Anti-sweat design: Use Two-color molding strap. Structure of perspiration groove on the back strap. Not afraid of sweat. Exquisite Design: Multi-function dial Reinforced mineral glass 316L stainless stee1.2 inch HD round screen.</br>MTK2502/ Large-capacity 380mAH polymer lithium battery/Semiconductor high sensitivity</br>Four Health Features: ALL day record your drip sport.Heartrate sensor of the second generationSedentary ReminderBuilt-in pedometer accuracy of industry has high standards PSG</br>Bluetooth 4.0 compatiable with ios and android phones:iphone 7/6s/6 plus/5/5s and Samsung s7/lg/huawei.Convenient notification--Unprecedented tacit agreement.it includeds Text Messaging Skype QQ Calls News Reminder of updata etc</br>Automatic Light UP: Intelligent power-saving; Gravity sensing system automatic; Indentification  Light up screen.</br></br>Product Description</br></br>Highlights:<br> 1.Heart rate monitor<br> With an optical heart rate detector it will record your heartbeat so as to change your bad habits to build a healthy body<br> 2.PSG<br> Automatic tracks your sleep time and quality including deep sleep light sleep and awake<br> 3.Sedentary reminder<br> Remind you to stand up for a while after keeping long-time of sitting pose?? switch an unhealthy lifestyle<br> 4.Sports record<br> Track your sports distance?? calories burned?? time?? goal?? etc.?? it will help analysis sports state to improve your plans<br> 5.Information pushing<br> Supports Face book?? Twitter?? incoming call?? SMS?? etc.<br> 6.Large capacity battery<br> 380mAh polymer lithium battery?? longer using time<br> 7.Multi languages<br> Asian version: supports multi languages: English?? Indonesia?? Malaysia?? Poland?? Vietnam?? Hebrew?? Arabic?? Persian?? Thai?? Myanmar<br> EU/US version: supports multi languages: English?? French?? German?? Italian?? Portuguese?? Portuguese (Brazil)?? Russian?? Spanish?? Turkish<br><br> F