Xiaomi Smart Band 9 Active - Green

Refresh Rate & Brightness: 60 Hz refresh rate, up to ~450 nits brightness - Responsive visuals, good sunlight visibility Watch Faces: Over 100 customizable options - Personalize your band Sensors: PPG heart-rate sensor, accelerometer; vibration motor (ERM-type) - Core health metrics & alerts Battery: 300 mAh, up to 18 days typical use, under 120 min full charge - Long standby and quick recharge Water Resistance: 5 ATM (up to 50 m) - Safe for swimming and everyday exposure Wireless: Bluetooth 5.3 BLE -Stable connection with smartphones Compatibility: Android 8.0+ / iOS 12.0+ via Mi Fitness app - Broad smartphone support Fitness Modes: 50 built-in modes, expandable to over 100 in Mi Fitness app - Track diverse workouts Health Tracking: Continuous heart-rate, SpO₂, sleep monitoring (including sleep stages), stress level, women’s health - Extensive wellness tracking tools Additional Features: Notifications (calls, messages, apps), idle alerts, music & camera control, alarm, stopwatch, weather, phone finder, flashlight, compass, barometer - Practical smart utilities