Seven Carriers and National Retail Channels Open Sales of LG G4LG Celebrates with Free G4 Accessories, Opens Pre-orders for Leather Back Covers /PRNewswire/ --LG Electronics today announced that the LG G4 is officially on sale online and in stores through major carriers, including Verizon, AT&T, Sprint, T-Mobile, and U.S. Cellular, as well as national retailers Best Buy and Amazon.com. This marks a momentous launch for LG and its highly sought-after flagship that features a fresh take on smartphone design.