+ Faster processor, ARM11
+ 40-pin GPIO header, backwards compatibility with previous models, can reuse extenders and HATS.
– Ethernet, have to use USB slots

Of all the things we do at Raspberry Pi, driving down the cost of computer hardware remains one of the most important. Even in the developed world, a programmable computer is a luxury item for a lot of people, and every extra dollar that we ask someone to spend decreases the chance that they’ll choose […]

Source: Raspberry Pi Zero: the $5 computer – Raspberry Pi