GPS Accuracy-statistics

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	1991	1.87% (98.8 Ft/Mile, 18.7 m/Km)*****	0.29% (15.1 Ft/Mile, 2.9 m/Km)	2.61% (138.0 Ft/Mile, 26.1 m/Km)	2.63% (138.9 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	1284	2.08% (109.7 Ft/Mile, 20.8 m/Km)*****	0.43% (22.4 Ft/Mile, 4.3 m/Km)	2.87% (151.7 Ft/Mile, 28.7 m/Km)	2.91% (153.4 Ft/Mile, 29.1 m/Km)	2.17% (114.8 Ft/Mile, 21.7 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)	2.92% (154.4 Ft/Mile, 29.2 m/Km)	2.94% (155.2 Ft/Mile, 29.4 m/Km)	2.35% (124.1 Ft/Mile, 23.5 m/Km)	0:32	0:19	0.06	0.09
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
Suunto Ambit2 R	1048	2.41% (127.4 Ft/Mile, 24.1 m/Km)*****	1.50% (79.1 Ft/Mile, 15.0 m/Km)	2.66% (140.4 Ft/Mile, 26.6 m/Km)	3.06% (161.8 Ft/Mile, 30.6 m/Km)	2.22% (117.2 Ft/Mile, 22.2 m/Km)	0:33	0:20	0.30	0.45
Garmin 205	1177	2.46% (129.8 Ft/Mile, 24.6 m/Km)*****	0.35% (18.3 Ft/Mile, 3.5 m/Km)	3.44% (181.6 Ft/Mile, 34.4 m/Km)	3.46% (182.6 Ft/Mile, 34.6 m/Km)	3.10% (163.9 Ft/Mile, 31.0 m/Km)	0:37	0:23	0.07	0.10
Garmin 910XT	737	2.49% (131.7 Ft/Mile, 24.9 m/Km)*****	1.25% (66.0 Ft/Mile, 12.5 m/Km)	3.04% (160.4 Ft/Mile, 30.4 m/Km)	3.30% (174.1 Ft/Mile, 33.0 m/Km)	2.41% (127.4 Ft/Mile, 24.1 m/Km)	0:36	0:22	0.25	0.37
iPhone 4s	952	2.51% (132.3 Ft/Mile, 25.1 m/Km)*****	1.02% (54.0 Ft/Mile, 10.2 m/Km)	3.23% (170.5 Ft/Mile, 32.3 m/Km)	3.39% (179.1 Ft/Mile, 33.9 m/Km)	2.82% (148.8 Ft/Mile, 28.2 m/Km)	0:37	0:22	0.20	0.31
Garmin 310XT	5039	2.70% (142.7 Ft/Mile, 27.0 m/Km)*****	0.63% (33.4 Ft/Mile, 6.3 m/Km)	3.72% (196.2 Ft/Mile, 37.2 m/Km)	3.77% (199.1 Ft/Mile, 37.7 m/Km)	3.35% (177.1 Ft/Mile, 33.5 m/Km)	0:41	0:25	0.13	0.19
Leikr	682	2.71% (143.3 Ft/Mile, 27.1 m/Km)*****	1.15% (60.7 Ft/Mile, 11.5 m/Km)	3.47% (183.0 Ft/Mile, 34.7 m/Km)	3.66% (193.3 Ft/Mile, 36.6 m/Km)	2.80% (147.7 Ft/Mile, 28.0 m/Km)	0:40	0:24	0.23	0.34
Garmin 610	1256	2.85% (150.6 Ft/Mile, 28.5 m/Km)*****	1.80% (94.8 Ft/Mile, 18.0 m/Km)	3.12% (164.7 Ft/Mile, 31.2 m/Km)	3.61% (190.7 Ft/Mile, 36.1 m/Km)	2.27% (119.8 Ft/Mile, 22.7 m/Km)	0:39	0:24	0.36	0.54
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	1130	2.98% (157.2 Ft/Mile, 29.8 m/Km)*****	1.80% (94.9 Ft/Mile, 18.0 m/Km)	3.34% (176.3 Ft/Mile, 33.4 m/Km)	3.81% (201.0 Ft/Mile, 38.1 m/Km)	2.82% (149.0 Ft/Mile, 28.2 m/Km)	0:41	0:25	0.36	0.54
