Dingtool Uwatch U100 Smart Watch Bracelect With GPS Tracker GSM Position MIC Smart Watch Phone for Kids(APP support Android system) (Black) Screen size:0.96 inch Screen resolution:64*128 Support SIM card and remote GPS phone 2G Band:GSM850/900/1800/1900MHz Funtions:Health pedometer, GPS data upload(support set),Stopwatch,Alarm clock,Browse on the internet,Replacement strap,Location based service,Wifi based service