I got mine for about $50. It monitors Pulse, Temperature, Blood Pressure, Blood Sugar, Blood Oxygen and has an ECG feature. It seems pretty accurate compared to the readings at my doctor's office. The brand is North Edge, but
I don't think that matters. The software is generic as well, Health Wear.
If you spend around this range or more, you'll probably get something
reliable. If you want comms features, you'll have to go more. Same with weather resistance. This is fine for me and does more than I need. Some watches in addition will measure Lipids and Uric Acid. I'm not sure if there are any that do BAC, but that would be nice!
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Shurato, Sysop Shurato's Heavenly Sphere (ssh, telnet, pop3, ftp,nntp,
,wss) (Ports 22,23,110,21,119,999)
*** THE READER V4.50 [freeware]
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* Origin: Shurato's Heavenly Sphere
telnet://shsbbs.net (999:300/2)