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Question:

Question: Ridiculous Watch 3 GPS accuracy

Just bought the Nike+ version and the result is embarassing:


Apple

10 km

658 cal

162 bpm

5'40''/km


TomTom and Garmin

10 km

906 cal

160 bpm

5'47''/km

Definitely not a sport watch.

Apple Watch Series 3, iOS 11.1

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Nov 17, 2017 6:39 AM in response to Bersch In response to Bersch

Hi


When comparing calorie data recorded by different devices and their apps, keep in mind that Apple Watch reports active calories, whereas many other fitness devices and apps report total calories (resting + active = total calories).


Calorie estimations depend, in part, on your personal information. To check that this has been entered accurately and to update it over time:


On your iPhone, in the Watch app, go to: My Watch > Health > Edit (upper-right).


To help improve the accuracy of calorie and other activity-related estimations made by Apple Watch when GPS data is unavailable or not relevant, you can also calibrate it:


Calibrating your Apple Watch for improved Workout and Activity accuracy - Apple Support


Resetting your calibration data can be equally as helpful for Series 2 & 3 models and will not erase your Activity history.


Also check your Location Services settings:


On your iPhone, go to: Settings > Privacy > Location Services:

  • Check that Location Services (the main setting at the top) is turned on.
  • In the list of apps beneath, check that Apple Watch Workout and Nike+ Run Club are set to While Using.
  • Also enable options under System Services including Motion Calibration & Distance, Wi-Fi Networking and Mobile Network Search.


For the best performance from the heart rate sensor during workouts, ensure that you wear your Apple Watch snugly (but not too tightly) on the top of your wrist. Apple suggests that you consider tightening the band before starting a workout and loosening it again afterwards:


Wearing your Apple Watch - Apple Support


Other issues that can impact sensor performance include skin perfusion (which can also vary, depending on ambient temperature) and wrist tattoos:



More information:

Use the Workout app on your Apple Watch - Apple Support

Use the Activity app on your Apple Watch - Apple Support

Nov 17, 2017 6:39 AM

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Nov 17, 2017 6:36 AM in response to Jonathan UK In response to Jonathan UK

Thanks for the default answer... honestly I don't care about cal and bpm... but the distance and the pace are very important and it's impossible to have a so big difference with other devices.


I already resetted the calibration data before the run but I will do it again and I will let you know.

Nov 17, 2017 6:36 AM

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Nov 21, 2017 6:40 AM in response to Jonathan UK In response to Jonathan UK

Different day same disaster... basically it burn more or less 50m every Km.


Apple

10 km

5'45''/km


TomTom

10 km

5'50''/km

Also with your suggestion the pace is faster than reality... maybe is it done on purpose by Apple? 😉

Nov 21, 2017 6:40 AM

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Nov 21, 2017 6:42 AM in response to Bersch In response to Bersch

If the issue persists and you are concerned about a potential hardware defect or software issue, then I suggest that you contact Apple Support (remote diagnostics and/or mail-in service may be available, if required), make a Genius Bar reservation or visit an Apple Authorised Service Provider for further assistance:


Nov 21, 2017 6:42 AM

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Question: Ridiculous Watch 3 GPS accuracy