The LG Optimus 3D Max has cleared FFC, under the model number LG-P720h, and is heading to AT&T.

The device appears to be supporting 3G and HSPA+, not 4G LTE, using AT&T's speeds. The phone has also been known as the CX2 or 3D Cube in other regions. While the device doesn't bring huge changes from the original Optimus 3D - which also joined AT&T under the name LG Thrill 4G - the device looks competitive.

The device comes with a 1.2 GHz dual-core chip and 1GB of RAM, along with a 4.3-inch screen with a 480 x 800 pixels resolution. However, the phone - as the name suggests - offers glasses-free stereoscopic 3D and picture viewing. The phone also supports LG's 3D UI and games using 3D. The phone has cameras front and back; both are five megapixels.

During the Mobile World Congress in February this year, Android Community spent some time with the device.

At the time, the site said the device was lighter and thinner despite being bigger. The LG NOVA screen also improved brightness and reduced dimming from the original Optimus 3D.

The device comes with Android 2.3 Gingerbread, with the back of the phone curving out at the bottom like the Galaxy S. The phone features the customary four Android buttons across the bottom, rather than LG's usual three. LG has also brought along their UI, which is built around 3D.

"All in all it's a worthy successor to the original Optimus 3D, and those who have fallen in with lenticular 3D ... will appreciate the Optimus 3D Max," Android Community concluded.

The original Optimus 3D received criticism from users, after updates weren't issued. Promised in October 2011, the AT&T version received no Gingerbread update and LG stopped responding to users asking about the situation. When users asked AT&T about the update, they were referred to LG. However, the phone is upgradeable through computer from Android 2.2 Froyo to 2.3.5 Gingerbread.

Optimus 3D may not get OTA Gingerbread update but Ice Cream Sandwich - Android 4.0 - has been confirmed to be coming to the original Optimus 3D in Q3 2012.

The device was released June 11, 2011 in the U.S., arriving a month later on July 7 in the UK. The device was pitched as the world's first 3D smartphone.

(reported by Jonathan Charles, edited by Surojit Chatterjee)