HD IPS Touch Screen:1.54 inches Full Round Screen240*240 PixelIt has an awesome display as well as the hypersenstive touch.</br>As a Phone :When you insert the Nano GSM SIM Card you can directly make or answer the phone callalso send or view messages.If notyou can connect the watch to phone by Bluetooth then you can make or answer phone call also can view messages too.</br>2in1 Card Slot:Patent Design for Card SlotTF Card and SIM Card are 2in1.Communication anytime anywhere.It Supports GSM850/900/1800/1900 MHz.(Note:The SIM Card and TF Card are not included in the Package.)You can listen to the music on your TF card in the watch using your bluetooth headphone.</br>Main functions:Pedometer Audio Player Phone Book Anti lost Sedentary Reminder Sleep Monitor Remote Camera Calculator Sound Recorder Smart Wake-up Phone Call Brower Facebook What App File Manager Calendar Notes World Time Alarm Calculator Timer.</br>Functions Support:100% compatible with all Android phone it only supports partial functions (Pedometer Calendar Call Sync?? Calculator?? Clock?? Stopwatch?? Music player) for iPhone and (Sync Message?? Notification?? Remote capture?? Anti lost) will not work for iPhone.</br></br>Product Description</br></br><b>Please Note??</b><br> Scan the app(Quick response) in the watch to download the app(Funrun which only support Android) to your Android phone??so remote control and sync message function can't be used for IOS.<br> <br><b>PCBA Specification:</b><br> UTMS/WCDMA Band:N/A<br> GSM Band:850/900/1800/1900<br> OS and Version:MTK Nucleus<br> Chipset No.:MTK6261D<br> Multi SIM:Single Nano SIM Card<br><br> <b>Memory Specification:</b><br> Internal Memory for storage (ROM+RAM):32MB+32MB<br> Max External Memory Support (T Flash) (GB):Support Max 32GB TF Card<br><br> <b>Display:</b><br>