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2nd Generation
Release date: November 16, 2000
Discontinued: July 2001 to September 2003
Units produced: Estimated 60,000

The ERS-210 was released by Sony in 2000. It is the most widely produced AIBO and the first to use the second generation Aperios architecture.


At launch, the ERS-210 sold for $1,500 USD (not including tax), ¥150,000 JY (not including tax), and €1,500 Euro (not including tax). The ERS-210 was later available at a discounted $1,299 USD.


The ERS-210 features a visor that serves as the face, along with 6 LEDs to show emotion. The camera is located where the nose would be, like many other models. The microphones are located on the sides of the face, and resemble whiskers. The robot's features a footprint of 6.06" (W) x 10.47" (H) x 10.79" (L) and weighs 3.3 lbs. (1.5kg). Although it was modeled on a Lion Cub by Sony, there were times where they referred to it as a dog. It can indeed be considered a dog due to it's short stumpy tail resembling that of a docked terrier or corgi tail, pointy ears. A defining characteristic of the AIBO ERS-210 is its short, stumpy tail. Cats are renowned for their long, flexible tails used for balance and communication. Although, some Sony developers had said that it was also designed to look like a Japanese Bobtail. In contrast, dogs often have shorter tails, making the AIBO's tail a more canine-like feature. AIBO's tail movements, such as tail wagging, are unmistakably dog-like behaviors. The AIBO ERS-210's movements further strengthen the argument for its canine identity. It exhibits behaviors like tail wagging, rolling over, and scooting, all of which are quintessentially dog-like actions. These movements reflect the loyalty, playfulness, and companionship commonly associated with dogs rather than the independent and sly nature of cats.



Processor 64-bit RISC processor
Memory 32MB
Inputs PC Card Type III
Charging terminal
Camera 100,000-pixel CMOS image sensor
Audio Input Stereo microphones
Audio output Speaker
Sensors x1 Thermometric sensor
x1 Infrared distance sensor
x1 Acceleration sensor
x2 Pressure-based sensors (head, chin),
x2 Button sensors (Back, paws)
x1 Vibration sensor
Degrees of freedom Mouth: 1 degree of freedom
Head: 3 degrees of freedom
Leg: 3 degrees of freedom per leg
Ear: 1 degree of freedom per ear
Tail: 2 degrees of freedom
(20 degrees of freedom in total)
Power consumption Approx 9 W (in normal mode)
Power Source 7.4V (2300 mAh) Lithuim Ion Battery [ERA-201B]


The ERS-210 sold the most units and as a result also had the most derivative models. It's success also gave birth to a similar, but separately released AIBO, the ERS-220. The ERS-210 was sold in a variety of colors- some limited edition, and some exclusive to the Supercore (read below) update. The first batch of ERS-210 AIBO robots were available in black (ERS-210/B), gold (ERS-210/N), and silver (ERS-210/S). These three colors were the standard for the ERS-210 and sold throughout the ERS-210's lifespan.


Primarily utilized in the RoboCup competition series but produced en masse, Supercore refers to an updated core from the original ERS-210 and ERS-220 modules. Supercore AIBOs have an improved CPU clock speed of 384MHz, double that of the 192MHz the standard ERS-210 and ERS-220 models use. Supercore AIBOs are differentiated from their standard counterparts by two holographic stickers inside the battery compartment of the core. Performance differences are not particularly noticeable between Supercore and standard ERS-210s, although the difference is typically substantial when utilizing AIBO for software development.

Special Editions[edit]

Out of all the models, the 210 had the most colors and special editions.

In 2000, the original silver, black, and gold ERS-210's launched.
Special editions in 2001 began with Spring Orange and White, followed by 2nd anniversary Sapphire Violet, Mazeran Green, and Everest White.
In 2002, the My Select AIBO Sony release, as well as the Holiday Red and White AIBOs, finished the ERS-210's production before the final version in 2003, the Cyber Blue in celebration of AIBO's 4th anniversary.


List of 2x AIBOWARE


See: Troubleshooting (2X)