Xiaomi Watch S5 balances battery life and functionality

The Xiaomi Watch S5 features a proprietary operating system rather than Wear OS, resulting in a trade-off between functionality and battery life. While the lack of Wear OS limits app availability and overall functionality, the device offers significantly better endurance than many competitors.

The Watch S5 is equipped with an 815 mAh battery. Xiaomi claims the device can last up to 21 days under ideal conditions, though real-world testing with features like the always-on display and health tracking enabled resulted in approximately ten days of battery life.