• 【Large AMOLED Display】1.72-inch AMOLED screen with 212x520 resolution and full-touch support, featuring a 1500nits brightness for clear visibility even in bright sunlight.
• 【Premium Design】Elegant symmetrical aesthetics with a 2.0mm ultra-narrow bezel, 2.5D reinforced glass, and aluminum alloy middle frame combined with high-strength polymer fiber.
• 【Advanced Health Monitoring】24/7 health tracking including blood oxygen, heart rate, and sleep monitoring, powered by a self-developed adaptive physiological perception algorithm for more accurate sleep detection.
• 【Comprehensive Fitness Tracking】Over 150 sport modes with advanced metrics like VO2 max, recovery time, training effect, and training load. Features AI swim stroke recognition and 9-axis posture detection for 95% accuracy in swim lap counting.
• 【Bluetooth-compatible Heart Rate Broadcasting】Real-time heart rate data can be sent to cycling computers, allowing users to monitor their heart rate without raising their wrist, enhancing convenience and safety.
• 【Water Resistance】5ATM water resistance rating, suitable for swimming and other water activities.

Specifications:

• Model: M2457B1
• Display: 1.72-inch AMOLED, 212x520 resolution
• Screen Brightness: 1500nits with auto-adjustment
• Materials: 2.5D reinforced glass, aluminum alloy frame, high-strength polymer fiber
• Sensors: Accelerometer, gyroscope, geomagnetic, optical heart rate, blood oxygen, ambient light
• Water Resistance: 5ATM
• Wireless Connectivity: Bluetooth-compatible 5.4
• Vibration Motor: Linear motor
• Battery: 233mAh lithium-ion polymer
• Charging Time: Approx. 60 minutes
• Adjustable Wristband Length: 135-210mm
• Wristband Material: TPU
• Supported Languages: Simplified Chinese, Traditional Chinese, English
• Compatible Systems: Android 8.0 and iOS 14 or above
• Supported App: Mi Fitness
• Dimensions: 46.57 x 22.54 x 10.95mm
• Weight: 15.95g (without strap)