Product Description The Huawei Watch GT is accident-proof due to its ceramic bezel design, stainless steel case and DLC coating. At just 10.6mm thick and featuring a dual crown AMOLED display (1.39 ", 454x454 pixels resolution), it's remarkably practical and sleek. The Huawei TruSeen 3.0 heart rate monitor technology enables more efficient and accurate real-time heart rate measurement using a self-learning algorithm and innovative sensors. Modern GPS supports three satellite positioning systems worldwide (GPS, GLONASS, GALILEO) for more accurate, faster and more accurate positioning. In activities, Coaching supports beginner and advanced courses to provide guidance and feedback in real time. The Watch GT offers numerous sports modes for many outdoor, indoor and training activities. A collaborative study with the Harvard Medical School CDB Center has created an excellent sleep monitor program for each sleep cycle. Huawei TruSleep 2.0 identifies common sleep-related problems and offers more than 200 possible suggestions for better sleep.