Top for my money, I deal with them in the pool, and they even know what kind of swimming it is! When I was ill with COVID, I compared it to a pulse oximeter, and the findings were similar. They measure the amount of oxygen in the blood quite well. In a nutshell, the best value! Pros: A low-cost wristband with multiple workout modes, sleep tracking, and water resistance Cons: The strap's connection to the bracelet may not have been the best.
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