LG Optimus G AT&T specs

Design
Dimensions	5.15 x 2.82 x 0.33 inches 131 x 72 x 8 mm
Weight	5.19 oz (147.0 g)
Keys	Left: Volume control; Right: Lock/Unlock key
Colors	Black, White

Display
Size	4.7-inch
Resolution	1280x768px, 318 PPI
Technology	IPS LCD
Screen-to-body	67.10 %
Colors	16 777 216
Features	Ambient light sensor, Proximity sensor

Hardware
System chip	Qualcomm Snapdragon S4 Pro APQ8064
Processor	Quad-core 1500 MHz Krait
GPU	Adreno 320
RAM	2GB (DDR2)
Internal storage	16GB
Storage expansion	microSDXC up to 64 GB
OS	Android (4.1.2, 4.0.4)

Battery
Capacity	2100 mAh
Type	Li - Polymer

Camera
Rear	Single camera
Main camera	8 MP (Autofocus)
Flash	LED
Video recording	1920x1080 (Full HD) (30 fps) Video calling
Front	1.3 MP

Connectivity & Features
Bluetooth	4.0
Wi-Fi	802.11 a,b,g,n Hotspot, Wi-Fi Direct
USB	microUSB, USB 2.0
Hearing aid compatible	M3/T3
HDMI	Yes
Location	GPS, A-GPS, S-GPS, Glonass
Sensors	Accelerometer, Compass
Other	NFC, Tethering, Computer sync, OTA sync

Multimedia
Headphones	3.5mm jack
Speakers	Earpiece, Loudspeaker
Features	Album art cover, Background playback
Screen mirroring	DLNA,MHL

Cellular
4G (FDD)	Bands 17(700 b), 4(AWS-1)
3G	Bands 5(850), 2(1900), 1(2100)
Data Speed	LTE, HSPA, UMTS

Phone Features
Notifications	Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features	Voice dialing, Voice commands, Voice recording

Regulatory Approval
FCC approval	Date approved: Aug 31, 2012 FCC ID value: ZNFE970
Measured SAR	Head: 0.67 W/kg Body: 1.22 W/kg Simultaneous Transmission: 1.22 W/kg Wireless Router: 1.22 W/kg

Buyers information
In The Box	Travel charger, USB data cable, Battery, Quick start guide

Availability
Officially announced	Oct 03, 2012

AT&T

I decided on this device because it was Quad core with 2GB of RAM and LTE for $99 on-contract. Similar devices are $199 and $299. The phone screams past other devices in performance. The screen is beautiful, the build quality is top notch, the UI is light and un-obtrusive. Video editing software that came preloaded is a bonus.
A few qualms that I encountered were the skinned browser (I just used chrome instead), the stock android keyboard, and an unimpressive camera.
Big no-no's that I encountered were terrible reception in rural areas. I travel a lot and found myself with no signal in places that my GS3 and Lumia have 1 bar and EDGE for data. Being a bit of a power user, terrible battery life overall. IIt takes about 2hrs to charge fully. Unfortunately, I can kill the battery in 4hrs with my average use. I forgot my car charger once and drove around with no phone for 4hrs. Unacceptable.
Overall I love the phone, living with the poor battery life is a small price to pay for the performance I expect from my phone. I now carry a 16,000mAh backup battery. The reception issue is a deal breaker though. If you don't venture away from cities or power outlets too much this is probably the greatest phone deal you can encounter.