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)	3255	1.79% (94.3 Ft/Mile, 17.9 m/Km)	0.18% (9.4 Ft/Mile, 1.8 m/Km)	2.51% (132.7 Ft/Mile, 25.1 m/Km)	2.52% (133.0 Ft/Mile, 25.2 m/Km)	2.45% (129.2 Ft/Mile, 24.5 m/Km)	0:27	0:17	0.04	0.05
Polar V800	2007	1.96% (103.3 Ft/Mile, 19.6 m/Km)	0.26% (13.7 Ft/Mile, 2.6 m/Km)	2.74% (144.8 Ft/Mile, 27.4 m/Km)	2.75% (145.4 Ft/Mile, 27.5 m/Km)	2.13% (112.4 Ft/Mile, 21.3 m/Km)	0:30	0:18	0.05	0.08
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
Garmin 205	1152	2.36% (124.5 Ft/Mile, 23.6 m/Km)	0.34% (18.1 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% (156.6 Ft/Mile, 29.7 m/Km)	0:36	0:22	0.07	0.10
Suunto Ambit2 R 2.0.11	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 with Footpod	695	2.47% (130.4 Ft/Mile, 24.7 m/Km)	1.23% (64.9 Ft/Mile, 12.3 m/Km)	3.01% (159.1 Ft/Mile, 30.1 m/Km)	3.27% (172.5 Ft/Mile, 32.7 m/Km)	2.41% (127.1 Ft/Mile, 24.1 m/Km)	0:35	0:22	0.25	0.37
iPhone 4s	947	2.51% (132.4 Ft/Mile, 25.1 m/Km)	1.01% (53.4 Ft/Mile, 10.1 m/Km)	3.24% (171.0 Ft/Mile, 32.4 m/Km)	3.40% (179.4 Ft/Mile, 34.0 m/Km)	2.83% (149.2 Ft/Mile, 28.3 m/Km)	0:37	0:22	0.20	0.30
iPhone 5s (Alt)	656	2.53% (133.7 Ft/Mile, 25.3 m/Km)	1.16% (61.4 Ft/Mile, 11.6 m/Km)	3.17% (167.4 Ft/Mile, 31.7 m/Km)	3.39% (178.9 Ft/Mile, 33.9 m/Km)	2.52% (133.1 Ft/Mile, 25.2 m/Km)	0:37	0:22	0.23	0.35
Garmin 310XT with Footpod	3255	2.55% (134.5 Ft/Mile, 25.5 m/Km)	0.59% (31.0 Ft/Mile, 5.9 m/Km)	3.51% (185.1 Ft/Mile, 35.1 m/Km)	3.56% (187.7 Ft/Mile, 35.6 m/Km)	3.03% (159.8 Ft/Mile, 30.3 m/Km)	0:38	0:23	0.12	0.18
Leikr	596	2.61% (137.7 Ft/Mile, 26.1 m/Km)	1.11% (58.5 Ft/Mile, 11.1 m/Km)	3.33% (175.7 Ft/Mile, 33.3 m/Km)	3.52% (185.7 Ft/Mile, 35.2 m/Km)	2.68% (141.3 Ft/Mile, 26.8 m/Km)	0:38	0:23	0.22	0.33
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
iPhone 5s	761	2.75% (145.2 Ft/Mile, 27.5 m/Km)	0.55% (29.0 Ft/Mile, 5.5 m/Km)	3.81% (201.2 Ft/Mile, 38.1 m/Km)	3.85% (203.3 Ft/Mile, 38.5 m/Km)	3.18% (168.1 Ft/Mile, 31.8 m/Km)	0:42	0:25	0.11	0.17
Garmin 620 (3.30)	964	2.94% (155.1 Ft/Mile, 29.4 m/Km)	1.71% (90.5 Ft/Mile, 17.1 m/Km)	3.35% (177.1 Ft/Mile, 33.5 m/Km)	3.79% (199.9 Ft/Mile, 37.9 m/Km)	2.81% (148.2 Ft/Mile, 28.1 m/Km)	0:41	0:25	0.34	0.51
