>Now, to put this watch in perspective - this is a wrist BP monitor that measures at will and claims clinical accuracy, which is hard to get from a regular wrist monitor under ideal conditions.
I don't know if this is how they do it but if you are wearing the watch for longer periods, and the measurement errors are random, it is plausible that you can confidently calculate an accurate overall BP out of many readings done in the background.
From a random company I'd be sceptical but given that it is Omron.. well, I am still skeptical but a bit less so.
The errors are most certainly not random, especially in hypertensive patients who are most likely to purchase these devices. Hypertensive patients can show large variability in successive BP measurements just due to arm position.
I don't know if this is how they do it but if you are wearing the watch for longer periods, and the measurement errors are random, it is plausible that you can confidently calculate an accurate overall BP out of many readings done in the background.
From a random company I'd be sceptical but given that it is Omron.. well, I am still skeptical but a bit less so.