watchOS 7.6 Fitness app crash/minimize

Hello HKTh,

Welcome to the Apple Support Communities. From your post, it sounds like there are issues with just the Fitness apps on the Apple Watch. We'll do what we can to help.

If you haven't already, try restarting your Apple Watch: How to restart your Apple Watch

As for the battery usage, try the suggestions here: Batteries - Maximizing Performance - Apple

Take care.

I have a series 3 watch with only 1 3rd party app installed - MapMyFitness by Under Armour. After 7.6, MapMyFitness crashes whenever I try to start it.

I've tried restarting my watch

I've tried force re-starting my watch

I've tried uninstalling the app and reinstalling it

I purchased the watch for use with this application so I'd love to get it working again

I have this exact same problem with my series 3 watch with MapMyFitness being the only 3rd part app installed. Suddenly, I cannot use MapMy Fitness. I have tried restarting the watch, uninstalling and reinstalling the app, force restarting my watch. I would like to be able to use my watch with this app.

The original poster implied they had more systemic issues - battery and other fitness app giving wrong mileage. For me, the built-in fitness app works fine. Its just that I have so much data, etc. in MapMyFitness that I want to keep using it.

I suspect we are going to have to wait for Under Armor to do something about it. Its often the case that an app developer can get away with something mildly unhygienic in one release but it breaks in another. If app breakage was widespread, I assume Apple would be working on a fix. Given the lack of interest here, I assume the app is going to have to change.

Thank you for the information! I love the community engagement.

For me the solution is that my watch is in the box to get sold. This is the last straw. Every single upgrade fails due to memory until I reboot and/or uninstall my one app. Now that one app no longer works. One app! Come on Apple.

Too poor an experience to endure. Don’t sell an older product if the experience is this bad!

Since my post, I have reached out to MapMyFitness. They have updated their app to version 21.15.1 and so have I it has since been resolved. Working in the app world, I know it is not uncommon that operating systems are updated and apps/programs need to be updated to accommodate the updates. It can be an inconvenience but I'm glad it has been resolved.

I'm having this same issue with my Apple Watch Series 3. I'm running OS 7.6.1, and my watch will crash and turn itself off approx 3-5 minutes into my run. The only way I can turn it back on is by performing a reset (holding the wheel and side buttons until the Apple logo appears). This take about 5 minutes, and then usually crashes 1-2 more times. I thought it was just when using the Runkeeper app, but I switched to Apple's workout app (that comes with the Watch) and other fitness apps, and the same thing happens. It has done this 6 days in a row including today.

Doing the steps listed from Nicholas_B2 above didn't work for me.

I agree with what you said - and I had mentioned above that I thought UA would have to solve it.

My biggest underlying frustration is the the watch OS seems bloated for the memory of the Apple Watch Series 3. So, having my only app stop working was final straw. Every single (without exception) OS upgrade fails unless I manually uninstall that app and reboot before doing the upgrade.

Its great that apple keeps an older watch in the lineup for people who want a cool product without the hefty price. I love that. And I love that they try to keep that watch current with OS updates. So, even though I find this frustrating, I think it comes with the territory of trying to provide a long support life. Hence my replacement watch will probably be an SE or an Apple Watch 7 assuming they come out in mid Sept.

I've had the same issue with my series 3 watch as well. So frustrating.