Garmin 310XT no Footpod	1449	3.01% (159.1 Ft/Mile, 30.1 m/Km)	0.68% (35.6 Ft/Mile, 6.8 m/Km)	4.15% (219.2 Ft/Mile, 41.5 m/Km)	4.21% (222.2 Ft/Mile, 42.1 m/Km)	3.83% (202.3 Ft/Mile, 38.3 m/Km)	0:45	0:28	0.14	0.20
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)	4.09% (216.2 Ft/Mile, 40.9 m/Km)	4.23% (223.2 Ft/Mile, 42.3 m/Km)	2.80% (147.6 Ft/Mile, 28.0 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% (73.3 Ft/Mile, 13.9 m/Km)	4.04% (213.4 Ft/Mile, 40.4 m/Km)	4.29% (226.3 Ft/Mile, 42.9 m/Km)	3.01% (158.7 Ft/Mile, 30.1 m/Km)	0:46	0:28	0.28	0.42
TomTom Cardio Runner (1.8.42)	766	3.22% (169.9 Ft/Mile, 32.2 m/Km)	2.31% (121.9 Ft/Mile, 23.1 m/Km)	3.13% (165.5 Ft/Mile, 31.3 m/Km)	3.92% (207.1 Ft/Mile, 39.2 m/Km)	2.06% (109.0 Ft/Mile, 20.6 m/Km)	0:42	0:26	0.46	0.69
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
Footpod (uncalibrated)	3255	3.68% (194.2 Ft/Mile, 36.8 m/Km)	2.35% (124.0 Ft/Mile, 23.5 m/Km)	4.00% (211.0 Ft/Mile, 40.0 m/Km)	4.64% (245.1 Ft/Mile, 46.4 m/Km)	3.95% (208.4 Ft/Mile, 39.5 m/Km)	0:50	0:31	0.47	0.70
Polar RC3 GPS	1093	3.75% (197.8 Ft/Mile, 37.5 m/Km)	1.71% (90.4 Ft/Mile, 17.1 m/Km)	4.70% (248.3 Ft/Mile, 47.0 m/Km)	5.01% (264.7 Ft/Mile, 50.1 m/Km)	3.83% (202.5 Ft/Mile, 38.3 m/Km)	0:54	0:33	0.34	0.51
Garmin Fenix 3	1013	3.76% (198.6 Ft/Mile, 37.6 m/Km)	2.45% (129.3 Ft/Mile, 24.5 m/Km)	4.01% (211.8 Ft/Mile, 40.1 m/Km)	4.72% (249.3 Ft/Mile, 47.2 m/Km)	3.22% (169.8 Ft/Mile, 32.2 m/Km)	0:51	0:31	0.49	0.73
Garmin Epix with GLONAS+WAAS	587	3.81% (201.3 Ft/Mile, 38.1 m/Km)	2.58% (136.3 Ft/Mile, 25.8 m/Km)	3.92% (206.8 Ft/Mile, 39.2 m/Km)	4.73% (249.9 Ft/Mile, 47.3 m/Km)	2.59% (136.8 Ft/Mile, 25.9 m/Km)	0:51	0:31	0.52	0.77
Garmin 225	913	3.82% (201.8 Ft/Mile, 38.2 m/Km)	2.73% (144.4 Ft/Mile, 27.3 m/Km)	3.74% (197.4 Ft/Mile, 37.4 m/Km)	4.66% (246.2 Ft/Mile, 46.6 m/Km)	2.89% (152.8 Ft/Mile, 28.9 m/Km)	0:50	0:31	0.55	0.82
Garmin Epix with WAAS	505	3.82% (201.9 Ft/Mile, 38.2 m/Km)	2.28% (120.3 Ft/Mile, 22.8 m/Km)	4.30% (227.1 Ft/Mile, 43.0 m/Km)	4.90% (259.0 Ft/Mile, 49.0 m/Km)	3.34% (176.2 Ft/Mile, 33.4 m/Km)	0:53	0:32	0.46	0.68
