Meet the EZ-Robot Roli Rover Robot: an educational kit you can play around with to learn more about robots. It is highly customizable with 13 EZ-bit connections for additional add-ons. The robot has a built-in camera and offers vision tracking and speech recognition. You can interact with the robot from your iOS or Android smartphone.
This rover-style robot can travel long distances and negotiate rougher areas. It can be customized to pick up and move objects. Sets you back $399 at this time.