For the first several years of its existence, the iPad was defined by its 1024x768 9.7-inch screen.
The original iPad weighed in at 1.5 pounds, but with the iPad 2 shaved that down to just 1.3 pounds, thanks to advances in the technology inside its revised design.
Despite the iPad becoming lighter and easier to hold, many people were clamoring for an even smaller iPad. In October 2012, Apple answered their call with the iPad mini.