Stay fit and healthy with the Huawei Watch 3. It tracks your activities and health data such as heart rate, blood oxygen, and sleep throughout the day. With the sharp 3.63 cm (1.43 inch) AMOLED display, you can always keep an eye on all your data. To ensure that the Huawei Watch 3 doesn't need to be charged constantly, the built-in battery offers a runtime of up to 14 days.