Humanoid & robot atlas
AIBO ERS-110
Photo: Morgan from Montreal, Quebec, Canada, CC BY 2.0, via Wikimedia Commons
DiscontinuedSucceeded by AIBO ERS-111 JapanFully autonomous

Sony Group Corporation · robot dog

AIBO ERS-110

Sony's first AIBO robot dog, with 18 degrees of freedom and an approximate weight of 1.6 kg including battery and Memory Stick, announced in May 1999 as a limited online edition.

Price
$2,500Cheaper than 43%
Height
—Not published
Weight
1.6 kgHeavier than 5%
Payload
—Not published
Speed
—Not published
Battery
—Not published
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Why it matters

The IEEE recognises AIBO as the first mass-market consumer entertainment robot; the first run sold out online in about 20 minutes.

Real-world use

Limited run of 5,000 units (3,000 Japan, 2,000 US) sold from 1 June 1999.

Timeline

First shown
1999-05-11
Released
1999-06-01
Sony announces the first AIBO, ERS-110

Maker

Sony Group CorporationCompany · founded 1946 · Tokyo, Japan

public company (TYO: 6758; NYSE: SONY)

How it stacks up

Against other robot dogs that publish the figure. Pick a measure.

  1. BigDogBoston Dynamics (with Foster-Miller, NASA JPL and Harvard; DARPA-funded) · 2005110 kg
  2. HyQIstituto Italiano di Tecnologia (IIT) · 201180 kg
  3. HyQ2MaxIstituto Italiano di Tecnologia (IIT) · 201580 kg
  4. Spot (now called Spot Classic)Boston Dynamics · 201572.5 kg
  5. LittleDogBoston Dynamics · 20052.2 kg
  6. AIBO ERS-110Sony · 19991.6 kg
  7. AIBO ERS-7Sony · 20031.6 kg
  8. AIBO ERS-220Sony · 20011.5 kg

AIBO ERS-110 is heavier than 5% of the 41 other robot dogs that publish a weight. Bars show the 7 closest in date.

Weight 1.6 kg 0.3 kg130 kg #39 of 42 · heavier than 5%

Not published by the maker: height, speed, payload, battery.

Public attention

A historic robot: no longer sold or in use, so it is not ranked against current machines.

  • 3,196 views of its Wikipedia article in the last 90 days (AIBO)
  • 1 news story from reputable press listed on this page

Measures how much people read and write about a robot, not how good it is. Measured 2026-10-14; same method for every robot. How it is measured

What’s inside

The parts the company has talked about publicly.

Movement
Walks on legs · 18 joints
How it runs
Fully autonomous. In autonomous mode, it walked and reacted to its surroundings using its own programmed judgement; separate game and performance modes accepted user commands.
Actuators & motors
Small motors driving 18 joints in the legs, neck, tail and jaw (Sony's description); later models list 20 DoF.
Sensors & vision
Colour camera, range finder, microphones, touch sensors, acceleration and angular-velocity sensors.
Compute
64-bit RISC processor with 16 MB RAM; Sony's Aperios real-time OS; software on Memory Stick.
Battery & power
Lithium-ion pack (about 1.5 hours of play per charge for early models).
AI & software
OPEN-R modular architecture; behaviours driven by instincts and emotions. A non-commercial OPEN-R SDK came later.
Other details
Designed by artist Hajime Sorayama; won Japan's Good Design Grand Prize. Used in RoboCup's four-legged league in 1999-2000.

Lineage

Every Sony machine in order.

  1. AIBO ERS-110AIBO ERS-1101999Discontinued
  2. AIBO ERS-111AIBO ERS-1111999Discontinued
  3. AIBO ERS-210AIBO ERS-2102000Discontinued
  4. AIBO ERS-31x (Latte, Macaron, Pug)AIBO ERS-31x (Latte, Macaron, Pug)2001Discontinued
  5. AIBO ERS-220AIBO ERS-2202001Discontinued
  6. AIBO ERS-7AIBO ERS-72003Discontinued
  7. aibo ERS-1000aibo ERS-10002017Commercial

Sony Group Corporation also makes 3 humanoids. See every Sony Group Corporation robot

Watch AIBO ERS-110

Video: AP Archive on YouTube. Plays from youtube-nocookie.com when you press play.

Made, sold and where

Unit counts are usually company figures; analysts often disagree.

Price
$2,500250,000 yen (about US$2,500) at launch
How to get one
No official buying page found
Built
5,000 units (3,000 for Japan, 2,000 for the US)
Sold or delivered
Sold out; the Japanese allocation went in about 20 minutes on 1 June 1999. ERS-110 and ERS-111 together sold about 65,000
Where it is sold or used
Japan (Sony)
Customers and pilots
Consumers in Japan and the US; universities and RoboCup teams

News

The latest 1, newest first. Summaries are ours; tap through for the original.

  1. Sony ends Aibo repair service

    IEEE Spectrum reported that Sony had stopped maintaining the original Aibo dogs, citing a lack of spare parts, leaving owners to independent repair shops.

    IEEE Spectrum

Sources

Figures come from press coverage. Every link below backs something on this page.

Sony Sony Launches Four-Legged Entertainment Robot Wikipedia AIBO Sony Marketing (Japan) AIBO Official Site: history of AIBO (Japanese)

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