Repliee Q2 mimics such lifelike gestures as eye blinks, speaking, and breathing.

Internal sensors allow Repliee Q2 to react naturally by way of air actuators placed at 42 points of articulation in the upper body. Movement is powered by an external air compressor. The robot is quick enough to react to or fend off a slap and imitates humans with slight shifts in position and the appearance of breathing in the chest. Additionally, Repliee Q2 can further imitate human movement by facing a person with reflective dots placed at key points on the body and by moving in the same fashion. This robot is perhaps the first that deserves to be described with the science fiction term android, or more properly, gynoid, so far used only for fictional robots.