A:Answer The LTE version AKA GPS+Cellular is an option for opening service from one of the phone companies like Verizon, T-mobile, etc. on the watch as a stand-alone for around $10 more a month. If you have that service, it works without your phone in GPS, texting and even making calls, although kind of hard since the screen is very small to work with. You can connect Bluetooth earbuds directly to the watch so you don't have to put your head directly to the watch looking like an old fashion James Bond from the 1950s 007 movies.