Mi Smart Band 9 Active - Black

Dimensions
45.9 x 26.94 x 9.99mm 
*Height, width and thickness dimensions exclude the strap and protrusions.*Actual dimensions may vary due to differences in configuration, manufacturing processes, and measurement methods. Please refer to the actual product.
Weight16.5g (without strap)
Band Strap
Adjustable length:135–215mm
Material:TPU
Display
1.47" TFT display
Resolution:172 x 320 pixels, 247 PPI
Material:Reinforced glass cover
Watch faces:100+
Sensors
PPG sensor - Accelerometer - Motor: ERM
Battery
Charging type:Magnetic charging
Charging time:Less than 120 minutes
Typical use time:Up to 18 days
Capacity:300mAh
Fitness
50 fitness modes
Health
Heart rate monitoring
SpO₂ tracking
*The SpO₂ feature is not intended for diagnosis, prevention, monitoring, prediction, prognosis of any disease, investigation of physiological processes or any other medical purpose. All data and tracking should be used for well-being and personal reference only. If you feel uncomfortable, please rely on professional medical devices or consult a doctor for assistance.
Sleep tracking
Women's health management
*This feature should not be used or relied on for any medical purposes. It may not accurately predict your menstrual cycles or related information. All data and tracking should be used for personal reference only.
Stress measurement
Specifications
5ATM water resistant
App: Mi FitnessBluetooth® 5.3 BLECompatibility: supports smartphones with Android 8.0/ iOS 12.0 and above