It can support up to 180 voice commands. In particular, its visual system has been further improved, improved image recognition capabilities, and embedded pattern recognition functions. One application of this function is to use 15 "AIBO cards" to communicate with users. The card expresses commands such as "photography", "movement direction", and "charging" in the form of images. After the AIBO robot dog sees the AIBO card through the built-in CMOS solid-state imaging element, it starts acting according to the image pattern. It can execute 15 commands printed on special cards such as "sit down" and "take pictures". It can also find bone-shaped attachments and hold them in its mouth.

In addition, through pattern recognition, the AIBO robot dog's ability to walk to a dedicated charger for charging has also been improved. On the special charger "Energy Station" there is a logo for identification with an image pattern printed on it. The image pattern is similar to a 2D barcode, which changes as the viewing angle changes. After the AIBO robot dog sees this kind of sign, it can determine the relative position between itself and the sign (charger) based on changes in the image mode, and can quickly determine the positional relationship. When the battery in the body is close to being exhausted, the AIBO robot dog no longer just sends a reminder to the owner, it will automatically run to a dedicated charger to recharge itself.

The face of the AIBO robot dog is built with 28 4-color (white, red, blue, green) light-emitting diodes (LEDs), which can express emotions and states such as happiness and sadness through the flashing mode. In addition, an integrated sound card is installed that can play 64 polyphonic tones, allowing you to express emotions with richer sounds. The AIBO robot dog is also equipped with "AIBO signal" application software such as the WWW server function and UPnP function launched in May 2003. It has a built-in wireless LAN function, allowing you to download personalized data from the Internet via a personal computer, and add dedicated game content or music data.