Xiaomi Watch S1 Active Smart Watch

Dimensions: 46.5x47.3x11mm (Excluding Strap & Protrusions) Weight: 36.3g Frame Material: Glass fibre-reinforced polyamide Strap Size: 160～220mm Display: 1.43 inch AMOLED, anti-fingerprint coating, 466×466 Resolution, adjustable Sensors: Heart rate sensor (with blood oxygen sensor), accelerometer, gyroscope, geomagnetic sensor, atmospheric sensor, ambient light sensor Satellite positioning systems: Beidou/GPS/GLONASS/Galileo/QZSS Microphone Speaker Bluetooth Calls SOS Emergency Contact Alexa Voice Assistant Built-In Blood Oxygen Saturation Detection, Heart Rate Monitoring, Sleep Monitoring, Stress Monitoring, women's health tracking 200+ Watch Faces 100+ Fitness Modes Water Resistance: 5ATM Bluetooth® Version: 5.2 Wireless connection: Wi-Fi IEEE 802.11b/g/n 2.4GHz NFC Battery Capacity: 470mAh (Magnetic Charging) Typical use time: 12 days Package contents: Watch/Magnetic charging cable/User Manual (including warranty notice)