LG Finally release LG Optimus G, the first phone to employ the Snapdragon S4 Pro chipset.
Its display size is 4.7 inch. Same as Galaxy S III and HTC One X. I don't know about the best size of smartphone display, it's depend on each person. But what I can say is, with a bigger display, it will be fun to use, hard to carry.
LG Optimus G Processor
LG Optimus G has Quad-core 1.5 GHz Krait for its CPU and Adreno 320 for its GPU.
Display
as I mentioned before It has 4.7 inches True HD-IPS + LCD capacitive touchscreen, 16M colors display with 768 x 1280 pixels resolution. Using Corning Gorilla Glass for its material.
Camera
this smartphone has 13 MP/8 MP camera (market dependent), with autofocus and LED flash technology. it has Geo-tagging, face detection and image stabilization feature. It can record video for full HD 1080p @30fps and has LED video light. For video call activity, it has 1.3 MP for its front camera.
Memory
LG Optimus G has 32 GB internal memory and 2 GB RAM. because the internal memory is already 32 GB, it doesn't have external memory slot.
Operating System
LG Optimus G using Android OS v4.0.4 (Ice Cream Sandwich), but they planned to upgrade it to v4.1.1.