The Pocket Cube is a 2x2 version of a Rubik's Cube. It contains just 8 corners.
The record for one Pocket Cube solve is 0.96 seconds by Erik Akkersdijk at the Geneva Open 2008. Feliks Zemdegs holds the record for an average of 5, with 2.12 seconds.
Other types [change]
There is a Pocket Cube with only pink and green, called the Junior cube. On one side there is a monkey face on it.
The Eastsheen company also has Pocket Cube, but it is much larger. Each side is about 5 centimeters bigger.
A Rubik's Ice Cube has translucent (partly see-through) stickers. The plastic is light blue.
Verdes Innovations has a Pocket Cube called the V-Cube 2. There is a V-Cube 2b. It has a pillow shape to it.
Ways to solve [change]
There is more than 1 way to solve a Pocket Cube. The 2 usual are Guimond and Ortega. Using one way, someone can solve a Pocket Cube in less than 5 seconds. Very fast, but with lots of moves to know, ways are Stern-Sun (SS), Erik-Gunnar (EG), CLL, and more.