Animoji

Animoji, also referred to as "Animated Memoji", are large animated emoji that are tracked to the motion of the user detected by TrueDepth cameras of certain Apple devices.

History
The first device to support Animoji was the iPhone X, released in 2017 running iOS 11. In 2018, iOS 12 added support for Memoji, in which the Animoji could be customized to resemble the user or other characters.