Difference between revisions of "GPS Accuracy-statistics"

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{| class="wikitable"
+
{| class="wikitable sortable"
 
!rowspan="2"|Device
 
!rowspan="2"|Device
 
!rowspan="2"|Count
 
!rowspan="2"|Count
Line 5: Line 5:
 
!rowspan="2"|Standard Deviation<br/>(From mean)
 
!rowspan="2"|Standard Deviation<br/>(From mean)
 
!rowspan="2"|Standard Deviation<br/>(From true)
 
!rowspan="2"|Standard Deviation<br/>(From true)
!colspan="2"|Average Pace Error
+
!colspan="2"|Pace Error (95%)
 +
!colspan="2"|Distance Error
 
|-
 
|-
 
!(from 9:00 min/mile)
 
!(from 9:00 min/mile)
 
!(from 5:30 min/Km)
 
!(from 5:30 min/Km)
 +
!(20 miles)
 +
!(30 Km)
 
|-
 
|-
 
|Footpod (calibrated)
 
|Footpod (calibrated)
Line 15: Line 18:
 
|style="background-color: #63BE7B;"|2.34% (123.4 Ft/Mile, 23.4 m/Km)
 
|style="background-color: #63BE7B;"|2.34% (123.4 Ft/Mile, 23.4 m/Km)
 
|style="background-color: #63BE7B;"|2.34% (123.6 Ft/Mile, 23.4 m/Km)
 
|style="background-color: #63BE7B;"|2.34% (123.6 Ft/Mile, 23.4 m/Km)
|0:13
+
|0:25
|0:08
+
|0:15
 +
|0.03
 +
|0.04
 
|-
 
|-
 
|{{Polar V800}}
 
|{{Polar V800}}
 
|1095
 
|1095
|style="background-color: #69BF7B;"|0.22% (11.5 Ft/Mile, 2.2 m/Km)
+
|style="background-color: #68BF7B;"|0.22% (11.5 Ft/Mile, 2.2 m/Km)
 
|style="background-color: #68BF7B;"|2.41% (127.1 Ft/Mile, 24.1 m/Km)
 
|style="background-color: #68BF7B;"|2.41% (127.1 Ft/Mile, 24.1 m/Km)
|style="background-color: #68BF7B;"|2.42% (127.6 Ft/Mile, 24.2 m/Km)
+
|style="background-color: #67BF7B;"|2.42% (127.6 Ft/Mile, 24.2 m/Km)
|0:13
+
|0:26
|0:08
+
|0:16
 +
|0.04
 +
|0.07
 
|-
 
|-
 
|{{Garmin 205}}
 
|{{Garmin 205}}
 
|1125
 
|1125
|style="background-color: #7DC57C;"|0.47% (24.9 Ft/Mile, 4.7 m/Km)
+
|style="background-color: #79C47C;"|0.47% (24.9 Ft/Mile, 4.7 m/Km)
 
|style="background-color: #A4D07E;"|3.14% (166.0 Ft/Mile, 31.4 m/Km)
 
|style="background-color: #A4D07E;"|3.14% (166.0 Ft/Mile, 31.4 m/Km)
|style="background-color: #9ECF7E;"|3.18% (167.9 Ft/Mile, 31.8 m/Km)
+
|style="background-color: #98CD7E;"|3.18% (167.9 Ft/Mile, 31.8 m/Km)
|0:17
+
|0:34
|0:10
+
|0:21
 +
|0.09
 +
|0.14
 
|-
 
|-
 
|{{Garmin 910XT}} with [[Footpod]]
 
|{{Garmin 910XT}} with [[Footpod]]
 
|725
 
|725
|style="background-color: #BDD780;"|1.28% (67.8 Ft/Mile, 12.8 m/Km)
+
|style="background-color: #AED37F;"|1.28% (67.8 Ft/Mile, 12.8 m/Km)
 
|style="background-color: #94CC7D;"|2.94% (155.4 Ft/Mile, 29.4 m/Km)
 
|style="background-color: #94CC7D;"|2.94% (155.4 Ft/Mile, 29.4 m/Km)
|style="background-color: #A0CF7E;"|3.21% (169.6 Ft/Mile, 32.1 m/Km)
+
|style="background-color: #9BCE7E;"|3.21% (169.6 Ft/Mile, 32.1 m/Km)
|0:17
+
|0:35
|0:11
+
|0:21
 +
|0.26
 +
|0.39
 
