These trackers are discreetly designed to be compact and simply concealable, allowing for them for being covertly put on belongings or vehicles for covert tracking reasons. ★★【4G GPS Tracker】 : it could perform with 2g/3g/4g networks, additional immediate, more secure. You should have more choices when buying a SIM card https://nogu.org.uk/forum/profile/trackerfit/