Build Number : R820XXU1EUK2
Have you figured out how to enable oxygen blood saturation in active 2,?
Hamid, be aware that SpO2 sensors on watches may not be as accurate as those on medical devices. Again, the GWA2 does measure VO2 which is not the same as SpO2. Finally, as far as I know, the GWA2 only has two photodiodes, one green for heart rate and other red. A pulse oximeter needs two diodes, one red and other infra red.Eventually, after the Iranian government's reluctance to not buy the vaccine on time, I also contracted corona virus, and according to my doctor's advice, I had to check my blood oxygen level regularly, and I had to pay $ 30 to buy a separate device. This post is a reminder that Samsung could have simply added the ability to measure blood oxygen to the Active2 watch with an update, but it did not.
I once read an article on reddit saying that Sp02 sensor Active 2 weaker than Watch 3 Therefore, Samsung has not enabled the Sp02 feature