|-
 
|-
 
|iPhone 4s
 
|iPhone 4s
 
|956
 
|956
|style="background-color: #9ECF7E;"|0.90% (47.3 Ft/Mile, 9.0 m/Km)
+
|style="background-color: #94CC7D;"|0.90% (47.3 Ft/Mile, 9.0 m/Km)
 
|style="background-color: #A3D07E;"|3.12% (164.9 Ft/Mile, 31.2 m/Km)
 
|style="background-color: #A3D07E;"|3.12% (164.9 Ft/Mile, 31.2 m/Km)
|style="background-color: #A3D07E;"|3.25% (171.6 Ft/Mile, 32.5 m/Km)
+
|style="background-color: #9DCE7E;"|3.25% (171.6 Ft/Mile, 32.5 m/Km)
|0:18
+
|0:35
|0:11
+
|0:21
 +
|0.18
 +
|0.27
 
|-
 
|-
 
|{{Garmin 310XT}} with [[Footpod]]
 
|{{Garmin 310XT}} with [[Footpod]]
 
|3724
 
|3724
|style="background-color: #89C97D;"|0.62% (33.0 Ft/Mile, 6.2 m/Km)
+
|style="background-color: #83C77C;"|0.62% (33.0 Ft/Mile, 6.2 m/Km)
 
|style="background-color: #B1D47F;"|3.30% (174.1 Ft/Mile, 33.0 m/Km)
 
|style="background-color: #B1D47F;"|3.30% (174.1 Ft/Mile, 33.0 m/Km)
|style="background-color: #AAD27F;"|3.36% (177.2 Ft/Mile, 33.6 m/Km)
+
|style="background-color: #A4D07E;"|3.36% (177.2 Ft/Mile, 33.6 m/Km)
|0:18
+
|0:36
|0:11
+
|0:22
 +
|0.12
 +
|0.19
 
|-
 
|-
 
|{{Garmin 610}}
 
|{{Garmin 610}}
 
|2085
 
|2085
|style="background-color: #E3E282;"|1.77% (93.3 Ft/Mile, 17.7 m/Km)
+
|style="background-color: #CDDC81;"|1.77% (93.3 Ft/Mile, 17.7 m/Km)
 
|style="background-color: #A4D07E;"|3.14% (165.9 Ft/Mile, 31.4 m/Km)
 
|style="background-color: #A4D07E;"|3.14% (165.9 Ft/Mile, 31.4 m/Km)
|style="background-color: #BCD780;"|3.61% (190.3 Ft/Mile, 36.1 m/Km)
+
|style="background-color: #B4D57F;"|3.61% (190.3 Ft/Mile, 36.1 m/Km)
|0:19
+
|0:39
|0:12
+
|0:24
 +
|0.35
 +
|0.53
 
|-
 
|-
 
|{{Garmin 620}} (3.30)
 
|{{Garmin 620}} (3.30)
 
|1130
 
|1130
|style="background-color: #E2E282;"|1.76% (92.9 Ft/Mile, 17.6 m/Km)
+
|style="background-color: #CDDC81;"|1.76% (92.9 Ft/Mile, 17.6 m/Km)
 
|style="background-color: #AFD47F;"|3.28% (173.1 Ft/Mile, 32.8 m/Km)
 
|style="background-color: #AFD47F;"|3.28% (173.1 Ft/Mile, 32.8 m/Km)
|style="background-color: #C4DA80;"|3.72% (196.5 Ft/Mile, 37.2 m/Km)
+
|style="background-color: #BBD780;"|3.72% (196.5 Ft/Mile, 37.2 m/Km)
|0:20
+
|0:40
|0:12
+
|0:25
 +
|0.35
 +
|0.53
 +
|-
 +
|{{Garmin 920XT}}
 +
|755
 +
|style="background-color: #FCEA83;"|2.48% (131.2 Ft/Mile, 24.8 m/Km)
 +
|style="background-color: #A1D07E;"|3.11% (164.0 Ft/Mile, 31.1 m/Km)
 +
|style="background-color: #CCDC81;"|3.98% (210.1 Ft/Mile, 39.8 m/Km)
 +
|0:43
 +
|0:26
 +
|0.50
 +
|0.75
 
