Sphero mini

Sphero Mini
Sphero Mini is a smaller version of the Sphero robot, with a diameter of 42 millimetres (1.7 in) and weighs 46 grams (0.101 lb). It is the first Sphero robot to have interchangeable shells. These shells are very colorful, and come in white, blue, pink, green, and orange. The Mini is the cheapest robot made by Sphero at $49. The Mini has a new feature called face drive which lets the user drive the robot through the app with different head movements. The Mini is charged with a micro USB port, which means that unlike the Sphero 2.0, it is not waterproof.