Xiaomi Watch S4 Smartwatch with Heart Rate & Blood Oxygen Monitoring (CN version)

The Xiaomi Watch S4 is a sophisticated smartwatch featuring a vibrant 1.43-inch circular display and powered by Xiaomi HyperOS for seamless performance. It offers comprehensive health tracking including optical heart rate monitoring and manual blood oxygen measurement. Stay connected and convenient with Bluetooth calling capabilities, built-in speaker, and versatile NFC functionality for door access and public transport. Designed for durability with 5ATM water resistance and an impressive 15-day standard battery life, the Watch S4 is your ideal companion for an active and connected lifestyle. (CN version)

water proof: 5ATM model: Watch S4 Dial size: 47mm Certified Model: M2502W1 Product Size: 12mm high App Installation: support Blood oxygen monitoring: Manual measurement speaker: Built-in speakers Crystal material: Plexiglas Standard battery life: 15 days Product Weight: 44.5g Call Type: Bluetooth calling Bluetooth version: Bluetooth 5.3 NFC function: NFC bus card Power supply mode: Magnetic charging cable Wristband color: Light colors Dial shape: Round Heart rate monitoring: Optical monitoring Host model: Xiaomi Watch S4