|-
 
|-
 
|{{Garmin 310XT}} no [[Footpod]]
 
|{{Garmin 310XT}} no [[Footpod]]
 
|1945
 
|1945
|style="background-color: #A2D07E;"|0.94% (49.8 Ft/Mile, 9.4 m/Km)
+
|style="background-color: #97CD7E;"|0.94% (49.8 Ft/Mile, 9.4 m/Km)
 
|style="background-color: #E5E382;"|3.94% (208.0 Ft/Mile, 39.4 m/Km)
 
|style="background-color: #E5E382;"|3.94% (208.0 Ft/Mile, 39.4 m/Km)
|style="background-color: #DBE081;"|4.05% (213.9 Ft/Mile, 40.5 m/Km)
+
|style="background-color: #D1DD81;"|4.05% (213.9 Ft/Mile, 40.5 m/Km)
|0:22
+
|0:44
|0:13
+
|0:27
 +
|0.19
 +
|0.28
 
|-
 
|-
 
|Samsung Galaxy S3
 
|Samsung Galaxy S3
 
|832
 
|832
|style="background-color: #BDD780;"|1.28% (67.7 Ft/Mile, 12.8 m/Km)
+
|style="background-color: #AED37F;"|1.28% (67.7 Ft/Mile, 12.8 m/Km)
 
|style="background-color: #EAE582;"|4.00% (211.4 Ft/Mile, 40.0 m/Km)
 
|style="background-color: #EAE582;"|4.00% (211.4 Ft/Mile, 40.0 m/Km)
|style="background-color: #E6E382;"|4.20% (222.0 Ft/Mile, 42.0 m/Km)
+
|style="background-color: #DBE081;"|4.20% (222.0 Ft/Mile, 42.0 m/Km)
|0:23
+
|0:45
|0:14
+
|0:28
 +
|0.26
 +
|0.38
 
|-
 
|-
 
|{{Suunto Ambit2 R}}
 
|{{Suunto Ambit2 R}}
 
|1025
 
|1025
|style="background-color: #B2D57F;"|1.15% (60.9 Ft/Mile, 11.5 m/Km)
+
|style="background-color: #A5D17E;"|1.15% (60.9 Ft/Mile, 11.5 m/Km)
 
|style="background-color: #F1E783;"|4.08% (215.7 Ft/Mile, 40.8 m/Km)
 
|style="background-color: #F1E783;"|4.08% (215.7 Ft/Mile, 40.8 m/Km)
|style="background-color: #E9E482;"|4.24% (224.1 Ft/Mile, 42.4 m/Km)
+
|style="background-color: #DDE182;"|4.24% (224.1 Ft/Mile, 42.4 m/Km)
|0:23
+
|0:46
|0:14
+
|0:28
 +
|0.23
 +
|0.35
 
|-
 
|-
 
|Footpod (uncalibrated)
 
|Footpod (uncalibrated)
 
|3724
 
|3724
|style="background-color: #FED680;"|2.46% (129.8 Ft/Mile, 24.6 m/Km)
+
|style="background-color: #FAE983;"|2.46% (129.8 Ft/Mile, 24.6 m/Km)
 
|style="background-color: #DAE081;"|3.81% (201.0 Ft/Mile, 38.1 m/Km)
 
|style="background-color: #DAE081;"|3.81% (201.0 Ft/Mile, 38.1 m/Km)
|style="background-color: #FDEA83;"|4.53% (239.3 Ft/Mile, 45.3 m/Km)
+
|style="background-color: #F0E683;"|4.53% (239.3 Ft/Mile, 45.3 m/Km)
|0:24
+
|0:49
|0:15
+
|0:30
 +
|0.49
 +
|0.74
 
|-
 
|-
 
|{{Polar RC3 GPS}}
 
|{{Polar RC3 GPS}}
 
|1433
 
|1433
|style="background-color: #D9E081;"|1.65% (86.9 Ft/Mile, 16.5 m/Km)
+
|style="background-color: #C5DA80;"|1.65% (86.9 Ft/Mile, 16.5 m/Km)
 
