I bought it for the heart rate monitor because it is more precise than the one in my Mi Band 4 and does not wander about as much. He stopped at the honor because there are two bracelets. A blatant untruth, Mi band 4 is frequently carried away to "unknown distances" by pulse. This is not permitted by honor; anything is acceptable. measures (in comparison to a watch and a tonometer, two additional heart rate monitors). The notice typeface for the honor is also bigger).
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