Apple Inc has teams investigating a push into personal robotics, a field with the potential to become one of the company’s ever-shifting “next big things”, according to people familiar with the situation.

Engineers at Apple have been exploring a mobile robot that can follow users around their homes, said the people, who asked not to be identified because the skunk-works project is private. The iPhone maker also has developed an advanced table-top home device that uses robotics to move a display around, they said.