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Apple Watch screen flashing in direct sunlight.

I just recently bought an Apple Watch series 5 and when the watch face is exposed to direct sunlight the screen starts flashing on and off. I have the always on mode turned on and the watch will auto-dim. Not sure why this is happening and would like to fix it if possible. Any thoughts?

Apple Watch

Posted on Oct 2, 2019 7:42 AM

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Posted on Oct 2, 2019 3:34 PM

Hi Chips,


I realise it is not ideal but is it possible for you to upload a video to iCloud, Google Drive, Dropbox, YouTube, etc. and provide a link to show what the issue is?


Additionally, just a few related questions:


  • have you got a complication running full screen at the time this happens or just a watch face
  • has your watch been in direct sunlight for long and does it feel hot to the touch
  • have you updated to the most recent WatchOS release / are you running a WatchOS beta
  • what is your battery charge (approximately) at the time this is happening?
  • what is the brightness setting on your Always On Display (default, low, high)


Unfortunately the possible causes are still fairly broad at this point - it is entirely possible you are having issues with the ambient light sensor, or it could be related to operating temperature, etc. I would also suggest biting the bullet and doing a pair and unpair and a clean set up of your watch just to eliminate setup/connectivity as potential factors.

89 replies

Apr 11, 2020 4:40 AM in response to Chipsj15

add my month old apple watch 5 edition to the list. Noticed my watch flashing today while sitting outside. Its not hot or overheating.


Thought it was broken but lifting the wrist stops the flashing, just starts flashing again when gone back to sleep and in the sun. Even happens when partially covered with sleeve cuff.


Having a watch that doesn't work properly outside isn't very useful. May have to return it.

Apr 21, 2020 4:10 AM in response to tmtardioli

Hi !

It can be quite difficult to reproduce the issue, personally it only does it with a bright light source like the sun or car headlights, and only when it hits the bottom right corner of the display at a certain angle. The watch has no malfunction but it’s a defect at the engineering level I guess, and no software update ever fixed it so far. Getting it replaced by another series 5 doesn’t seem to solve anything from what I read.

May 29, 2020 2:17 PM in response to Chipsj15

I purchased an Apple watch series 5 two weeks ago and I have noticed the same thing. Whenever I go outside into the direct sunlight the screen goes black and will not turn on until I take the watch off my wrist. I have restarted it many times, it is updated to the latest software and i have also tried repairing it to my iPhone but the problem persists. I haven't noticed that the screen flickers just that it goes black and does not display anything once in the sunlight.

Jun 7, 2020 3:35 PM in response to Daviddfg

This is what I do just put it in Theater mode if I'm going to be out in direct sun for a long period of time - has helped with battery life so just have to find the positives.


Having the same issue as everyone here in this thread - had my Apple Watch Series 5 for about a month now, but not the end of the world for me this issue just wanting some acknowledgment from Apple!

Jun 22, 2020 12:26 AM in response to Chipsj15

Just wanted to update my side of the story since I hope this thread will catch Apple's attention.


Had this issue since purchasing my watch a month or so ago. Took it into a store and I was told they could send it off for me and maybe exchange it for a new device. The fellow did warn me that it may not even solve my issue as it appears to be fairly common.


The fellow serving me and 2 other Apple members of staff had the same issue as me on their own watches.

Apple Watch screen flashing in direct sunlight.

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