???This smart watch will only work with GSM networks:GSM850/900/1800/1900MHz. Unlocked for Worldwide use. Please ensure local area network is compatible.   for Network Frequency of your country. Please check with your carrier/provider before purchasing this item.<br />Main Feature：<br />SOS emergency alert<br />When meet emergency， children can press SOS button for 3s， watch will call Family number <br />directly， parents will know the current situation in time.<br />Safety area <br />The smallest radius of the fence is 500m. Alert will happen when the children are outside the fence.<br />Low Battery Alert<br />When the Battery of watch is less than 20 percent，alert will happen and watch automatically sent alert information to phone of monitor number and App<br />Dismantle Alarm <br />After wearing the watch over 3 minutes， when unpack the strap， the APP will receive the dismantling alarm information. This function also can be closed when you don’t want to wear the watch<br />Pedometer<br />Record the steps you take and count the distance to make you fully control your sports<br />Look the watch<br />Send command while the watch is not at hand， the watch will ring for 1 minute so that you can find it out and stop it press any key.<br />Map Tracker<br />Real-time check the location of the watch on the cellphone <br />Notice:<br />This watch is compatible with Android and iOS system， please download APP before using<br /><br /><br /><br /><br /><br /><br /><br /><br />    Specifications<br />Basic Information<br />	 Type: Watch Phone                                                  <br />                        CPU: MTK6261                                                  <br />                        External memory: Not supported                                                	<br />Network<br />	 Wireless Connectivity: GPS， GSM， Bluetooth                                                  <br />                        Network type: GSM                                                  <br />                        Frequency: GSM850/900/1800/1900MHz                                                  <br />                        GPS: Yes                                                  <br />                        Bluetooth: Yes                                                	<br />Camera<br />	 Camera type: No camera                                                	<br />Connectivity <br />	 SIM Card Slot: Single SIM(Micro SIM slot)                                                  <br />                        TF Card Slot: No                                                  <br />                        Micro USB Slot: Yes                                                	<br />Languages<br />	 Languages: English， Chinese                                                	<br />Additional Features<br />	 Additional Features: Alarm， Bluetooth， GPS                                                	<br />Package Contents<br />	 Cell Phone: 1                                                  <br />                        Battery: 1 x 400mAh Battery Bulit-in                                                  <br />                        USB Cable: 1                                                	<br />Dimensions<br />	 Product size: 5.5 x 3.5 x 1.5 cm / 2.16 x 1.38 x 0.59 inches                                                  <br />                        Package size: 11 x 11 x 11 cm / 4.32 x 4.32 x 4.32 inches                                                  <br />                        Product weight: 0.039 kg                                                  <br />                        Package weight: 0.172 kg                                                	<br /><br /><br /><br />                                            <br />                       <br />This Android/Windows device is designed to function specifically with the current Android/Windows OS installed on it. Any alterations such as upgrades， modding with custom ROMs， rooting or flashing the Android device with other firmware will automatically void the device's warranty.<br /><br />                                                <br />