For Android system it supports anti-lost phone book remote camera and notification push including emailcalls Facebook Twitter.</br>For iphone system it only supports partial functions including Pedometer Calendar Call SyncStopwatch Handsfree  it supports music player handsfree/making calls.</br>Support sleep monitorsedentary remindcalculate the number of steps calorie consumption records and mileage calculation functions Fitness App for Android & Apple IOS .</br>Distance and altitude  host with USB port charging  with high sensitive capacitive touch screen The position of NFC on the strap close to smart phone can 4.2.3 The position of NFC on the strap close to smart phone can fast finsh the bluetooth connect ion.</br>Phone function:Make phone call directly from the smart watch including answering and dial-up. SIM slot support make calls by Bluetooth or smart watch  Bluetooth 4.0 Watch LCD Touch Intelligent Wristwatch With Camera NFC Support SIM Card Tracking Phone Anti-lost Call Message Sync for Andorid Smart phones .</br></br>Product Description</br></br><b>WFB Description: </b><br> 1. The high-definition display?? capacitive touch sensitive screen; precision full bonding process; <br> 2. TPU85 of material strap?? anti-sweat matte surface treatment?? the ultimate ergonomic convex design?? wearing more comfortable; <br> 3. Ultrasound closed aluminum sound chamber?? listening to the sounds of nature; <br> 4. 450mAh capacity polymer battery?? ultrasound technology?? safe and reliable;<br><br><br> <b>Specification: </b><br> TK6260A; 360MHZ <br>RAM: built-8G<br> Display:1.54 inch TFT HD LCD; resolution: 240 * 240 pixel <br> Touch scree