Product parameters

Product model: M2303B1

Main body net weight: about 22.5g (excluding the weight of the wristband)

*The actual weight may vary depending on the configuration, oil production process, and measurement method. Please refer to the actual product.

Main body size: 46 x 33.35 x 9.99mm (excluding heart rate boss)

*The actual size may vary depending on the configuration, manufacturing process, and measurement method. Please refer to the actual product.

Screen size and type: 1.74 inches, AMOLED color square screen

*The actual size may vary depending on the configuration, manufacturing process, and measurement method. Please refer to the actual product.

Screen resolution: 336 x 480 PPI 336, supports full-screen touch operation

Screen brightness: up to 600nits, supports automatic brightness adjustment cover

Material: 2D straight screen tempered glass cover

Shell material: fiber high-strength polymer + NCVM

Sensor: acceleration sensor

Gyroscope sensor optical heart rate and blood oxygen sensor

Ambient light sensor

Waterproof level: 5ATM

*SATM waterproof level (equivalent to 50 meters underwater depth), supports swimming in pools, shallow harbors and other shallow water activities, but not suitable for hot showers, saunas and diving, and needs to be protected from direct impact of high-speed water flow during water sports. The waterproof function is not permanent and may weaken over time.

Data connection: support GNSS, support NFC, Bluetooth 5.3.

*Support Beidou, GPS, GLONASS.Galileo.QZSS five satellite systems

Vibration motor: rotor motor

Battery capacity: 289mAh

Battery type: lithium-ion polymer

Battery charging time: about 80min

*Charging time test data comes from Xiaomi laboratory. In actual use, charging time is related to various factors such as environmental solubility and battery life, which may differ from laboratory data.

Applicable wrist size: 135 - 210mm

Wristband material: TPU

*TPU material supports antibacterial

System language: Simplified Chinese, Traditional Chinese, English

Support system: Android 6.0 or iOS 12.0 and above Support App: Xiaomi Sports Health

Packing list

Watch head × 1

Wristband × 1

Charging cable × 1

Instruction manual × 1