The iWatch Series 8 uses a magnetic charger, the same as the previous iWatch series. The charger is magnetic and can be easily attached to the back of the iWatch and connected to a power adapter or computer via a USB port for charging. It provides a fast and safe charging experience, ensuring that your iWatch is always fully charged. In addition, the iWatch Series 8 also supports wireless charging, which can be used with a compatible Qi wireless charger to make charging more convenient.