This little bad boy does its job better with longer battery life. Xiaomi mi band 3 fitness tracker tracks heart rate plus sleep tracking as well, equipped with an OLED display and is waterproof to a depth of 50 meters. The device comes with the latest pedometer algorithm and offers round-the-clock activity tracking. Bracelets can display the caller’s information and the device syncs perfectly with smartphone apps.
Very affordable & accurate
Waterproof till 50m
Easy to use
Fast charging & amazing battery life
Only smartphone compatible