Wildly different Active Calories during walking workouts

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Level 1

4 points

Wildly different Active Calories during walking workouts

I’ve noticed some wonky active calorie counts during walking workouts so I ran an experiment yesterday. Same exact walk along the same exact route, only difference was the time of day:

AM Outdoor Walk

2.74 Miles

50 minutes

~18 minute pace

89 average heart rate

234 active calories

PM Outdoor Walk

2.76 Miles

50 minutes

~18 Minute Pace

89 average heart rate

344 active calories

What could be causing my watch to add an extra 110 calories when all other variables are the same?

Apple Watch Ultra 2

Posted on Apr 19, 2024 1:07 PM

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Answer 1

WheelieNick

Level 9

59,463 points

Apr 19, 2024 2:36 PM in response to Metam8

This is weird, you might want to calibrate your watch

While wearing your Apple Watch, go to a flat, open outdoor area that has 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, take your iPhone for GPS. Hold your iPhone in your hand, or wear it on an armband or waistband.
Open the Workout app, then tap Outdoor Walk or Outdoor Run. To set a goal before starting, tap the More button.
Walk or run at your normal pace for about 20 minutes.

If you don't have time to finish the workout, you can complete 20 minutes over multiple outdoor Workout sessions. If you work out at different speeds, you should also calibrate for 20 minutes at each of the speeds that you walk or run.

See this link for further referenceCalibrate your Apple Watch for improved Workout and Activity accuracy - Apple Support

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Wildly different Active Calories during walking workouts

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