Sensor check?

[mkk7781]

Cover image 🤔🧐👍 Sensor check? Do the Galaxy Watch 7 and Ultra have to have the same lights and sensors? Oddly, my Galaxy Watch 7 only shows three green lights, not like the Galaxy Ultra model, which has not just green but red lights. I am sure the Galaxy Ultra and Galaxy Watch 7 have the same sensors 💡🤔😊. Asking for a friend. Is this a faulty watch or a difference between the Galaxy Watch Ultra and Galaxy Watch 7 that I have not noticed until today? 

[arianwen27]

I believe they use the same sensors. The red ones are the blood oxygen measurement lights.

Try running a blood oxygen measurement on the watch 7 and hopefully the red lights trigger

In the support section of this app, you can run diagnostics on your watch if you're worried something is wrong.

Don't have a watch 7 at hand to 100% be sure. I believe they use the same sensors

[mkk7781]

Mmm

[mkk7781]

Well, it seems it only shows like this when the O2 sensor is on, which is odd. 🤔🧐🤨 On the clip on YouTube, both red and blue show without warning, but on mine, I try it and it works, but it warns my wrist is not detected. 🙄 😂 🤣 Naturally, my watch is not on my wrist.