I received my Apple Watch Series 6 yesterday. Of course one of the first things I tried was the blood oxygen app. The first time I did it, my blood oxygen level was at 84%. Looking online that’s dangerously low. I normally like to wear my watch loosely and lower down my wrist. So I moved it up higher and made the strap tighter and my next reading was 99%.
Throughout the day the readings were hard to get. My most frequent response is Unsuccessful Measurement. I really have to make it tight and sit my arm on a table to have any hope of getting a measurement. I have hairy arms, so I’m wondering if this is making it hard for the light sensor to penetrate.
I love the rest of the watch though. I’m upgrading from Series 4 and I love the always on display. The new watch faces are also fun. The Artist face is surprisingly captivating.