AMOLED Always on Display & 3ATM Waterproof: Comes in an aviation aluminum frame, the smart watch has a 1.2 inch full touch color AMOLED screen with 390 X 390 hight resolution, giving you a vibrant crystal clear viewing experience for all your data. 3ATM waterproof design let you wear everywhere from the gym to the pool to your bed. Quick Reply & Smart Notifications: For iPhone or Android phone users, you can get notifiations of calls, text messages such as SMS or social media app messages when your phone is nearby. Only for Android phone users, you can even make use of the preset "quick reply" to answer messages or calls immediately. Plus drinking water reminders, sedentary reminders and different reminders as set in alarms. Heart Rate & Blood Oxygen Monitor: The health watch performs 24/7 high-precision monitoring of your heart rate. Plus measure your blood oxygen saturation (SpO2) level within seconds, let you understand how your body feels and prioprity your training endurance. Fitness Tracker Watch & Sleep Tracking: Focus on your workout and exercise with built-in 14 sport modes, the fitness watch records your steps, distance, heart rate changes, calories burned, active minutes and more. Record your night sleep patterns such as deep sleep, light sleep, REM and creat intuitive charts. You can understand and improve your lifestyle for better health. Fast Charging & Wide Compatibility: Say goodbye to daily recharge, 20 minutes charging offers one day wearing, 2 hours fully charging offers you one week worry-free wearing. Compatible for Android 6.0+ or iOS 10.0+. Connected with Deeprio app, you can check weather, play music, find your phone and get more that make you living a easier life.