Samsung Galaxy S3	847	3.19% (168.4 Ft/Mile, 31.9 m/Km)*****	1.38% (72.9 Ft/Mile, 13.8 m/Km)	4.05% (213.9 Ft/Mile, 40.5 m/Km)	4.29% (226.7 Ft/Mile, 42.9 m/Km)	3.01% (159.1 Ft/Mile, 30.1 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	926	3.39% (179.2 Ft/Mile, 33.9 m/Km)*****	2.51% (132.7 Ft/Mile, 25.1 m/Km)	3.19% (168.3 Ft/Mile, 31.9 m/Km)	4.09% (216.0 Ft/Mile, 40.9 m/Km)	2.48% (131.0 Ft/Mile, 24.8 m/Km)	0:44	0:27	0.50	0.75
TomTom Cardio Runner	778	3.42% (180.8 Ft/Mile, 34.2 m/Km)*****	2.36% (124.7 Ft/Mile, 23.6 m/Km)	3.47% (183.3 Ft/Mile, 34.7 m/Km)	4.23% (223.2 Ft/Mile, 42.3 m/Km)	2.51% (132.4 Ft/Mile, 25.1 m/Km)	0:46	0:28	0.47	0.71
Garmin Fenix 3	1115	3.77% (199.2 Ft/Mile, 37.7 m/Km)*****	2.47% (130.2 Ft/Mile, 24.7 m/Km)	4.01% (212.0 Ft/Mile, 40.1 m/Km)	4.73% (249.8 Ft/Mile, 47.3 m/Km)	3.22% (169.9 Ft/Mile, 32.2 m/Km)	0:51	0:31	0.49	0.74
Garmin 225	965	3.82% (201.8 Ft/Mile, 38.2 m/Km)*****	2.73% (143.9 Ft/Mile, 27.3 m/Km)	3.75% (198.1 Ft/Mile, 37.5 m/Km)	4.67% (246.4 Ft/Mile, 46.7 m/Km)	2.91% (153.8 Ft/Mile, 29.1 m/Km)	0:50	0:31	0.55	0.82
Polar RC3 GPS	1137	3.95% (208.3 Ft/Mile, 39.5 m/Km)*****	1.79% (94.6 Ft/Mile, 17.9 m/Km)	4.96% (262.0 Ft/Mile, 49.6 m/Km)	5.28% (279.0 Ft/Mile, 52.8 m/Km)	4.05% (213.7 Ft/Mile, 40.5 m/Km)	0:57	0:35	0.36	0.54
Garmin Fenix 2	1111	4.36% (230.2 Ft/Mile, 43.6 m/Km)*****	2.73% (144.3 Ft/Mile, 27.3 m/Km)	4.78% (252.2 Ft/Mile, 47.8 m/Km)	5.53% (291.9 Ft/Mile, 55.3 m/Km)	2.87% (151.5 Ft/Mile, 28.7 m/Km)	0:60	0:36	0.55	0.82
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
Epson SF-810	649	4.59% (242.5 Ft/Mile, 45.9 m/Km)*****	2.76% (145.6 Ft/Mile, 27.6 m/Km)	5.15% (271.9 Ft/Mile, 51.5 m/Km)	5.88% (310.4 Ft/Mile, 58.8 m/Km)	4.25% (224.6 Ft/Mile, 42.5 m/Km)	1:03	0:39	0.55	0.83
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	666	5.01% (264.4 Ft/Mile, 50.1 m/Km)*****	3.88% (204.7 Ft/Mile, 38.8 m/Km)	4.39% (231.5 Ft/Mile, 43.9 m/Km)	5.93% (312.9 Ft/Mile, 59.3 m/Km)	3.38% (178.6 Ft/Mile, 33.8 m/Km)	1:04	0:39	0.78	1.16
Garmin 235	952	5.15% (271.8 Ft/Mile, 51.5 m/Km)*****	3.98% (210.3 Ft/Mile, 39.8 m/Km)	4.55% (240.1 Ft/Mile, 45.5 m/Km)	6.10% (321.8 Ft/Mile, 61.0 m/Km)	3.63% (191.9 Ft/Mile, 36.3 m/Km)	1:06	0:40	0.80	1.19
Garmin VivoactiveHR	962	5.18% (273.3 Ft/Mile, 51.8 m/Km)*****	4.06% (214.2 Ft/Mile, 40.6 m/Km)	4.49% (236.9 Ft/Mile, 44.9 m/Km)	6.09% (321.8 Ft/Mile, 60.9 m/Km)	3.11% (164.3 Ft/Mile, 31.1 m/Km)	1:06	0:40	0.81	1.22
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
Polar M400 v1.4	1515	5.74% (302.9 Ft/Mile, 57.4 m/Km)*****	4.46% (235.3 Ft/Mile, 44.6 m/Km)	5.06% (267.3 Ft/Mile, 50.6 m/Km)	6.78% (357.9 Ft/Mile, 67.8 m/Km)	3.46% (182.6 Ft/Mile, 34.6 m/Km)	1:13	0:45	0.89	1.34