43.27 × 32.49 × 10.8mm, (without the heart rate sensor) | Actual dimensions may vary due to differences in configuration, manufacturing processes, and measurement methods. Please refer to the actual product.

Approx. 24.5g (weight without the strap) | Actual weight may vary due to differences in configuration, manufacturing processes and measurement methods. Please refer to the actual product.

Obsidian Black, Rose Gold, Moonlight Silver

1.74-inch AMOLED Touch Display | Actual dimensions may vary due to differences in configuration, manufacturing processes and measurement methods.

336 x 480 pixels

Maximum 1200 nits with auto brightness adjustment

2.5D reinforced glass

Aluminum alloy frame and high-strength fiber polymer

Accelerometer, Gyroscope, Electronic compass, Optical heart rate and pulse oximeter, Ambient light sensor

5ATM

Supports GNSS, Bluetooth® 5.4 | *Supports BeiDou, GPS, GLONASS, Galileo and QZSS satellite systems.

Linear motor

350mAh

Magnetic charging

Approx. 75min | Charging time test data comes from Xiaomi Internal Lab.

135–205mm

TPU

Android 8.0 or iOS 12.0 and above

Mi Fitness app