1. Screen size: 45*38*12.3mm 2. Screen Diagonal: 1.73” 3. Screen: HD IPS, 250*285 Pixels 2.5D Curved Infinity Screen 4. Battery: 220-300mAh Li-ion battery, longer life 5. Languages: English, Frenc more→h, Spanish, Polish, Portuguese, Italian, Indonesian, Dutch, Turkish,Thai, Arabic ect 6. IP67 waterproof, please don't take the watch to go swimming, diving, shower and sauna!! Functions: 1.Notification: Synchronous notification of incoming messages from Notification Center in your phone (SMS,Fackbook,INS,Twitter,etc.), incoming call reminder. 2. Calls: make and answer calls after Bluetooth connection with smart phone 3. Heart rate detection, sleep monitoring, blood pressure, blood oxygen