During prolonged use, the Xiaomi Electric Shaver S200 will become slightly warm, but this does not affect its performance or harm the skin. If you feel discomfort due to heat, please stop using the shaver and allow it to cool before continuing.
For your reference, the reasons why the shaver becomes warm are as follows:
1. The motor inside the shaver generates heat during prolonged use as it powers the blades to move. Continuous operation without breaks causes the motor to heat up slightly;
2. As the shaving head moves across the skin, there is friction between the foils and blades, which can also contribute to a small amount of heat buildup;
3. The battery inside the shaver will produce heat while discharging, especially during longer shaving sessions. This is common in rechargeable devices.