Xiaomi Smart Band 9 Black

Design & Build

• Dimensions: 46.53 x 21.63 x 10.95 mm (excluding strap)
• Weight: 15.8g (without strap)
• Frame: Aluminum alloy
• Strap: TPU, adjustable from 135–210 mm
• Colors: Midnight Black, Glacier Silver, Mystic Rose, Arctic Blue
• Water Resistance: 5ATM (up to 50 meters)

Display

• Type: 1.62-inch AMOLED touch display
• Resolution: 192 x 490 pixels
• Brightness: Up to 1200 nits (adjustable)
• Refresh Rate: 60Hz
• Always-On Display: Yes

Battery

• Capacity: 233mAh
• Charging: Magnetic charging cable
• Charging Time: Approximately 1 hour
• Typical Usage: Up to 21 days

Sensors & Health Features

• Sensors: Accelerometer, Gyroscope, Optical heart rate, Ambient light
• Health Monitoring:
• Continuous heart rate monitoring
• Blood oxygen (SpO₂) tracking
• Stress monitoring with breathing exercises
• Sleep tracking (including REM)
• Menstrual cycle tracking
• Motor: Linear motor for haptic feedback

Sports & Activity Tracking

• Modes: Over 150 sports modes
• Features:
• On-wrist running courses
• Advanced workout metrics
• Guided breathing sessions
• Weather updates
• To-do list and focus mode

Compatibility & Connectivity

• App: Mi Fitness (version 3.26.0i and above)
• Compatibility: Android 8.0 or iOS 12.0 and above
• Bluetooth: 5.4