	0.12	0.19
iPhone 5s (Alt)	656	2.53% (133.7 Ft/Mile, 25.3 m/Km)	1.16% (61.4 Ft/Mile, 11.6 m/Km)	2.52% (133.1 Ft/Mile, 25.2 m/Km)	3.39% (178.9 Ft/Mile, 33.9 m/Km)	0:37	0:22	0.23	0.35
Leikr	682	2.71% (143.3 Ft/Mile, 27.1 m/Km)	1.15% (60.7 Ft/Mile, 11.5 m/Km)	2.80% (147.7 Ft/Mile, 28.0 m/Km)	3.66% (193.3 Ft/Mile, 36.6 m/Km)	0:40	0:24	0.23	0.34
Garmin 610	2088	2.77% (146.4 Ft/Mile, 27.7 m/Km)	1.71% (90.1 Ft/Mile, 17.1 m/Km)	2.27% (120.0 Ft/Mile, 22.7 m/Km)	3.53% (186.5 Ft/Mile, 35.3 m/Km)	0:38	0:23	0.34	0.51
Garmin 310XT no Footpod	1971	2.89% (152.6 Ft/Mile, 28.9 m/Km)	0.84% (44.2 Ft/Mile, 8.4 m/Km)	3.61% (190.7 Ft/Mile, 36.1 m/Km)	4.00% (211.3 Ft/Mile, 40.0 m/Km)	0:43	0:26	0.17	0.25
Garmin 620 (3.30)	1130	2.98% (157.2 Ft/Mile, 29.8 m/Km)	1.80% (94.9 Ft/Mile, 18.0 m/Km)	2.82% (149.0 Ft/Mile, 28.2 m/Km)	3.81% (201.0 Ft/Mile, 38.1 m/Km)	0:41	0:25	0.36	0.54
Suunto Ambit2 R 2.0.7	1023	3.08% (162.5 Ft/Mile, 30.8 m/Km)	1.03% (54.6 Ft/Mile, 10.3 m/Km)	2.80% (147.6 Ft/Mile, 28.0 m/Km)	4.23% (223.2 Ft/Mile, 42.3 m/Km)	0:46	0:28	0.21	0.31
Samsung Galaxy S3	836	3.19% (168.2 Ft/Mile, 31.9 m/Km)	1.39% (73.1 Ft/Mile, 13.9 m/Km)	3.01% (158.7 Ft/Mile, 30.1 m/Km)	4.29% (226.4 Ft/Mile, 42.9 m/Km)	0:46	0:28	0.28	0.42
TomTom Cardio Runner (1.8.42)	777	3.21% (169.5 Ft/Mile, 32.1 m/Km)	2.31% (121.9 Ft/Mile, 23.1 m/Km)	2.05% (108.3 Ft/Mile, 20.5 m/Km)	3.91% (206.5 Ft/Mile, 39.1 m/Km)	0:42	0:26	0.46	0.69
Garmin 920XT	853	3.33% (175.7 Ft/Mile, 33.3 m/Km)	2.44% (129.0 Ft/Mile, 24.4 m/Km)	2.47% (130.6 Ft/Mile, 24.7 m/Km)	4.02% (212.3 Ft/Mile, 40.2 m/Km)	0:43	0:27	0.49	0.73
Footpod (uncalibrated)	3665	3.70% (195.4 Ft/Mile, 37.0 m/Km)	2.50% (132.1 Ft/Mile, 25.0 m/Km)	3.80% (200.7 Ft/Mile, 38.0 m/Km)	4.60% (242.7 Ft/Mile, 46.0 m/Km)	0:50	0:30	0.50	0.75
Polar RC3 GPS	1126	3.75% (197.9 Ft/Mile, 37.5 m/Km)	1.73% (91.2 Ft/Mile, 17.3 m/Km)	3.82% (201.6 Ft/Mile, 38.2 m/Km)	5.01% (264.6 Ft/Mile, 50.1 m/Km)	0:54	0:33	0.35	0.52
