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Accuracy Of Garmin GPS Running Watches Over Repetitive Trials On The Same Route


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1 Department of Computer Science and Engineering, University of Tennessee at Chattanooga, Chattanooga, Tennessee, United States
 

Many runners use watches incorporating Global Positioning System technology to track their workouts. These devices can be valuable training aids, but they have limitations. For several reasons including variations in satellite position, environmental factors, and design decisions made by the manufacturer, GPS-enabled watches can produce position measurement errors. These can result in incorrect estimations of total distance covered as well as running pace. This study examined the accuracy of three Garmin running watches of different technological generations using repetitive trials, over several years, by the same runner over the same route. The older watches, a Forerunner 205 and a Forerunner 220, showed similar accuracy when traversing the route. The newer generation watch, a Forerunner 45S, was found to be significantly less accurate in terms of both the trueness and precision of its distance measurements. This may indicate that Garmin, in competition with other manufacturers of similar devices, has chosen in recent years to prioritize device miniaturization and battery life over accuracy.

Keywords

GPS, Running Watch, Sports Watch, Garmin Forerunner, Wearable Technology.
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  • Hart, H., The Pros and Cons of GPS Watches for Runners, Relentless Forward Commotion, https://relentlessforwardcommotion.com/pros-cons-gps-watches-runners/, January 21, 2015. Retrieved November 9, 2021.

  • Malone, J. J., Lovell, R., Varley, M. C., Coutts, A. J., Unpacking the Black Box: Applications and Considerations for Using GPS Devices in Sport, International Journal of Sports Physiology and Performance, 2017, 12, S2-18-S2-26, May 2017.

  • National Research Council, The Global Positioning System: A Shared National Asset, Washington, DC: National Academy Press, 1995.

  • GPS.gov, Selective Availability, https://www.gps.gov/systems/gps/modernization/sa/, May 24, 2021.

  • Retrieved December 28, 2021.

  • Garmin Ltd., GPS Drift and Environmental Factor Impact on GPS Accuracy, https://support.garmin.com/en-US/?faq=CC5azODuBd9BhRbKvp82JA, 2021. Retrieved August 19. 2021.

  • Ranacher, P., Brunauer, R., Trutschnig, W., Van der Spek, S., Reich, S., Why GPS Makes Distances Bigger Than They Are, International Journal of Geographical Information Science, 30:2, 316-333, September 2015.

  • Wikimedia Foundation Inc., Garmin Forerunner, Wikipedia, the Free Encyclopedia, https://en.wikipedia.org/wiki/Garmin_Forerunner, December 15, 2021. Retrieved December 28, 2021.

  • Watson, T., Best Ultra Running GPS Watches: 2021 Edition, Marathon Handbook, https://marathonhandbook.com/best-gps-watch-for-ultramarathons/, September 13, 2021. Retrieved December 28, 2021.

  • Lovett, R. A., Why Your GPS Lies, Podium Runner, https://www.podiumrunner.com/gear/techwearables/why-your-gps-lies/, August 17, 2020. Retrieved August 19, 2021.

  • AllTrails, LLC, AllTrails Route Converter, https://www.alltrails.com/converter, Last accessed September 2, 2021.

  • OnTheGoMap.com, User-created Running Route, accessible using short URL of https://tinyurl.com/y657o78y, created December 6, 2021.

  • MapMyRun.com, User-created Running Route, accessible at

  • https://www.mapmyrun.com/routes/view/4786075201, created December 22, 2021.

  • Gmap-Pedometer.com, User-created Running Route, accessible at http://www.gmappedometer.com/?r=7631079, created December 22, 2021.

  • Savage, J., GPS Accuracy of Garmin, Polar, and other Running Watches, Fellrnr.com,

  • https://fellrnr.com/wiki/GPS_Accuracy , August 29, 2018. Retrieved August 24, 2021.

  • Johansson, R. E., Adolph, S. T., Swart, J., Lambert, M. I., Accuracy of GPS Sport Watches in Measuring Distance in an Ultramarathon Running Race, International Journal of Sports Science & Coaching, 15(2) 212–219, April 2020.

  • Howard, M. C., One-Sample T-Test in Excel, MattCHoward.com, https://mattchoward.com/onesample-t-test-in-excel/, 2021. Retrieved December 28, 2021.


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  • Accuracy Of Garmin GPS Running Watches Over Repetitive Trials On The Same Route

Abstract Views: 1514  |  PDF Views: 154

Authors

Joe Dumas
Department of Computer Science and Engineering, University of Tennessee at Chattanooga, Chattanooga, Tennessee, United States

Abstract


Many runners use watches incorporating Global Positioning System technology to track their workouts. These devices can be valuable training aids, but they have limitations. For several reasons including variations in satellite position, environmental factors, and design decisions made by the manufacturer, GPS-enabled watches can produce position measurement errors. These can result in incorrect estimations of total distance covered as well as running pace. This study examined the accuracy of three Garmin running watches of different technological generations using repetitive trials, over several years, by the same runner over the same route. The older watches, a Forerunner 205 and a Forerunner 220, showed similar accuracy when traversing the route. The newer generation watch, a Forerunner 45S, was found to be significantly less accurate in terms of both the trueness and precision of its distance measurements. This may indicate that Garmin, in competition with other manufacturers of similar devices, has chosen in recent years to prioritize device miniaturization and battery life over accuracy.

Keywords


GPS, Running Watch, Sports Watch, Garmin Forerunner, Wearable Technology.

References