Apple Watch Swimming Measurement Inaccuracy

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Level 1

4 points

Apple Watch Swimming Measurement Inaccuracy

My brand new Series 7 is great in so many respects, but the swimming distance/lap measurement feature is wildly inaccurate. My daily 1400 yard swim is reported anywhere from 687 yards to 1100 yards and I can't figure out what the problem is or why the inaccuracies are different--does anyone know? I went to the Apple Store and they suggested a return given that I'm within the 14 day period. However, I like all of the other features. Is there a fix?

Apple Watch Series 7

Posted on Jul 22, 2022 02:35 PM

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Answer 1

ArmMan1016

Community Specialist

Jul 23, 2022 04:39 PM in response to Summitridge

Hey there Summitridge,

Welcome to Apple Support Communities. We suggest calibrating the Apple Watch to improve the measurement accuracy. Per the Apple Support article:

Calibrate your Apple Watch

While wearing your Apple Watch, go to a flat, open outdoor area that offers good GPS reception and clear skies.
If you have Apple Watch Series 2 or later, you just need your Apple Watch. If you have Apple Watch Series 1 or earlier, bring your iPhone for GPS. Hold your iPhone in your hand, or wear it on an armband or waistband.
Open the Workout app. To start, tap Outdoor Walk or Outdoor Run. To set a goal before starting, tap .
Walk or run at your normal pace for about 20 minutes.

More info on this can be found here:

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

Feel free to reach back out if you have any questions.

We hope this helps you.

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Apple Watch Swimming Measurement Inaccuracy

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