The Nexus 4 has been discontinued. It can be purchased used for around 100 USD.
Since the Nexus S, Google brought out the Galaxy Nexus, Nexus 4, and Nexus 5.
Since the question doesn't specify what Nexus the person is comparing it to the Nexus S, here's the order of Nexus phones (and by manufacturer) to date: -HTC Nexus One -Samsung Nexus S -Samsung Galaxy Nexus -LG Nexus 4 -LG Nexus 5
It depends where you are located, but in the US, it is $349 for the 16 GB version, and $399 for the 32 GB version.
The ISBN of Nexus - comics - is 1-59307-398-4.
no it is a phone
You would set it up through whichever carrier network you have your Nexus 4 connected with.
Both phones are manufactured by LG, and they largely have the same architecture. Some of the differences is the G runs on an LTE network (Nexus 4 is HSPA+), has an expandable microSD slot (Nexus 4 has no expandable slot), has a removable battery (Nexus 4 battery is sealed), a 13 megapixel camera available (Nexus 4 only has a 8 megapixel camera), and runs on Android 4.1 Jelly Bean with a manufacturer skin (Nexus 4 has Android 4.3 Jelly Bean stock).
No, the Nexus wireless charger does not have an internal battery. It requires the micro USB charger for it to wirelessly charge a Nexus 7 (or Nexus 4 or 5).
It's unlikely. If and when the Nexus 5 comes out, the remaining supplies of Nexus 4's will be sold out to make way for the next generation device.
The Nexus S is going for about $450. $200 with a two year contract.
The Google Nexus 5 comes with 2GB of RAM.
Nexus 4