I received my Wyze watch a few days ago, and at first was really happy with it, build quality seems very good, and although very basic in function/features, I felt it worth the money and wait… however, the main reason I purchased the watch, was for the blood 02 senor, and that part seems to have major use/accuracy issues.
I have lung issues, and monitor my blood 02 levels several times per day. The issue I am having with the watch is…
While wearing the watch, I attempt to get my blood 02 reading… the app/sensor/watch takes literally 30-45 seconds to read/display anything, and then, 2 out of 3 times it doesn’t read, and says “please wear watch and retry” or something of that nature (it seems to think I do not have the watch on my wrist). On the instances when the blood 02 sensor/reading actually works, it is horribly inaccurate. I have tested the watch/02 sensor MANY times against a finger sensor model (the same type used at most Doctors’ offices) and the watch/sensor will read 97-99% (even in my young/health days, my 02 never exceeded 96%), while at the same time, the other sensor/device on my finger will read 88-90 (which is accurate for me if I’m not using 02). Meaning the watch reading is off as much as 11 percentage points on the high side! In my opinion, that is absolutely unacceptable. How do I know the finger sensor readings are correct? Because I have taken the finger model/device with me to Doctor’s appointments to verify accuracy against their instruments/sensors… and mine is ALWAYS with 1 percentage point of theirs.
So, I don’t know if I simply received a defective product, or if all the Wyze Watch 02 sensors are inaccurate? I have a ticket in with support now, and am hoping they can help fix it, or I can return it for a replacement.