Features:<br />[HD Display] 1.09-inch color screen with 240*240 resolution offers clear and vivid picture quality. Vacuum plated watch case features comfortable and smooth touching experience.<br />[Music Control] Enter the music playback interface and control the music freely with one-key operation. Enjoy the music and relax yourself anytime.<br />[Health Monitor] Automatically monitor and record your heart rate and sleep data, helping you adjust yourself for a healthier lifestyle. <br />[Fitness Activity Tracker] Support 8 different sports modes, such as running, cycling, basketball, climbing, etc. The activity tracker can accurately record your all-day sports data, such as step, distance, and calories.<br />[Smart Reminder] Provide synchronous display of message, call or social APP to remind you of important information. Sedentary reminder, anti-lost reminder and many other practical smart reminders make you life easier and happier.<br />[Long-Lasting Battery Life] With built-in 150mAh rechargeable battery life, it offers normal use time for 5-7 days and up to 25 days standby time.<br />[IP67 Waterproof] Can be worn while washing hand or in rain, meeting the waterproof needs of daily life.<br />[More functions] Stopwatch, Alarm clock, Find phone, Sports goal setting, Countdown, Do not disturb mode, Find bracelet, Brightness adjustment, etc.<br/>Parameters:<br />Screen Size: 1.09 inches<br />Resolution: 240 * 240dpi<br />BT: 4.0<br />Compatibility: Android 4.4 and above or iOS 8.2 and above<br />MCU: Realtek8762C<br />Memory: ROM 64KB<br/>Battery Type: Polymer Lithium Battery<br />Battery Capacity: 150mAh<br />Charging Time: 2H <br />Working Time: 5-7 days<br />Standby Time: 25 days<br />App: RaceFitPro<br/>Specifications:<br />Model: B37<br />Case Material: Zinc Alloy<br />Strap Material: TPU<br />Color: Black / Silver / Blue / Gold (Optional)<br />Water-Resistant Level: IP67<br/>Dial Size: 43.5 * 43.5mm<br />Dial Thickness: 9.8mm<br />Strap Width: 20mm<br />Item Weight: 55g / 1.94oz<br />Package Size: 15.2 * 9.8 * 2.4cm / 5.98 * 3.86 * 0.94in<br />Package Weight: 133g / 4.69oz<br/>Package List:<br />1 * Smart Bracelet<br />1 * Charging Cable<br />1 * User Manual