I have an active 2 as well. I thought that they Oxygen tracker was for any type of watch. it only means that anyone with an active 2 has to spend more money on either a 3 or higher just to get the feature. I just wish that the samsung company can update it for all or any type of watch.
I give you 2 easy fixes on how to fix a black screen (screen won't come on) on the Samsung Galaxy Watch Active 1 or Active 2. Even though you have a black sc@r.liechty_SDR Thank you. So go to your main screen (press the lower physical button on the watch until you get to the main screen). Then swipe up from the 6 o’clock position. MIhW1l.