Character: bb-8
BB-8 is a robot character from Star Wars in similar fashion as C-3PO and R2-D2.
BB-8 is a round white robot with orange circles around his body, and a hemispherical head floating on top of his body. The robot moves around by rotating his main body.
Although all three robots are called 'droids' in the Star Wars universe, by e621-classification only C-3PO is an android. R2-D2 and BB-8 are robots, but not androids.
This tag implicates star_wars (learn more).