GPS Accuracy-g620

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Device Count Trueness
(Average Distance Error)
Standard Deviation
(From mean)
Standard Deviation
(From true)
Pace Error (95%)
(from 9:00 min/mile)
Pace Error (95%)
(from 5:30 min/Km)
Distance Error
(20 miles)
Distance Error
(30 Km)
Garmin 620 (original v2.80) 818 2.38% (125.6 Ft/Mile, 23.8 m/Km) 3.96% (209.0 Ft/Mile, 39.6 m/Km) 4.62% (243.9 Ft/Mile, 46.2 m/Km) 0:50 0:30 0.48 0.71
Garmin 620 (original v2.90) 480 2.11% (111.4 Ft/Mile, 21.1 m/Km) 3.87% (204.4 Ft/Mile, 38.7 m/Km) 4.41% (232.9 Ft/Mile, 44.1 m/Km) 0:48 0:29 0.42 0.63
Garmin 620 (replacement v2.90) 421 5.31% (280.6 Ft/Mile, 53.1 m/Km) 6.00% (316.6 Ft/Mile, 60.0 m/Km) 8.02% (423.3 Ft/Mile, 80.2 m/Km) 1:27 0:53 1.06 1.59
Garmin 620 (replacement v3.00) 425 4.68% (247.3 Ft/Mile, 46.8 m/Km) 5.80% (306.3 Ft/Mile, 58.0 m/Km) 7.46% (393.8 Ft/Mile, 74.6 m/Km) 1:21 0:49 0.94 1.40
Garmin 620 (replacement v3.00, NoEPO) 324 2.85% (150.7 Ft/Mile, 28.5 m/Km) 4.71% (248.5 Ft/Mile, 47.1 m/Km) 5.51% (290.7 Ft/Mile, 55.1 m/Km) 0:59 0:36 0.57 0.86
Garmin 620 (replacement v3.00, +FP) 852 3.38% (178.4 Ft/Mile, 33.8 m/Km) 5.97% (315.2 Ft/Mile, 59.7 m/Km) 6.86% (362.2 Ft/Mile, 68.6 m/Km) 1:14 0:45 0.68 1.01
Garmin 620 (replacement v3.00, GPS 3.30) 1130 1.76% (92.9 Ft/Mile, 17.6 m/Km) 3.28% (173.1 Ft/Mile, 32.8 m/Km) 3.72% (196.5 Ft/Mile, 37.2 m/Km) 0:40 0:25 0.35 0.53