TomTom Cardio Runner (1.8.5)	939	4.00% (211.2 Ft/Mile, 40.0 m/Km)	3.23% (170.6 Ft/Mile, 32.3 m/Km)	3.28% (173.1 Ft/Mile, 32.8 m/Km)	4.64% (245.2 Ft/Mile, 46.4 m/Km)	2.56% (135.4 Ft/Mile, 25.6 m/Km)	0:50	0:31	0.65	0.97
Garmin Fenix 2 (3.30)	1030	4.31% (227.4 Ft/Mile, 43.1 m/Km)	2.73% (144.3 Ft/Mile, 27.3 m/Km)	4.67% (246.8 Ft/Mile, 46.7 m/Km)	5.44% (287.3 Ft/Mile, 54.4 m/Km)	2.82% (148.8 Ft/Mile, 28.2 m/Km)	0:59	0:36	0.55	0.82
Epson SF-810	619	4.46% (235.4 Ft/Mile, 44.6 m/Km)	2.69% (142.1 Ft/Mile, 26.9 m/Km)	4.98% (262.9 Ft/Mile, 49.8 m/Km)	5.70% (301.0 Ft/Mile, 57.0 m/Km)	4.10% (216.5 Ft/Mile, 41.0 m/Km)	1:02	0:38	0.54	0.81
Garmin 920XT (GLONASS)	547	4.48% (236.7 Ft/Mile, 44.8 m/Km)	3.39% (179.0 Ft/Mile, 33.9 m/Km)	4.05% (214.0 Ft/Mile, 40.5 m/Km)	5.36% (282.9 Ft/Mile, 53.6 m/Km)	2.84% (150.2 Ft/Mile, 28.4 m/Km)	0:58	0:35	0.68	1.02
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 Vivoactive	580	4.63% (244.2 Ft/Mile, 46.3 m/Km)	3.65% (192.6 Ft/Mile, 36.5 m/Km)	3.91% (206.5 Ft/Mile, 39.1 m/Km)	5.43% (286.7 Ft/Mile, 54.3 m/Km)	2.81% (148.4 Ft/Mile, 28.1 m/Km)	0:59	0:36	0.73	1.09
Garmin 235	886	5.08% (268.4 Ft/Mile, 50.8 m/Km)	3.93% (207.3 Ft/Mile, 39.3 m/Km)	4.50% (237.5 Ft/Mile, 45.0 m/Km)	6.02% (318.0 Ft/Mile, 60.2 m/Km)	3.60% (190.1 Ft/Mile, 36.0 m/Km)	1:05	0:40	0.79	1.18
Garmin Fenix 2 (pre-v3.30)	4157	5.10% (269.5 Ft/Mile, 51.0 m/Km)	2.67% (141.2 Ft/Mile, 26.7 m/Km)	6.14% (324.4 Ft/Mile, 61.4 m/Km)	6.71% (354.0 Ft/Mile, 67.1 m/Km)	4.64% (245.2 Ft/Mile, 46.4 m/Km)	1:12	0:44	0.53	0.80
Garmin 620 (pre-v3.30)	2336	5.32% (281.0 Ft/Mile, 53.2 m/Km)	3.61% (190.4 Ft/Mile, 36.1 m/Km)	5.52% (291.3 Ft/Mile, 55.2 m/Km)	6.61% (348.8 Ft/Mile, 66.1 m/Km)	4.84% (255.4 Ft/Mile, 48.4 m/Km)	1:11	0:44	0.72	1.08
Polar M400	1342	5.52% (291.4 Ft/Mile, 55.2 m/Km)	4.24% (223.9 Ft/Mile, 42.4 m/Km)	4.95% (261.2 Ft/Mile, 49.5 m/Km)	6.55% (345.9 Ft/Mile, 65.5 m/Km)	3.44% (181.6 Ft/Mile, 34.4 m/Km)	1:11	0:43	0.85	1.27
Garmin 10	100	6.90% (364.5 Ft/Mile, 69.0 m/Km)	4.36% (230.5 Ft/Mile, 43.6 m/Km)	6.66% (351.6 Ft/Mile, 66.6 m/Km)	8.73% (461.1 Ft/Mile, 87.3 m/Km)	4.70% (247.9 Ft/Mile, 47.0 m/Km)	1:34	0:58	0.87	1.31