Original Xiaomi Smart Band 11, 1.72 inch AMOLED Screen 5ATM Waterproof Smart Watch, Support Blood Oxygen / Heart Rate Monitor, Smart Band 11 Black, Smart Band 11 Silver, Smart Band 11 Pink Gold

Feature
1. 72-Inch Track-Shaped Display: Features a track-shaped display with 2.0 mm four-sided bezels, showcasing a sleek and symmetrical aesthetic. With global brightness increased to 2000 nits, the display remains clear and visible even under direct outdoor sunlight.
2. 150+ Sports Modes: Whether running, cycling, swimming, yoga, boxing, or other activities, start your workout anytime and accurately track your performance. The new Activity Rings visually present your daily exercise progress, helping you track every step forward.
3. Professional Swimming Mode: Monitors heart rate in real time, with AI swim stroke recognition and nine-axis motion sensing for turn detection. Accurately records swimming laps with an accuracy rate of up to 95%.
4. Bluetooth Heart Rate Broadcasting: Real-time heart rate data can be transmitted to a cycling computer, allowing you to check your heart rate without raising your wrist for greater convenience and safety.
5. Sleep HRV Monitoring: Monitors sleep HRV metrics with an upgraded sleep algorithm, AI-powered sleep insights, and guidance. Intelligently identifies key factors affecting sleep quality to help improve sleep and enjoy more restful nights.

Specifications
1. Model: M2616B1
2. Screen size and type: 1.72-inch AMOLED display
3. Screen resolution: 212x520, supports full-screen touch
4. Screen brightness: 2000 nits, supports automatic adjustment
5. Cover glass material: 2.5D reinforced glass
6. Casing material: Aluminum alloy middle frame + high-strength fiber polymer
7. Sensors: Accelerometer, gyroscope, geomagnetic sensor, optical heart rate & blood oxygen sensor, ambient light sensor
8. Water resistance rating: 5ATM
9. Wireless connectivity: Bluetooth 5.4
10. Vibration motor: Linear motor
11. Battery: 233mAh lithium-ion polymer
12. Charging time: Approx. 90 minutes
13. Adjustable strap length: 135-210mm
14. Strap material: TPU
15. System languages: Simplified Chinese, Traditional Chinese, English
16. Supported systems: Android 8.0 and iOS 14 or later
17. Supported app: Mi Fitness (Xiaomi Sports Health)
18. Dimensions: 47.44x23.66x9.99mm
19. Weight: 15.58g (excluding strap)
20. Battery life: 21 days