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Hi Alex,
If you go to Amazon, you'll see heaps of Smart Watches that measure blood glucose. They are all lying. The ones that measure blood pressue - they do.....and give wrong answers.
There may be some high end ones that come close to doing what they claim. Type their model number into YouTube and find a review where someone actually checks the features against real equipment.
My one actually measured sleep reasonably well for several months, but is just telling me garbage now.
When I most need a watch is when I'm driving somewhere for an appointment and want to check the time. With a dumb watch it is easy. With a Smart one, one has to shake one's wrist and hope the screen shows up, and even if it does, if wearing sunglasses one still can't read it.
The only useful thing about them is that if one wakes up in the middle of the night, one can easily check the time.
Regards,
Renato
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