Garmin has unveiled a new version of the vivoactive 3 Music - an LTE-connected smartwatch that works on the Verizon network. This is the company's first LTE-enabled watch. Anyway, you don't need a phone on Verizon's network or indeed any phone to use this watch. It can send and receive text messages, but not make calls. The main use of the 4G connection is LiveTrack - sharing your location with friends in real time. There's also an emergency mode that will alert pre-selected contacts when you hold down the button (the watch can also automatically detect an incident while you're walking or...