Android 5.0 or higher, iOS 9.0 compatible. Bluetooth 5.2. Full HD 1.28-inch touchscreen. Ten health functions: heart rate, blood pressure, blood oxygen, sleep quality analysis, breathing exercise, pedometer, distance traveled, calories burned, activity duration, and 24/7 stress monitoring. Over 100 multiple sports modes. IP67 waterproofing (1 m immersion for 30 minutes). Calls via Bluetooth with built-in microphone and loudspeaker. Display of notifications and messages received. Photo shutter control, music control, weather information, alarm, calculator, and voice assistance. Reminder function for hydration and sitting position. Cell phone location function. Do not disturb mode. Dial can be customized. Works with DA FIT Fit application. Easy-to-replace silicone strap. 15-day standby battery life, up to 5 days of use. USB magnetic charging cable included.