Marty
Marty may have a friendly face, but it is a powerful learning platform, designed to give children a fun and practical experience with coding, robotics and engineering. A good walking robot that you can build yourself.
Marty is simple yet sophisticated and it looks like a smart toy, but it has the characteristics of a real robot.
You can start programming it with Scratch and then use Python, JavaScript and even with Raspberry Pi + ROS.
Marty is an open platform that can be made entirely with a 3D printer.
With WiFi you can connect to Marty, it has 9 controllable motors with a force sensor, an accelerometer and 8 GPIO ports.
Marty website: https://robotical.io
Kickstarter: https://www.kickstarter.com/projects/robotical/marty-the-robot-v2