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Apparently Apple tried to make Watch a better health device with some of those features.

But the technology just isn't there yet - at least not in a watch form factor.

Obviously a med-lab on your wrist would be a killer device. Unfortunately Watch isn't it.

Exactly my point. The technology is there (e.g. [1]) but not in watch form factor. It doesn't need to be, and nobody wants a med lab on his wrist. That's why the Watch is not a health device and saying it's the first step/attempt is just blah blah marketing.

[1] http://acceldx.com/

Even the one sensor they did add, for heart rate, is in there mainly because it's possible, not because it's super useful.

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