UBTECH is behind some of the most interesting educational bots. The UBTECH Jimu Robot is a programmable bot that your kids can build easily and control from their iOS or Android devices. They will be able to expand them with additional servos or character kits. The Animal Kit enables your kids to build different animals easily.
The kit supports Blockly and Swift coding. It comes with 3D building instructions and preset movements. Ships for under $70 at this time.