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Measuring blood pressure in a health care setting is a matter of a cuff being put on your arm - much less onerous than measuring ones ECG, which involves placing many electrodes on ones body (and, for some, getting hair shaved in those spots). Yet, Apple managed to provide a decent ECG function in its 1oz plastic and aluminum watch. I don't doubt Apple will find a way to do the same with blood pressure.

Measuring blood glucose is a different kettle of fish. Up to now, all clinical and home-based solutions have involved access to a blood sample. Obviously an Apple Watch would have to find a non-invasive means to achieve the same results - very hard problem, from what I understand.

Is the EKG on the Apple watch accurate? I know it has caught some heart conditions which is commendable and great that it may have saved lives.
 
Why does everyone think a sensor is needed? A band is needed in order to compress your wrist to get a reading. A series 4 can probably do this but  hasnt rolled out the specialty bands for many different things.
 
If you've ever had your blood pressure or blood glucose tested in a health care setting, I simply cannot imagine a 1oz plastic and aluminum watch being able to replicate these measurements and produce anything remotely accurate. Don't get me wrong, Apple has tons of money and intelligent engineers, but we need to have reasonable expectations in 2021.
blood pressure measurement is very tricky, the wrist type blood pressure monitors aren't reliable or accurate,only upper arm devices are accurate.so it will be very hard to imagine a smart watch on your wrist could measure blood pressure accurately.
 
I think we are past the "easy" vital signs that can be implemented in a device like the Apple Watch. From here on out, don't expect health monitoring signs to come out with every new iteration of the Apple Watch every year.
 
Kinda hard to believe that blood pressure would be that hard to implement. Even Samsung managed to do it with Galaxy Watch 4.
 
Kinda hard to believe that blood pressure would be that hard to implement. Even Samsung managed to do it with Galaxy Watch 4.
Not in the USA and it is due to it being not very accurate apparently. You can't get FDA approval if the results are misleading. Apple tends to prefer to do things right, rather than do things first.
 
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