1, different appearance: millet watch S2 is designed with a flat surface, millet watch S3 uses a 1.43-inch AMOLED screen.
2, different functions: Xiaomi Watch S2 supports WeChat reply, body temperature monitoring, playing music, etc., and Xiaomi Watch S3 supports recording, finding devices, Bluetooth broadcasting, unlocking the phone, energy monitoring, calendar, world time, locking away from the wrist, and continuous bright screen.