|style="background-color: #FED280;"|4.62% (244.2 Ft/Mile, 46.2 m/Km)
 
|style="background-color: #FED280;"|4.62% (244.2 Ft/Mile, 46.2 m/Km)
|style="background-color: #FED780;"|4.91% (259.2 Ft/Mile, 49.1 m/Km)
+
|style="background-color: #FFE483;"|4.91% (259.2 Ft/Mile, 49.1 m/Km)
|0:27
+
|0:53
|0:16
+
|0:32
 +
|0.33
 +
|0.49
 
|-
 
|-
 
|{{TomTom Cardio Runner}}
 
|{{TomTom Cardio Runner}}
 
|946
 
|946
|style="background-color: #FB9774;"|3.42% (180.6 Ft/Mile, 34.2 m/Km)
+
|style="background-color: #FDBB7B;"|3.42% (180.6 Ft/Mile, 34.2 m/Km)
 
|style="background-color: #CEDC81;"|3.65% (192.8 Ft/Mile, 36.5 m/Km)
 
|style="background-color: #CEDC81;"|3.65% (192.8 Ft/Mile, 36.5 m/Km)
|style="background-color: #FED17F;"|5.00% (264.2 Ft/Mile, 50.0 m/Km)
+
|style="background-color: #FFDE82;"|5.00% (264.2 Ft/Mile, 50.0 m/Km)
|0:27
+
|0:54
|0:17
+
|0:33
 +
|0.68
 +
|1.03
 +
|-
 +
|{{Garmin 920XT}} (GLONASS)
 +
|712
 +
|style="background-color: #FDBD7C;"|3.37% (178.0 Ft/Mile, 33.7 m/Km)
 +
|style="background-color: #D8DF81;"|3.78% (199.4 Ft/Mile, 37.8 m/Km)
 +
|style="background-color: #FFDB81;"|5.06% (267.4 Ft/Mile, 50.6 m/Km)
 +
|0:55
 +
|0:33
 +
|0.67
 +
|1.01
 
|-
 
|-
 
|{{Fenix 2}} (3.30)
 
|{{Fenix 2}} (3.30)
 
|1111
 
|1111
|style="background-color: #FEC77E;"|2.68% (141.4 Ft/Mile, 26.8 m/Km)
+
|style="background-color: #FFE383;"|2.68% (141.4 Ft/Mile, 26.8 m/Km)
 
|style="background-color: #FED380;"|4.61% (243.3 Ft/Mile, 46.1 m/Km)
 
|style="background-color: #FED380;"|4.61% (243.3 Ft/Mile, 46.1 m/Km)
|style="background-color: #FDBE7C;"|5.33% (281.4 Ft/Mile, 53.3 m/Km)
+
|style="background-color: #FECD7F;"|5.33% (281.4 Ft/Mile, 53.3 m/Km)
|0:29
+
|0:58
|0:18
+
|0:35
 +
|0.54
 +
|0.80
 
|-
 
|-
 
|{{Garmin 10}}
 
|{{Garmin 10}}
 
|1042
 
|1042
|style="background-color: #F9786E;"|3.89% (205.4 Ft/Mile, 38.9 m/Km)
+
|style="background-color: #FBA176;"|3.89% (205.4 Ft/Mile, 38.9 m/Km)
 
|style="background-color: #FFE383;"|4.37% (231.0 Ft/Mile, 43.7 m/Km)
 
|style="background-color: #FFE383;"|4.37% (231.0 Ft/Mile, 43.7 m/Km)
|style="background-color: #FB9F76;"|5.86% (309.2 Ft/Mile, 58.6 m/Km)
+
|style="background-color: #FCB179;"|5.86% (309.2 Ft/Mile, 58.6 m/Km)
|0:32
+
|1:03
|0:19
+
|0:39
 +
|0.78
 +
|1.17
 
|-
 
|-
 
|{{Garmin 620}} (pre-v3.30)
 
