ERS 220

ERS 220 sensory systems. Compared to the 210, back sensors are expanded along with the addition of a head touch sensor. An aux light is added. The back lamps duplicate the tail lamps in the 210. The CPU runs at approximately twice the speed of most stock 210s. Programs for the 210 will run on the 220.

Aibo Energy Station. It functions in the same way as described for the 210.