Xiaomi Watch S4 Smartwatch (CN version)

Experience advanced health and smart features with the Xiaomi Watch S4. This smartwatch boasts a vibrant 1.53-inch AMOLED display, all-day heart rate and blood oxygen monitoring, 5ATM water resistance, and convenient NFC for public transport and access. Enjoy seamless Bluetooth calling and an impressive battery life of up to 16 days, powered by Xiaomi Surge OS2. (CN version)

Call Type: Bluetooth calling Blood oxygen monitoring: Real-time monitoring For people: General Screen display: color Power supply mode: Magnetic charging Heart rate monitoring: Manual measurement Certified Model: M2425W1 model: M2425W1 Extreme battery life: 16 days Product Size: 12mm high Blood pressure monitoring: Does not support blood pressure measurement Host model: Xiaomi Smart Band 9 Sports Recognition Function: Outdoor running IoT smart ecosystem products: no Bluetooth version: Bluetooth 5.3 water proof: 5ATM NFC function: NFC access card Wristband Material: fluororubber Standard battery life: 15 days