In the past few months, we have covered plenty of smart bags that can autonomously follow their owner. If you know coding and Arduino, you can always build your own. The good people a Hacker House have shared a video that shows what it takes to make an autonomous “follow me” cooler with Arduino.
The cooler connects to your smartphone via Bluetooth and uses GPS coordinates from it to follow you. The developers used open source Arduino libraries and off-the-shelf libraries to build this robot.[Source]