Key Features. Up to 2 weeks battery life Monitor your heart rate sleep levels & more 1.39 inch touch screen Bluetooth 5.1 Compatible with i OS & Android Water Resistant up to 50M. Astonishing Power Kirin A1 Huawei's first self-developed wearable chip ensures high operation performance & incredibly low power consumption. Dual-chip design & power saving algorithms ensure the Huawei Watch GT 2 consimes less energy to achieve astonishing power for all day & night support. This smartwatch automaticlly optimises the power consumption for a longer lasting battery. A New Generation Leading the design & craftsmanship of smartwatches with the 3D curved bezel-less watch face of Huawei Watch GT 2 the watch reveals the unique attitude of combining the tribute to classic & the innocation of style Automatic Workout Detection Never miss out on keeping track of your workouts. HUAWEI WATCH GT 2 is now able to sense the start of a workout recognize the workout type & remind you to start tracking it. Your favourite 6 workout types are supported including Outdoor Run/ Walk Indoor Run/ Walk Elliptical & Rower. Real-time Heart Rate Monitoring HUAWEI Tru Seen is now upgraded to version 3.5 to provide a more efficient & accurate real-time personal measurement of your heart rate. Coupled with the intelligent AI heart rate algorithm it monitors your heart rate throughout the entire day even while you are sleeping. Oxygen Saturation Detection Blood oxygen saturation (Sp O2) is one of the important vital signs that can reflect the oxygen supply of the body. HUAWEI WATCH GT 2 supports single-time Sp O2 level measuring helping you detect the level of oxygen in the blood whenever & wherever you need..