AT&T steps into the age of LTE Android phones with the LG Nitro HD (known elsewhere as Optimus LTE). Featuring a massive 4.5″, 1280 x 720 pixel display and a 1.5GHz dual-core processor, Nitro HD hits AT&T stores December 4th with a $249.99 (with two-year contract) price tag. Along with that giant display and powerhouse processor, the phone also supports AT&T’s new LTE network. AT&T’s LTE is only lit up in a few markets right now, but if you want to futureproof yourself an LTE phone is the way to go.

Nitro HD ships with Android 2.3.5 onboard, though an upgrade to Ice Cream Sandwich (4.0) is said to be in the works. It also packs an 8MP camera with 1080p video capture, a front cam for video chat and self-portrait applications, and 4GB of internal storage backed by a microSD card slot. And at 10mm thick, Nitro’s profile is pretty decent for an LTE device.

But don’t just take our words for it – click PLAY on the video above and check out the AT&T Nitro HD for yourself.