Not exactly. Having an O2 sensor built in is good for monitoring levels over time, certain times of day and during activities. For someone that has physicians that like to review the data to see how things are going, the pulse ox, pulse and ECG are very important.
It works in conjunction with a “real” BP cuff, that also records to the iPhone, for more detailed data.
I was about to pull the trigger on buying the 10, but it’s going backwards health wise from my 6. I agree with another poster that said adding sleep apnea without an O2 sensor is ridiculous and gimmicky. I do like the screen and its brightness though.
You mentioned hearing aid support. That will be in the AirPod Pro 2. I have those and they already did that. It just took a little work to do it. They have supported, along with the model 1, importing an audio gram for years from the iPhone. The new item is the “testing” ability (and easier setup) which I’d rather have the audio gram from my audiologist instead. And, yes, they work great as make shift hearing aids… for 4 hours.