Key features

• •【IMPORTANT NOTE】Bestobal activity bracelet include HEART RATE and SLEEP MONITOR can monitor your heart rate to help you do exercise scientifically. It also accurately monitors effective sleep time and motions every night (including light sleep and deep sleep) and wake you up with a silent vibrating alarm. （Note: only after you have slept for three hours will it judge that you are asleep.Therefore, this product is not suitable for monitoring short periods of sleep）.
• •【MULTI-FUNCTION SMART BRACELET】This Smart watch band with 14 training modes helps you understanding every activity data and GPS can monitor your activities track. It has a waterproof rating of IP67(works under water up to about 1 meter). High quality comfortable strap made from durable and waterproof materials, easy to install and remove at any time.
• •【OLED TOUCH SCREEN & CALL MESSAGE REMINDER】 Heart rate monitor, pedometer, sync date and time, anti-lost alert, alarm alert and sedentary alert etc with OLED display screen. Fitness watch will vibrate to remind you when your phone receives a call/SMS/social message, never miss any message or call.
• •【BUILT-IN USB CHARGER & WIDE COMPATIBILITY】 The host comes with a standard USB port, no charging cable needed. Long lasting battery: about 5-8 days standby time or 4 days operating time when full charged, charging time is about 1-2 hour. App supports most smart phones with Bluetooth 4.0 or above. Support system: iOS 7.1 or above like iPhone 7/6/6s/se/5 , Android 4.4 or above like Samsung S8/S7 LG HTC.（Note: It cannot work with tablet and computer and windows system）.
• •【WARRANTY AND SUPPORT】 30 days full refund, 1 year warranty.If you have any problem, please send us a mail with your order ID,we will reply within 24 hours.