|{{Garmin 620}} (pre-v3.30)
|3213
+
|3320
|style="background-color: #FB9A75;"|3.37% (178.1 Ft/Mile, 33.7 m/Km)
+
|style="background-color: #FDC17C;"|3.31% (174.8 Ft/Mile, 33.1 m/Km)
|style="background-color: #FCA677;"|5.27% (278.4 Ft/Mile, 52.7 m/Km)
+
|style="background-color: #FCA978;"|5.23% (276.1 Ft/Mile, 52.3 m/Km)
|style="background-color: #FA8771;"|6.26% (330.5 Ft/Mile, 62.6 m/Km)
+
|style="background-color: #FB9F76;"|6.19% (326.8 Ft/Mile, 61.9 m/Km)
|0:34
+
|1:07
|0:21
+
|0:41
|-
+
|0.66
|{{Polar M400}}
+
|0.99
|831
 
|style="background-color: #F8696B;"|4.11% (217.3 Ft/Mile, 41.1 m/Km)
 
|style="background-color: #FDBA7B;"|4.98% (262.8 Ft/Mile, 49.8 m/Km)
 
|style="background-color: #F97B6F;"|6.46% (341.1 Ft/Mile, 64.6 m/Km)
 
|0:35
 
|0:21
 
 
|-
 
|-
 
|{{Fenix 2}} (pre-v3.30)
 
|{{Fenix 2}} (pre-v3.30)
 
|4378
 
|4378
|style="background-color: #FDC07C;"|2.79% (147.4 Ft/Mile, 27.9 m/Km)
+
|style="background-color: #FFDD82;"|2.79% (147.4 Ft/Mile, 27.9 m/Km)
 
|style="background-color: #F8696B;"|6.16% (325.3 Ft/Mile, 61.6 m/Km)
 
|style="background-color: #F8696B;"|6.16% (325.3 Ft/Mile, 61.6 m/Km)
|style="background-color: #F8696B;"|6.76% (357.2 Ft/Mile, 67.6 m/Km)
+
|style="background-color: #FA8070;"|6.76% (357.2 Ft/Mile, 67.6 m/Km)
|0:37
+
|1:13
|0:22
+
|0:45
 +
|0.56
 +
|0.84
 +
|-
 +
|{{Polar M400}}
 +
|1556
 +
|style="background-color: #F8696B;"|4.91% (259.2 Ft/Mile, 49.1 m/Km)
 +
|style="background-color: #FCA878;"|5.24% (276.7 Ft/Mile, 52.4 m/Km)
 +
|style="background-color: #F8696B;"|7.18% (379.2 Ft/Mile, 71.8 m/Km)
 +
|1:18
 +
|0:47
 +
|0.98
 +
|1.47
 
