Ideal for being acquainted with the Polar brand; I had originally intended to bring the Vantage V2, but it's a good thing I gave the Unite a go first because the disappointment would have cost five times as much if I hadn't. The interface on older devices is the same; they simply offer additional functions. I went back to using smart watches because they monitor exercise just as well and left these to measure sleep quality. Use experience of six months.
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