Garmin Epix with GLONAS+WAAS	598	3.82% (201.5 Ft/Mile, 38.2 m/Km)	2.59% (136.7 Ft/Mile, 25.9 m/Km)	2.59% (136.6 Ft/Mile, 25.9 m/Km)	4.74% (250.1 Ft/Mile, 47.4 m/Km)	0:51	0:31	0.52	0.78
Garmin 225	965	3.82% (201.8 Ft/Mile, 38.2 m/Km)	2.73% (143.9 Ft/Mile, 27.3 m/Km)	2.91% (153.8 Ft/Mile, 29.1 m/Km)	4.67% (246.4 Ft/Mile, 46.7 m/Km)	0:50	0:31	0.55	0.82
Garmin Epix with WAAS	609	3.95% (208.4 Ft/Mile, 39.5 m/Km)	2.44% (128.8 Ft/Mile, 24.4 m/Km)	3.33% (175.7 Ft/Mile, 33.3 m/Km)	5.02% (265.1 Ft/Mile, 50.2 m/Km)	0:54	0:33	0.49	0.73
TomTom Cardio Runner (1.8.5)	949	3.97% (209.5 Ft/Mile, 39.7 m/Km)	3.23% (170.3 Ft/Mile, 32.3 m/Km)	2.48% (130.8 Ft/Mile, 24.8 m/Km)	4.59% (242.5 Ft/Mile, 45.9 m/Km)	0:50	0:30	0.65	0.97
Garmin Fenix 2 (3.30)	1111	4.36% (230.2 Ft/Mile, 43.6 m/Km)	2.73% (144.3 Ft/Mile, 27.3 m/Km)	2.87% (151.5 Ft/Mile, 28.7 m/Km)	5.53% (291.9 Ft/Mile, 55.3 m/Km)	0:60	0:36	0.55	0.82
Garmin 920XT (GLONASS)	831	4.43% (233.7 Ft/Mile, 44.3 m/Km)	3.44% (181.7 Ft/Mile, 34.4 m/Km)	2.78% (146.7 Ft/Mile, 27.8 m/Km)	5.23% (276.0 Ft/Mile, 52.3 m/Km)	0:56	0:35	0.69	1.03
Garmin Epix	592	4.59% (242.5 Ft/Mile, 45.9 m/Km)	3.24% (171.1 Ft/Mile, 32.4 m/Km)	3.23% (170.3 Ft/Mile, 32.3 m/Km)	5.63% (297.3 Ft/Mile, 56.3 m/Km)	1:01	0:37	0.65	0.97
Garmin 620 (pre-v3.30)	3259	4.88% (257.9 Ft/Mile, 48.8 m/Km)	3.21% (169.5 Ft/Mile, 32.1 m/Km)	4.55% (240.3 Ft/Mile, 45.5 m/Km)	6.12% (323.0 Ft/Mile, 61.2 m/Km)	1:06	0:40	0.64	0.96
Garmin 10	1049	4.90% (258.7 Ft/Mile, 49.0 m/Km)	3.78% (199.6 Ft/Mile, 37.8 m/Km)	3.08% (162.7 Ft/Mile, 30.8 m/Km)	5.81% (306.7 Ft/Mile, 58.1 m/Km)	1:03	0:38	0.76	1.13
Garmin Fenix 2 (pre-v3.30)	4318	5.10% (269.3 Ft/Mile, 51.0 m/Km)	2.68% (141.4 Ft/Mile, 26.8 m/Km)	4.64% (245.0 Ft/Mile, 46.4 m/Km)	6.70% (353.6 Ft/Mile, 67.0 m/Km)	1:12	0:44	0.54	0.80
Polar M400	1435	5.84% (308.4 Ft/Mile, 58.4 m/Km)	4.57% (241.4 Ft/Mile, 45.7 m/Km)	3.45% (182.1 Ft/Mile, 34.5 m/Km)	6.88% (363.3 Ft/Mile, 68.8 m/Km)	1:14	0:45	0.91	1.37