Does anyone else know how accurate these watches are?
My heart rate is always that high - I blame stress and caffeine. My doctor said it's normal because I'm "small." Like a hummingbird.
But there is a big drop for blood oxygen and I don't know why. I'm just wondering if it does that automatically if it gets loose.
I don't know anyone I can ask.

My heart rate is always that high - I blame stress and caffeine. My doctor said it's normal because I'm "small." Like a hummingbird.
But there is a big drop for blood oxygen and I don't know why. I'm just wondering if it does that automatically if it gets loose.
I don't know anyone I can ask.
