Made by LG
flagship Android phone
successor to the Google Nexus.
Based on the Optimus G.
being sold unlocked on the Google  Play store 8GB for 299 and a 16GB for 399.

As you may expect, the design is a cross between the Galaxy Nexus and the LG Optimus G.

Being sold by T-mobile on contract for $199

Replaces the Google Nexus made by Samsung.

Similar look to the, 
surrounded rounded soft-touch band.

The Nexus 4 has a more solid
Gorilla Glass on both front and back, which improves the look and feel - but comes at the cost of durability.

Feels solid and sturdy in your hand. elegant design.
4.7 inch IPS LCD display 1280x768 resolution. great viewing angles. bright, crisp and clear.
crisp and clear
Colors seem mildly washed-out.
There is no LTE version of the Google Nexus 4, which is very disappointing given that LTE has become the standard.
HSPA+ is quick…but not LTE quick.

4th generation smartphone to carry the 'Nexus' moniker.

8MP auto-focus camera with LED flash on the back, 1.3MP on the front.

Running Jelly Bean 4.2, which includes gesture typing and gesture camera-input that allows you to access all of the camera's features using just one thumb. Google Now has received a significant update and there have been a number of other additions to email, search and notifications.

Qualcomm Snapdragon S4 Pro, quad-core processor clocked at 1.5GHz
2GB of RAM inside, with NFC

Wireless charging, compatible with the Google Wireless Charging Orb

Conclusion:
Cons: glass back, lack of LTE
Pros: Best version of Android.