Several users have reported that the Apple Watch shuts down without warning while exercising. Your Apple Watch lets you track your exercise with the Workout app.
There are several types of workouts you may do, such as walking, running, swimming, or hiking. If your watch shuts down itself in the middle of your exercise session, you may lose all of your workout data meaning you won’t know how much you exercised.
This article explains how you can troubleshoot if your watch unexpectedly shuts off while you are working out. A lot of factors can create this problem: low battery, outdated software, or problematic third-party apps. This guide will help you find out what the issue is, and ways to fix it. Please, after each step, try checking your watch to see if you have fixed the problem.
If you are experiencing this issue, the most likely cause is a low battery. You can check your battery percentage by swiping up on the watch face. You will also see a red lightning bolt icon if the battery is low. This means that it is time to charge your watch. When your watch is charging, you will see a green bolt icon. If you are having trouble charging your watch, make sure that:
- You do not use an incorrect charger. Use only the Apple Magnetic Charging Cable and the USB Power Adapter that are Apple certified.
- The power outlet connection is firm enough.
- Your adapter or cable is not damaged.
- Your charger and the back of the watch are clean.
- Try a different USB port or power outlet.
- Try a different Apple Watch Magnetic Charging Cable.
Update apps iOS and watchOS software
Be sure to check for watchOS software updates on your watch.
Update your apps: You can do this automatically (Settings > App Store > Automatic Downloads) or manually (App Store > Account > Updates > Update All).
Update watchOS: You can update using your iPhone or directly on your Apple Watch.
- Using your iPhone: Open the Apple Watch app and then My Watch > General > Software Update.
- Update on your watch: Go to Settings > General > Software Update.
See also: If You Are Unable To Install Update
Update your iPhone: Please make sure that you are using an iPhone with the latest version of iOS. You can check for updates by going to Settings > General > Software Update on your iPhone.
You may want to calibrate your Apple Watch if your watch is having this problem. Please note that this involves at least 20 minutes of outdoor running or walking. Here is how:
- On your iPhone, make sure that Location Services is enabled (Settings > Privacy > Location Services).
- Also, on your iPhone, make sure that Motion Calibration & Distance is turned on (Settings > Privacy > Location Services > System Services).
- On your iPhone, open the Apple Watch app and then go to My Watch tab, then tap Privacy > Reset Fitness Calibration Data. This will reset your calibration data.
- Then, go outside and find a flat area. Make sure that the area has clear skies.
- Wear your watch and open the Workout app. Select Outdoor Walk or Outdoor Run. Then walk or run at least 20 minutes. This will calibrate your watch.
Restart and Force restart
First restart your Apple Watch. If restarting does not help you, then try to force restart your watch. Here is how:
Restart: Press and hold the side button until you see the onscreen power off slider. Then drag the slider. Wait 30 seconds for the watch to turn off. Then press and hold the side button until you see the Apple logo. See also: My Apple Watch Won’t Turn On
Force restart: Press and hold the side and the Digital Crown until you see the Apple logo.
Unpair and repair
If you are still having this problem, you may want to try unpairing and re-pairing. Follow the steps below:
- Make sure that your iPhone and watch are close together.
- On your iPhone, open the Apple Watch app, tap your watch, and that the (i) info button next to your watch you want to unpair.
- Tap the red Unpair Apple Watch button. If you are asked, keep your cellular plan.
- You will need to enter your Apple ID and password.
- Follow the onscreen instructions until you see the Start Pairing message.
- Now set up your watch.
- You will be asked to set up as new or restore from a backup. Choose a backup and continue.
- And follow the onscreen instructions.
If this does not work, what you may want to do is to try resetting your watch and setting up as new. Please note that this will erase everything and reset your device to the factory settings. Here is how:
- On your watch, go to Settings > General > Reset > Erase All Content and Settings.
- If you are asked, keep your cellular plan.
- Then follow the onscreen instructions to reset your watch.
- Then we will repair but this time make sure that you choose “Set up as new”.
If you are still having this problem, contact Apple Support.