4G Wifi GPS LBS real time positioning, More precise positioning than 2G net watch. GPS is suitable for outdoor(especially in open areas); WIFI is suitable for indoor and save your traffic data; LBS depends on the density of the communication base station and where you are.It's also can check location history through the day. Know where your children are anytime. - CJC 1.69'' large screen kids smart watches with HD camera and SOS button .Kids can make & receive video calls/voice message/real-time pics via the 4g smart watch phone to their parents. When the child is in danger, kids can press SOS button for 3 seconds and circularly call 3 SOS numbers you set for help until someone answers it. -Before buying the watch, please make sure that your area has 4G network coverage. The kid watch SIM card supports Speedtalk and so on, and supports GSM and WCDMA. The smart watch for kids is available to connect WiFi. You can use basic functions even without a sim card.❤NOTE: Please turn off the smartwatch before inserting the SIM card. -Multifunctional Kids Smart Watch: Children's smart watch has functional applications designed for children and parents.Two way call, gps location,sos,phone book,voice message,HD camera,multiple screen styles,remote power off,class mode,bluetooth,gravity sensor,pedometer,WeChat,safety fence,muti-language. Package Includes 1* Kids Smartwatch2* Charging Cable1* User Manual1* Take Card Tool1* Replacement Silicone Strap1*Watch Screen Protector