So the Samsung Galaxy S4 isn't doing it for you (or you don't want to spend the extra dough for one on T-Mobile's new contract-free plans) but you still want that sweet, sweet LTE speed. No worries: the carrier has been planning on releasing an updated model of the still-popular Galaxy S III to take advantage of their fledgling long term evolution network. Tmo's Galaxy S III LTE is available now on the web store, for $549.99 outright. You can also choose to pay $69.99 down and $20 a month over 24 months. It looks like the phone is only available in white at the moment.