Apple Watch Ultra locking while on wrist

I have an Apple Watch Ultra running the latest release (9.1 build 20S75) and have had continuous issues with the watch locking itself. It has occurred while wearing multiple types of straps including the Ocean Band, Sport Loop, and the Alpine Loop. I wear my bands pretty tight (tight enough that they leave indentations on my wrist 360 degrees).


I've worn Apple Watches since 2016, and this only started happening with Watch OS 9 / Apple Watch Ultra.


Before the inevitable question, yes, I searched for similar posts and no, I didn't find any that had relevant answers.


Has anyone else been experiencing this issue with Watch OS 9 and/or Apple Watch Ultra? Any ideas on a fix? I'd prefer to avoid the un-pair / re-pair route, but will try it if it's a viable solution.


Thanks in advance.

Apple Watch Ultra, watchOS 9

Posted on Nov 3, 2022 11:28 AM

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Posted on Sep 17, 2023 2:30 AM

I have this issue after I updated to watchOS 9.6. There were no physical damage to the watch though.it popped up all of a sudden one day after the recent O.S. Update. Initially, the watch remained locked when I entered the passcode prompt while wrist but the frequency of prompts increased gradually and now the watch is unusable with passcode on. I've tried all the possible fixes mentioned online and in apple forum.


Now my watch doesn't track heart rate, stops tracking while doing a workout, no sleep data, literally nothing is tracked these days. I have already turned off passcode as a work around for this problem and I've already compromised with my security. On top of all this, I've lost most of the features of the apple watch already. 

Similar questions

112 replies

Dec 3, 2022 6:31 PM in response to flavoredair

I’m having the same issue, no tats and not very hairy arms! My old series 4 didn’t have the issue. Also my workout display turns off when I’m running, I have always on display enabled, the workout app display is enabled when my wrist is down, and I’m not on low power mode. Help Apple! Otherwise pretty epic device!!

Dec 14, 2022 9:45 PM in response to Charlyes138

Unfortunately my watch got worse and became erratic and the touch screen stopped working and the crown started wigging out too. The funny thing is it worked fine when plugged in. I returned it to Apple and they sent me a replacement which works fine. I would definitely recommend Apple Care + for that reason. The agent did ask me if I had been in a cold and wet environment...which I was outside running in the cold and was sweaty. Kind of disappointing so far...plus the rumor mill is that they may or may not warranty for water related damage...who knows but I have Apple Care + so I should be fine either way.

Mar 4, 2023 4:43 AM in response to flavoredair

I have the exact same problem. Apple said they looked on their forums and didn't see any issues. I guess they didn't look hard enough as I found your post immediately. They had me run diagnostics which didn't turn anything up, and reinstall the OS twice, and clean to the contacts on the back. The issue persists. As they can't find any issue with diagnostics, I can send it in for analysis but without product replacement. That is kind of bogus as I won't have my watch for weeks. Oh well.

Mar 5, 2023 7:34 PM in response to nichola82

It’s not because of the tattoos! I know a ton of people that are having the same problem that have zero tattoos. It’s always a different answer when you talk to someone at Apple. I’ve owned several watches from Apple, and never had this problem. You would think when they put out a new watch even if there is a problem they could figure it out. I had my watch for a week (bought it at the Apple Store) they told me I could replace it with a refurbished one. Yeah, like I want a refurbished watch to replace my brand new full price watch. Hopefully they can get this figured out and quit making up excuses!

Mar 6, 2023 6:35 AM in response to Braoks

Braoks wrote:

I had my watch for a week (bought it at the Apple Store) they told me I could replace it with a refurbished one. Yeah, like I want a refurbished watch to replace my brand new full price watch.

If the watch is less than 14 days old and you bought it from Apple, you can return it for a refund and buy a new one. Don't go through the Genius Bar. Just bring back all of your packaging and your receipt and return it.

Mar 6, 2023 8:03 AM in response to flavoredair

I received my Ultra mid-December and it locks while on my wrist. Been doing this since new, but only under certain conditions. I think I've finally got the cause figured out, but not the fix. It's only happening when I'm riding my bike outside in temps of 25 degrees to about 50 degrees and when I'm wearing it under long sleeves and/or gloves. Upon locking, it prompts for the passcode. Once the passcode is entered it locks up again for about 10 minutes with just the Apple logo showing. So frustrating for an $800 disposable watch. However, I've ridden with the watch in warmer temps with short-sleeves and no issues. I'm not sure what the takeaway is here. Apples's only solution is for me to send the watch in for a replacement, which I'm doing.

Apple Watch Ultra locking while on wrist

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