Watch 7 Ultra Sleep Apnea detection feature.

[UsuiReikiMaster]

I have found after using several galaxy watch models since the beginning. Now that they have the Sleep Apnea Detection feature none of the models will give me any results as it says it doesn't have enough information to calculate. not even the 7 ultra. After talking to samsung and different tech support, the reason is because I have tattoos in the area causing inaccurate to no results. Literally everything else works perfectly and accurately surprisingly. My sleep is logged perfectly every night. All the settings are correct, it just blows my mind with today's tech tattoos can cause you to not be able to use certain features. WISE: to new buyers if the Sleep Apnea feature is why your upgrading its not worth it yet. Example, the watch 6 classic is just as good if not better. The 7 ultra is faster though and very accurate. 

[realaud]

The sensors for blood oxygen levels go by light penetration of the skin.  If you have dark tattoos, the light is not going to penetrate--the same reason they used to make women remove their nail polish for the finger sensors, until they got wise and put the sensors on the back side of the device.  Tattoos are a choice.  Not everyone has them, and not everyone who has them, has them on their wrists.  Don't blame the technology.

[UsuiReikiMaster]

I'm not blaming the tech. I'm just saying all the other sensors get through my tattoos just fine even the o2. Lots of people have tattoos today as so the tech i feel should have taken that into consideration when creating a new sensor.

[realaud]

Maybe turn the watch to the underside iof the wrist (unless the tattoo is a full bracelet)? Or switch wrists on the nights you will measure. Again, assuming the other wrist doesn't have a tattoo as well.

Personally, I think the sleep apnea detection is not a very useful addition, since during sleep if you have snore detection on, you'd be able to make a pretty good guess at it based on the amount of snoring and the measured oxygen levels in the normal sleep detection. The watch using the sleep apnea tool only measures for two nights and is only a pre diagnostic tool to initiate a conversation with your doctor. Your nighly sleep tracking with snore detection on is a more consistent measurement for this.

[UsuiReikiMaster]

Great thought. I'm gonna try it. Thanks. But yes you are correct I can see from my sleep data. They will have to improve the sensor for sleep apnea testing to get better. Others are having the same issue i was told.

[realaud]

Yes, technology isn't perfect, but in most cases it's functional for its stated purpose. As I said, I think regular sleep tracking with snore detection on is a much better indicator of sleep apnea than this new feature, and I think Samsung could have used their development resources to improve other things, rather than add this moderately useless new feature.

[UsuiReikiMaster]

I agree