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 Aug 17, 2023 7:25 PM

Posting again to make sure you see this. I have a new Ultra, no tats, and had the exact same situation that most of you have described. The steps in this article resolved my screen locking issue 14 days ago and I have been very satisfied since.


https://screenrant.com/apple-watch-keeps-locking-fixed-solutions-settings-cleaning-explained/


If an Apple Watch is locking unexpectedly, then the most likely issue is the current settings. Specifically, the Wrist Detection feature might not be turned on or working as it should. To check this, open the Watch app on your iPhone, tap 'Passcode,' and find the 'Wrist Detection' option at the bottom of the page. If the toggle is turned off, tap it to enable Wrist Detection. If Wrist Detection is already enabled, turn the feature off and back on again (mine was already enabled - cycling through disabled, and back to enabled was the magic ticket for me!).


It was touch & go for a little while there, but I love my Ultra now. Good luck

Similar questions

118 replies

May 4, 2024 7:36 PM in response to flavoredair

have same exact problem. all people here saying "you wear it too loose" just wasting everyone's time.

I wear it on my both hands switching between. it works absolutely perfectly on my left hand and falls to sleep frequently on my right hand. I wear it tight on both hands.

I never had this problem with previous watch series and it only started to happen with Ultra.

It is obvious it is A FALTY SENSOR and/or SOFTWARE problem and not some bad wearing.

apple's products quality has been degrading over past few years not going to lie.

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 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.

May 11, 2023 5:01 AM in response to flavoredair

Me too.... on the Series 8. No resolution. What I did today.... wearing the watch slightly higher on my wrist (as opposed to the exact same spot as I wore my Series4)... This has been the ONLY thing that has worked... SO FAR. It's been 3 hrs and no locking. WHY did I think of this? Apple Support said "something changed with your wrist". I thought how ridiculous...... well... maybe it did. I remember the last year of my Series4 I would get bruises under the watch. No clue why. It left me with a dent. So.... testing out the theory now.

May 16, 2023 7:24 AM in response to tina3kid

tina3kid wrote:

I think it's the new software..... "enhanced feature" they say. Yet my husband and son both have the new Ultra and they aren't experiencing this. I have tried everything. Including a different watch band. nothing helps

If neither your husband nor your son is having this problem, it is unlikely to be any sort of "enhanced feature" or new software. Either there is something wrong with your device or there is something about the way you are wearing it that is causing a problem. Do you have any tattoos on that wrist?

May 22, 2023 9:34 AM in response to Leegue

Leegue wrote:

My series 8 is doing the same thing. Mine will even lock when am scrolling through it. It locks when am wearing during a workout. It’s annoying. I have had Apple Watches since the first one, always wore the on the same wrist, on the same way but this is the first time I’ve had an issue.

I solved it by turning off the passcode 😂. But I need a resolution because I prefer it locked.

That sounds like a hardware issue with your watch. I'd suggest that you arrange with Apple to have it evaluated.


Genius Bar Reservation and Apple Support Options - Apple


Nov 19, 2023 6:13 AM in response to flavoredair

It shouldn’t be tattoos bc I’ve had many Apple Watches and the same tats for years and I just opened and set up my new ultra. Went from one to the other. Series 7 or something. In literally had both on my wrist and only the ultra locked. It’s incessant. Actually unusable. I’m livid. You can’t workout keep data ect. I’ve had some watches disconnect during heavy workouts sweat ect. But I’ve sat still and this thing just locks. I also noticed my display is set to always on but it doesn’t stay on. I reset turned functions on and of and nothing. This is definitely software as I can’t imagine all these brand new devices are defective hardware. HELLO APPLE SUPPORT DONT YOU SEE THIS IS LEGITIMATE ISSUE.

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Apple Watch Ultra locking while on wrist

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