This Ruxing Smart 1.43 ''Amoled screen smart watch meets functions such as Bluetooth call, information notification of multiple exercise modes, smart reminder, heart rate and sleep monitoring, blood oxygen detection, and listening to music. Magnetic charging, 200 mA battery. IP68 waterproof, a variety of dial optional, smart watch compatible with Ios 8.0 or Android 5.0 above, strap with soft and comfortable silicone strap and metal mesh strap styles for your choice.