Xiaomi Smart Band 9 Pro Obsidian Black Wristband Activity tracker

Technical specifications:

Dimensions: 43.27 × 32.49 × 10.8 mm (without the heart rate sensor)

Net Weight: Approx. 24.5 g (weight without the strap)

Display:


Size and Type: 1.74-inch AMOLED Touch Display

Resolution: 336 x 480 pixels

Screen Brightness: Maximum 1200 nits with auto brightness adjustment

Cover Material: 2.5D reinforced glass


Shell Material: Aluminum alloy frame and high-strength fiber polymer

Sensors:


Accelerometer

Gyroscope

Electronic compass

Optical heart rate and pulse oximeter

Ambient light sensor


Water Resistance Rating:


5ATM (50 meters in depth)

Note: Suitable for swimming pools and shallow-water activities, but not for hot showers, saunas, or diving.


Data Connection:


Supports GNSS, Bluetooth® 5.4

Satellite Systems: BeiDou, GPS, GLONASS, Galileo, and QZSS


Haptic Motor: Linear motor

Battery:


Capacity: 350 mAh

Charging Type: Magnetic charging

Charging Time: Approx. 75 minutes


Compatible Wrist Circumference: 135–205 mm

Band Strap Material: TPU

Operating System Compatibility: Android 8.0 or iOS 12.0 and above

Compatible Apps: Mi Fitness app

Items included:


Crown × 1

Strap x 1

Charging cable x 1

User manual x 1