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> This is a huge improvement against regular blood presure monitors (which are heavy, and nonportable).

Is the product reliable ? I am in the market for something like that but $500 for something that could just be an expensive gadget is hard to justify :/.

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https://www.amazon.com/dp/B003XM8XMO/

$25, reliable, 1.5 lbs shipped. I have this one (or a similar model by the same brand).

I have something similar in price but for my wrist and it is ballpark accurate (so up to about 5 off depending on many factors). But only when used as described on the correct wrist. Tested with my doctor and he showed the other wrist is highly inaccurate.

Good enough for home testing but that is about it.

The device I linked is an upper arm cuff, not a wrist device (measuring at the wrist is less accurate either way).

The reviews on the page suggest it's not quite up to a certain quality yet. It's an early adopter thing and probably will need some more iterations before it's viable for broader use.

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