|}
 
|}

Revision as of 16:47, 11 January 2015

Device Count Trueness
(Average Distance Error)
Standard Deviation
(From mean)
Standard Deviation
(From true)
Pace Error (95%) Distance Error
(from 9:00 min/mile) (from 5:30 min/Km) (20 miles) (30 Km)
Footpod (calibrated) 3724 0.13% (7.1 Ft/Mile, 1.3 m/Km) 2.34% (123.4 Ft/Mile, 23.4 m/Km) 2.34% (123.6 Ft/Mile, 23.4 m/Km) 0:25 0:15 0.03 0.04
Polar V800 1095 0.22% (11.5 Ft/Mile, 2.2 m/Km) 2.41% (127.1 Ft/Mile, 24.1 m/Km) 2.42% (127.6 Ft/Mile, 24.2 m/Km) 0:26 0:16 0.04 0.07
Garmin 205 1125 0.47% (24.9 Ft/Mile, 4.7 m/Km) 3.14% (166.0 Ft/Mile, 31.4 m/Km) 3.18% (167.9 Ft/Mile, 31.8 m/Km) 0:34 0:21 0.09 0.14
Garmin 910XT with Footpod 725 1.28% (67.8 Ft/Mile, 12.8 m/Km) 2.94% (155.4 Ft/Mile, 29.4 m/Km) 3.21% (169.6 Ft/Mile, 32.1 m/Km) 0:35 0:21 0.26 0.39
iPhone 4s 956 0.90% (47.3 Ft/Mile, 9.0 m/Km) 3.12% (164.9 Ft/Mile, 31.2 m/Km) 3.25% (171.6 Ft/Mile, 32.5 m/Km) 0:35 0:21 0.18 0.27
Garmin 310XT with Footpod 3724 0.62% (33.0 Ft/Mile, 6.2 m/Km) 3.30% (174.1 Ft/Mile, 33.0 m/Km) 3.36% (177.2 Ft/Mile, 33.6 m/Km) 0:36 0:22 0.12 0.19
Garmin 610 2085 1.77% (93.3 Ft/Mile, 17.7 m/Km) 3.14% (165.9 Ft/Mile, 31.4 m/Km) 3.61% (190.3 Ft/Mile, 36.1 m/Km) 0:39 0:24 0.35 0.53
Garmin 620 (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
Garmin 920XT 755 2.48% (131.2 Ft/Mile, 24.8 m/Km) 3.11% (164.0 Ft/Mile, 31.1 m/Km) 3.98% (210.1 Ft/Mile, 39.8 m/Km) 0:43 0:26 0.50 0.75
Garmin 310XT no Footpod 1945 0.94% (49.8 Ft/Mile, 9.4 m/Km) 3.94% (208.0 Ft/Mile, 39.4 m/Km) 4.05% (213.9 Ft/Mile, 40.5 m/Km) 0:44 0:27 0.19 0.28
Samsung Galaxy S3 832 1.28% (67.7 Ft/Mile, 12.8 m/Km) 4.00% (211.4 Ft/Mile, 40.0 m/Km) 4.20% (222.0 Ft/Mile, 42.0 m/Km) 0:45 0:28 0.26 0.38
Suunto Ambit2 R 1025 1.15% (60.9 Ft/Mile, 11.5 m/Km) 4.08% (215.7 Ft/Mile, 40.8 m/Km) 4.24% (224.1 Ft/Mile, 42.4 m/Km) 0:46 0:28 0.23 0.35
Footpod (uncalibrated) 3724 2.46% (129.8 Ft/Mile, 24.6 m/Km) 3.81% (201.0 Ft/Mile, 38.1 m/Km) 4.53% (239.3 Ft/Mile, 45.3 m/Km) 0:49 0:30 0.49 0.74
Polar RC3 GPS 1433 1.65% (86.9 Ft/Mile, 16.5 m/Km) 4.62% (244.2 Ft/Mile, 46.2 m/Km) 4.91% (259.2 Ft/Mile, 49.1 m/Km) 0:53 0:32 0.33 0.49
TomTom Cardio Runner 946 3.42% (180.6 Ft/Mile, 34.2 m/Km) 3.65% (192.8 Ft/Mile, 36.5 m/Km) 5.00% (264.2 Ft/Mile, 50.0 m/Km) 0:54 0:33 0.68 1.03
Garmin 920XT (GLONASS) 712 3.37% (178.0 Ft/Mile, 33.7 m/Km) 3.78% (199.4 Ft/Mile, 37.8 m/Km) 5.06% (267.4 Ft/Mile, 50.6 m/Km) 0:55 0:33 0.67 1.01
Garmin Fenix 2 (3.30) 1111 2.68% (141.4 Ft/Mile, 26.8 m/Km) 4.61% (243.3 Ft/Mile, 46.1 m/Km) 5.33% (281.4 Ft/Mile, 53.3 m/Km) 0:58 0:35 0.54 0.80
Garmin 10 1042 3.89% (205.4 Ft/Mile, 38.9 m/Km) 4.37% (231.0 Ft/Mile, 43.7 m/Km) 5.86% (309.2 Ft/Mile, 58.6 m/Km) 1:03 0:39 0.78 1.17
Garmin 620 (pre-v3.30) 3320 3.31% (174.8 Ft/Mile, 33.1 m/Km) 5.23% (276.1 Ft/Mile, 52.3 m/Km) 6.19% (326.8 Ft/Mile, 61.9 m/Km) 1:07 0:41 0.66 0.99
Garmin Fenix 2 (pre-v3.30) 4378 2.79% (147.4 Ft/Mile, 27.9 m/Km) 6.16% (325.3 Ft/Mile, 61.6 m/Km) 6.76% (357.2 Ft/Mile, 67.6 m/Km) 1:13 0:45 0.56 0.84
Polar M400 1556 4.91% (259.2 Ft/Mile, 49.1 m/Km) 5.24% (276.7 Ft/Mile, 52.4 m/Km) 7.18% (379.2 Ft/Mile, 71.8 m/Km) 1:18 0:47 0.98 1.47