Sphero started out making products that were toys first and foremost, but its tiny personal robots have slowly become more education-oriented, and the new Bolt is the most bookish of them all. Share ...

In recent years, Sphero is probably best known for its rolling BB-8 toy based on the chipper droid from the Star Wars sequels, as well as a tiny robotic R2-D2 that’s surprisingly animated and lifelike ...