Galaxy Watch5 Pro stops tracking sleep during the night and then resumes?

[Steven P. Administrators]

Honestly losing my mind over this damn watch. 

Bought it second hand in "new" state, so after reading a lot of topics on reddit and other places, I have tried some things that haven't really helped so far.

• One suggestion was to wear the watch facing inward at night, so it has better contact with my skin and not the hairs of my wrist/lower arm
• Another suggestion was to wear it tighter at night, so the sensors have better contact
• Another suggestion was to clean the sensors with cleaning alcohol, did this
• Another suggestion was to "reset" the device, did this
• Another suggestion was to clear the cache partition in recovery, did this
• I have DND set between 00:00 and 09:00
• Sleep Mode's "set target" is for every day between 01:00 and 08:30 

The top image is accurate in that I fell asleep at around 1am and woke up at 7am. 

But wearing it differently actually only recorded, at most, 2 hours of not sleep time, but around 2 hours of the entire night in total.

Here's an example:

The most accurate tracking is when I wear it like I would during the day, not inward, and not tighter.. but I am seeing a couple of hours when the tracking stops and then resumes.

Does anyone have any suggestions I can try to make it more accurate, which does not include buying a Galaxy fit/Apple Watch or other alternative?

[spaceelf]

never seen that on my 4 but I can say they recommend against using alcohol to clean it

https://www.samsung.com/us/support/answer/ANS00084602/

I'm hardly an expert on these things otherwise

[Steven P. Administrators]

After reading a bunch of topics about this, it appears Samsung Health is broken across all their Watches.

I returned the 5 and started using my (original SM-R800) Galaxy Watch again, because it tracked Sleep properly, but then I got the Samsung Health update on Tizen and it became as bad as what I experienced with the 5., Since then I have purchased the Watch6 Classic so I could get Google Wallet on my Watch and I guess I have to wait like everyone else until Samsung finally fixes it.

I tried wearing it on my ankle last night and it tracked just over 4 hours. I did get up to blow my nose, but I didn't check what time it was, it could have been 6:17 when it stopped tracking, but I suspect it was much earlier:

Also, even though I set a schedule (01:00 - 09:00) I still have to manually enter sleep mode after 01:00 because I find that the watch has not entered Sleep mode by itself even 15 minutes after 1am. It's completely broken!

I also still had to disable sleep mode when I actually woke up today at 08:40 but tracking ended at 06:17 pfff