The Xiaomi Smart Band 9 Pro is a lightweight fitness tracker with a 1.74-inch AMOLED screen, built-in GPS, and a battery life that lasts up to 21 days.
Display and Design
- Screen: 1.74-inch AMOLED touch display.
- Resolution: 336 x 480 pixels (336 PPI).
- Brightness: Up to 1200 nits peak brightness with auto-brightness adjustment.
- Body Material: Aluminum alloy frame with high-strength fiber polymer.
- Glass: 2.5D reinforced glass.
- Dimensions: 43.27 x 32.49 x 10.8 mm.
- Weight: 24.5 grams (without the strap).
- Colors: Obsidian Black, Rose Gold, Moonlight Silver, Cream White.
Health and Fitness Sensors
- Sensors: Optical heart rate monitor, pulse oximeter (SpO2), accelerometer, gyroscope, electronic compass, and ambient light sensor.
- Tracking: Continuous heart rate, blood oxygen, stress levels, and sleep monitoring.
- Sports Modes: Over 150 sports modes with automatic exercise detection for select activities.
- Running Metrics: Built-in running courses and advanced metrics like cadence and stride length.
Connectivity and System
- GPS: Independent five-satellite GNSS (GPS, GLONASS, Galileo, BeiDou, QZSS).
- Bluetooth: Bluetooth 5.4.
- Compatibility: Android 8.0 or iOS 12.0 and higher.
- App: Mi Fitness app.
- Water Resistance: 5 ATM (up to 50 meters deep).
Battery and Power
- Battery Capacity: 350mAh.
- Battery Life: Up to 21 days under normal usage conditions.
- Charging Type: Magnetic charging.
- Charging Time: About 75 minutes.



