Blackview BV6600Pro rugged unlocked phone offers 4G global bands network, can work with GSM network carriers(only for US) like T-Mobile, MetroPCS, Mint Mobile, Movistar, Telcel, Tigo, Claro, Bell Wireless, Rogers Wireless, Chatr, Luck Mobile, Virgin Mobile, Telus, Public Mobile, Fido, SaskTel, etc. It Does NOT work with CDMA Carriers such as Verizon, Sprint, Boost Mobile, or U.S.Cellular❌Does NOT work with AT&T AND CRICKET WIRELESS CARRIER'S NEW SIM CARD AFTER 2020! This phones unlocked BV6600Pro has an integrated thermal imaging camera feature, by locating the heat source, and translates it into a thermal image to see and measure. You can view the situation from a different perspective, finding hidden pets, hidden dangerous animal in outdoor. Equipped with high capacity 8580mAh battery and low-power processors, the unlocked phone can be used for long standby time and also charge tablets. Suitable for business trips or other outdoor activities. With 4GB RAM + 64GB ROM (expandable up to 128GB), Blackview celulares unlocked has enough space to download all your favorite music, videos and photos. This smartphone driven by MT6762V Octa-core processor, runs extremely fast and smooth. On clearance Android phone works excellent in outdoor. Ideal birthday gift.