Phone Function: Make phone call directly from the smart watch?? including answering and dial-up. SIM slot??support make calls by Bluetooth Mode or Smartwatch Mode</br>Ant-lost Function: Seek mobile phone?? Tow-way anti lost; Sync Function: QQ?? Wechat?? Twitter?? Facebook. HD display: High sensitive capacitive touch screen</br>Multi Functions: Passometer?? Sleep Tracker?? Message Reminder?? Call Reminder?? Answer Call?? Dial Call?? Remote Control?? Push Message?? Altitude Meter</br>Compatibility: All Android Phone and Android Tablet PC. Android Mobile Phone: Samsung?? HTC?? Sony?? LG?? HUAWEI?? ZT" so on. iOS Mobile Phone only use by bluetooth: iPhone 6?? iPhone 6 plus?? iPhone 5?? iPhone 5s ?? iPhone 4?? iPhone 4s (This APP can' t be installed by iOS?? Apple system can' t sync SMS and Bluetooth push information?? but other functions can be used by iPhone); Android Tablet PC: Samsung?? Nexus?? Onda?? Newsmy?? and so on</br>Note: This watch is Bluetooth 3.0. All functions support android 4.3 and up smart phones. But for iphone?? not it just support answer & call?? phone book?? music play?? camera?? clock?? pedometer?? phone anti-lost alert. Still not support SMS?? Radio?? remote camera control?? sleep monitoring?? etc</br></br>Product Description</br></br><b>Specifications:</b><br> Facade Specification <br> Size: 39x56x13mm (1.53*2.2*0.51inch)<br> Appearance fish technology: Stainless steel wire drawing <br> Net weight: 113g(4oz)<br> <b>Hardware Specification:</b><br> CPU: MTK6261D<br> Memory: 32M+32M; Support max 32GB TF card <br> Display: 1.54"n ratio: 240x240 pixel <br> Touch screen: OGS capacitive screen <br> Bluetooth: Ver.3.0 <br> Camera: 0.3M <br> Battery: 380mAh Stand by:More than 7days; Use for:More than 2days <br> Acceleration sensor: Support:3D acceleration?? Step gauge analysis??Sedentary remind?? Sleep monitoring?? Anti lost?? Remote picture <br> G-sensor: Yes <br> <b>Main function: </b><br> Phone function: GSM/GPRS 850/900/1800/1900; Call??hand free??call record??phone book;Bluetooth ph