Replying to: Poor 3G coverage, better 4G? by andy2373
You will almost certainly get better data service, but it won't help with voice coverage in the short term because (right now) voice traffic passes over the 2G network, which is 850 MHz.
Verizon stated many months ago that they plan to move voice traffic to the LTE network as quickly as they can, and I suspect that will be months away rather than years away. I haven't checked specific models lately, but not all current LTE phones will be capable of using the voice-over-LTE network once the switch is flipped. Do your homework and choose one that will work on the new standard.