This Ruxing Smart 1.85 ''Amoled screen with 390450 resolution. The smart watch meets functions such as Bluetooth connection, information notification, voice assistant, multiple exercise modes, menstrual reminder, smart reminder, heart rate and sleep monitoring, blood oxygen detection, and listening to music. Personalized dial settings, magnetic charging, 180 mA battery. IP67 waterproof, smart watch compatible with Ios 8.0 or Android 4.0 above, ultra-thin body, watch with aluminum alloy full body and soft and comfortable silicone strap.