We have already seen the phone in various pictures and video and a unique placement of the volume rocker has it on the back along with other buttons. It leaves the phone sans buttons on front. Interestingly, one of the units that we saw pictured earlier was running on Sprint's pipeline, and considering that the LG Optimus G, the predecessor of the LG G2, was offered by the mobile operator, we'd be very surprised to see Sprint bypassed for the sequel.
The LG G2 will have a 5.2 inch screen with resolution of 1080 x 1920 (FHD) which presents a pixel density of 424ppi pixel density. A quad-core Qualcomm Snapdragon 800 processor is under the hood with 3GB of RAM on board. The phone has a 13MP rear-facing shooter.
source: FCC via Engadget