? HD Full-color screen and multiple interface styles ? The 0.96-inch IPS Color screen offers excellent HD image quality. The intelligent light sensor automatically adjusts the brightness of the screen according to the ambient light.unique Breathe Lighting effect?Change different lighting effects as heart rate changes.The super designed design makes it quite different from other smart bracelets. ? Vibrate to remember: Calls / SMS / SNS / Sertiary Alerts ? Vibrate to alert you when your phone receives a phone call, SMS text messages and SNS messages, including Facebook / Twitter / WhatsApp / Linkedin / Instagram / Messenger / Wechat, etc. . Simply connect the tracker to your phone via Bluetooth and configure it in the application, you will never miss a call and a message. ?Dynamic Heart Rate and Auto Sleep Monitor?fitness tracker monitors dynamic heart rate, uploading the real time data of heartbeats to phone app. Also support automatic sleep monitoring:it records deep sleep, light sleep and awake states. All health data show as a chart, Clearly show your physical health throughout the day ?Longer Battery Life? 90mAh rechargeable battery and the low-power-consumption bluetooth chip makes the recharging time less than 1 hour with standby time be max 5-7 days. The App supports most of smart phones with bluetooth 4.0 or above(not for tablet). ?Buy worry-free? 100% new 100% genuine each watch is provided with a 24-month warranty and a 30-day 100% refund full refund guarantee. We care about our customers. If you have any questions about the watch, please contact us in time and we will get back to you within 24 hours.