Xiaomi Watch3 is equipped with Qualcomm Snapdragon Wear4 100 processor, while Xiaomi Watch4 is equipped with a more powerful Qualcomm Snapdragon Wear4 100 processor.
Xiaomi Watch3 and Xiaomi Watch4 are also different in functional characteristics. Both watches support heart rate monitoring, sleep monitoring, pedometer and other functions, and Xiaomi Watch4 has also added such additional functions. Support blood oxygen monitoring, respiratory monitoring and other health functions, but also with IP68 waterproof function, more assured of daily use.