With the LTPO display and the brand-new Always-On Display watch faces, you can see the most important information of the Huawei Watch 4 at a glance. The 1.5-inch display of the smartwatch has been specifically designed for visual comfort. It features an ultra-slim bezel and an extremely high screen-to-body ratio of 72%. Additionally, it has a clear and organized layout: the customizable quick access bar provides access to the most frequently used functions. Everything you need is right at your fingertips. Health Glance captures seven important parameters simultaneously, including heart rate, SpO2 level, respiration, and arterial stiffness. The results can be printed via an app and shared with others. Thanks to new and improved electrode technology, the capture of ECG signals is now even more accurate and responsive. Simply touch the electrode on the side for 30 seconds to receive real-time data that can help detect common heart conditions early. With the 8-channel heart rate sensor and ECG signal capture, you will be notified if your heart rate is too high or too low, or if arrhythmias are detected. With a user-customized sleep tracker, you can sleep soundly. It can accurately record sleep and wake times, recognize short naps, and provides scientifically based tips on how to sleep peacefully through the night. Just 15 minutes of wireless fast charging provides enough power for a whole day, and a full charge takes only 60 minutes. This watch is equipped with a graphene 3D heat dissipation system, which increases heat dissipation by 16%.