HUAWEI WATCH GT 2e allows you to live your life with passion. No worries about the battery life with the HUAWEI's self-developed chip Kirin A1 bolstered by intelligent power-saving algorithm. You can play for 2 weeks with your GT 2e smart watch. The 1.39" AMOLED HD touchscreen with various attracting HUAWEI watch faces presenting all kinds of data and notifications for you. Take your GT 2e, and 85 custom workout modes are waiting for you to explore; indoor/outdoor running/walking, elliptical, and rowing, pick whichever you like and it will be automatically detected and tracked all the same; desire meticulous route-tracking during your outdoor workouts? It's already there for you to check thanks for both GPS and GLONASS positioning systems. 15 professional sports including climbing, running, swimming and cycling, VO2Max monitoring, 24/7 real-time heartrate and stress monitoring, sleep tracking and analyzing, music playing via Bluetooth, 5ATM, smart notifications for calls/messages/emails...nothing will be missed with your HUAWEI WATCH GT 2e smartwatch. Your wearable device may not be able to detect your sleep status if you slept for less than 30 minutes, resulting in a failure to record your sleep data. When HUAWEI TruSleepTM is enabled, your device may not be able to detect your sleep status correctly if you wear your device too loosely. It is recommended that you wear your wearable properly during sleep and try to avoid moving too much. If you are sleeping on public transport, such as on the metro, bus or train, the movement of the vehicle may affect the recorded sleep data. The strap of the HUAWEI Band 4e is made of flexible materials. If worn incorrectly, it will be unable to detect that you are wearing it, resulting in a failure to record your sleep data.