GPS Accuracy-statistics
From Fellrnr.com, Running tips
| 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 |
