1. Case: Slim, beautiful and strong, stainless steel, lightweight, only 46g. 2. 1.39 inch AMOLED color touch screen, 454x454 PPI 326, multiple watch interfaces. 3. APP "Huawei Health" for Android 4.4+/iOS 9.0+. 4. Functions: Some of below functions need set in APP to work. 5. Call: Remind/Refuse 6. Pulse: Continual pulse heart rate monitor, night sleep care Infrared detect mode. 7. Message/APP: Remind/show message, customize apps permission. 8. Sport: Time, calories, steps, distance, pace, even recognize swimming posture. 9. Alarm: Smart vibration 10. Sleep: Auto track, professional multi-pattern such as snap, TruSleep by CDB, Harvard. 11. Convenience: Lift wrist to show, sedentary alarm, timer, stopwatch, brightness etc. 12. Swimming: 5ATM(swim or shower in not-hot water), show swimming time and calories. (Fashion Edition inapplicable). 13. Strap: Silicone strap(Sports Edition), leather and silicone strap (Fashion Edition, not waterproof). 14. Sensors: Gyroscope, accelerometer, geomagnetic sensor, barometers, Light sensor, optical heart rate sensor.