One of the first robot-pets on the market, Poo-Chis were robot dogs made by SEGA Toys, distributed by Tiger Toys. The dogs came with a bone that could let them react, a sound sensor, a light sensor, a biorhythm, IR ports to talk to other Poo-Chis, and emotive eyes. They were popular and loved, so why did they die out? They became obsolete. FurReal Friends could do everything Poo-Chi did, just while fluffy. That caused it to quickly die out. Honestly, I’d grab one for myself if I wasn’t so forgetful. I’d take care of it. (Oh, I made myself sad.)
from Wikipedia's Poo-Chi Page.