<b>Almost every customer will receive English User Manual from us if you didn't block seller's mail. If not, please come back to us.<br>Default language is Chinese. You could change it by some easy steps.</b><br><b>1.1" AMOLED display</b> <br>Display resolution:：126*29 <br>Display colour depth:：16 bit <br>Display backlight:：Maximum brightness ≥ 450 nits, adjustable <br>Display button：One touch-button (wakeup, return) <br><br><b>High precision 6-axis sensor and PPG heart rate sensor</b> <br>6-axis sensor: Low power-consumption 3-axis accelerometer and 3-axis gyroscope <br>PPG heart rate sensor <br><br><b>14-day extra-long battery life with magnetic charger</b> <br>Charging method: Magnetic charging <br>Charging time: < 2 hours <br>Battery life: ≥ 14 days <br><br><b>11 professional sports modes</b> <br>Supported exercises: Outdoor running, power walking, cycling, indoor running, pool swimming, freestyle, indoor cycling, elliptical, jump rope, yoga, rowing machine <br>Supports automatic running or walking detection, pace alerts, completed kilometer alerts, high heart rate alerts <br><br><b>24-hour heart rate and sleep monitoring with women's health tracking</b> <br>Heart rate monitoring: Whole-day heart rate manual heart rate, resting heart rate and heart rate curve<br>Stress monitoring, breathing exercises, PAI vitality index assessment, idle alerts, step counter, goal setting <br><br><b>Other features</b> <br>Remote photo-taking, music playback, find my phone, phone muting, phone unlocking, incoming call notification, do not disturb, WhatsAPP notification, app message alerts, OTA upgrades <br><br><b>Specifications</b> <br>Body net weight: 11.9g <br>Body dimensions: 46.95 × 18.15 × 12.45 mm <br>Waterproof rating: 5ATM <br>Wireless connection: Bluetooth 5.0 BLE <br>Haptic motor: Rotor motor <br>RAM: 512KB <br>Flash memory: 16MB <br>Adjustable length: 155-219mm <br>Battery capacity: 125mAh <br>Battery type: Lithium-ion polymer battery