Wheel-and-caster mobility
Robotsguide describes wheel-and-caster feet for better balance, and says the robot moves at the pace of people walking. [2]
Price & availability
Hitachi, Ltd. has not published a price
Discontinued
Current dataset status: Discontinued.
Product overview
About Hitachi EMIEW3
EMIEW3 is a wheeled service humanoid that Hitachi, Ltd. announced in Tokyo on 8 April 2016. Hitachi designed it for customer support and guidance in shops and other public facilities. The robot is 90 cm tall and weighs 15 kg, and Hitachi gives its top speed as up to 6 km/h, matching human walking pace.
The announcement described a robot that can detect people who need help and approach them to start a service interaction. The release also describes indoor network cameras used to locate people and objects, voice processing that works against background noise, and collision avoidance for people who suddenly appear from blind spots.
Robot database Robots Guide lists 23 degrees of freedom, a lithium iron phosphate battery rated at about 3 hours, and wheel-and-caster feet. Hitachi used EMIEW3 in customer proof-of-concept trials. In March 2020, Hitachi announced that the new EMIEW4 would enter commercial operation in April, explicitly describing it as an improvement over EMIEW3. EMIEW3 is therefore listed as discontinued.
Capabilities
Key features
Customer guidance role
Hitachi designed EMIEW3 to find people who need help and approach them to start a service interaction in shops and public facilities. [1]
Sensors for people
Reported sensors include an HD camera, a laser range finder and a 14-channel microphone array. [2]
Superseded by EMIEW4
Hitachi used EMIEW3 for proof-of-concept trials before launching commercial operations of the improved EMIEW4 in April 2020. [1][3]
Hardware profile
Specifications
Official — stated by the manufacturer or organizerReported — stated by a credible third partyEstimated — derived or approximate
Body
Mobility
- Maximum speed
- 1.67 m/sOfficial — stated by the manufacturer or organizer[1]Up to 6 km/h (Hitachi 2016 release), matching the pace of people
Power
- Runtime
- 3 hReported — stated by a credible third party[2]Lithium iron phosphate battery, 3 hours of operation per robotsguide
Hands & Manipulation
- DoF per hand
- 1Reported — stated by a credible third party[2]Per robotsguide: 1 DoF per hand
- Hand / end effector
- One-DoF handsReported — stated by a credible third party[2]Per robotsguide
Compute & Sensing
- Sensors
- HD camera, Laser range finder, 14-channel microphone arrayReported — stated by a credible third party[2]
Show unknown fields (8)
Mobility
- Peak joint torque
- Not published
- Actuation
- Not published
Power
- Battery
- Not published
- Charge time
- Not published
- Swappable battery
- Not published
Hands & Manipulation
- Payload
- Not published
Compute & Sensing
- Onboard compute
- Not published
- AI stack
- Not published
Quick answers
Hitachi EMIEW3 FAQ
Can you buy Hitachi EMIEW3?
No general order page is verified. Hitachi EMIEW3 is currently classified as discontinued. [1]
How tall is Hitachi EMIEW3 and how much does it weigh?
Hitachi EMIEW3 is 90 cm tall and weighs 15 kg (Portable weight per Hitachi's 2016 release). [1]
How fast is Hitachi EMIEW3?
Its stated maximum speed is 1.67 m/s; Up to 6 km/h (Hitachi 2016 release), matching the pace of people. [1]
How long does the Hitachi EMIEW3 battery last?
The stated runtime is 3 hours per charge; Lithium iron phosphate battery, 3 hours of operation per robotsguide. [2]
How many degrees of freedom does Hitachi EMIEW3 have?
Hitachi EMIEW3 has 23 listed degrees of freedom; Per robotsguide; Hitachi's release gives no DoF count. [2]
Who makes Hitachi EMIEW3?
Hitachi EMIEW3 is made by Hitachi, Ltd., based in Japan. [1]
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Evaluation footprint
Benchmarks & competitions
No benchmark embodiments or results reference this robot yet.
Related
Similar robots
Evidence
Sources
- [1]Humanoid Robot "EMIEW3" and Robotics IT Platform for Customer Services ↗Hitachi, Ltd. · official · accessed Oct 8, 2026
- [2]EMIEW - Robots Guide ↗Robots Guide · database · accessed Oct 8, 2026
- [3]Commencement of Commercial Operations for EMIEW4 Communication Robot ↗Hitachi, Ltd. · official · accessed Oct 8, 2026