At the end of January the rumors were almost assumed that the Galaxy 7 (which comes out in July) would take it ...

The next Samsung Galaxy Watch can measure blood glucose levels
The manufacturer advances to Apple.
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But the latest news/rumors about Galaxy 7 no longer say anything about the subject.So I think it will be in the next year.

This time I do not think it is only smoke, such as when unknown brands announce this, but of course we will have to see the reliability/real utility for us.