Here is a robot that doubles as a personal transporter to make your life easier. The Segway Ninebot LOOMO robot can achieve speeds up to 11 mph and move 22 miles on one charge. It has anti-slip tires for smooth rides outdoors. LOOMO can follow you autonomously.
The robot has an RealSense ZR300 camera that enables mapping and obstacle avoidance. You can use LOOMO’s Android SDK to do more with the robot.