1. Software Updates: Have there been any recent updates to your iPhone or Apple Watch? Sometimes, new software versions can impact how data is recorded and calculated. It's always good to make sure you're on the latest software to rule out any compatibility issues.
2. Activity Levels: Have your activity levels or routines changed in any way? Increased stress, changes in sleep patterns, or even different daily activities can affect how your rest calories are being calculated.
3. Device Placement: Make sure your Apple Watch is correctly placed on your wrist and fits properly. A loose fit or improper positioning can impact the accuracy of the data being collected.
4. Health Data Calibration: It might be helpful to recalibrate your health data on both your iPhone and Apple Watch. This can sometimes help in ensuring more accurate readings.
5. Check Sensors: Ensure that the sensors on both your iPhone and Apple Watch are clean and free from any obstructions. Dust, sweat, or dirt can sometimes interfere with sensor readings.
Remember, your BMI being in a healthy range is great news! It's good to hear that your overall health isn't affected by these fluctuations.
If you've tried these steps and are still facing issues, it might be a good idea to reach out to Apple Support for more personalized assistance. They have all the tools and resources to dive deeper into your specific case.