Amazfit Zepp E Smartwatch With Up to 7-Day Battery Life, SpO2 Monitoring Launched. You get 5ATM water resistance and a 188mAh battery that the brand claims can offer up to 7 days of battery life with regular use.
In its basic watch mode, the battery life is said to last up to 15 days. It takes 2 hours to charge the smartwatch completely. The smartwatch body is made from stainless steel and the smartwatch has a single button on it.