Dynamixel X-series actuators
The e-manual lists XM430-W350-R actuators with 4.1 N·m stall torque, which it compares with the MX-28 used in the OP2. [1]
Price & availability
$13,764
Msrp · USD · OfficialOfficial — stated by the manufacturer or organizer
Original price: US$13,764.35
Source: ROBOTIS OP3[US] product page (ROBOTIS America store) ↗ · Oct 8, 2026
Regular price on ROBOTIS America store for OP3[US]; item shown as sold out when checked; shipping calculated at checkout
Available to order from 2017
Current dataset status: Commercial.
Listed as sold out on the ROBOTIS America store when checked; ships only within the Americas. Sales contact given on the store is america@robotis.com. [2]
Product overview
About ROBOTIS OP3
The ROBOTIS OP3 is a miniature humanoid introduced in 2017 for research and education. It is about 510 mm tall, weighs 3.5 kg without its skin cover and has 20 actuated degrees of freedom. The current e-manual describes XM430-W350 Dynamixel X-series actuators, an Intel Core i3 NUC computer with 8 GB of RAM and a 250 GB M.2 SSD, and an OpenCR sub-controller.
The sensors include a Logitech C920 HD Pro camera and a 3-axis gyroscope, accelerometer and magnetometer. ROBOTIS documents a 2025 re-release built for ROS 2, with C++ and the DYNAMIXEL SDK as development tools. Its 11.1 V, 3,300 mAh Li-Po battery can be replaced without shutting the robot down. The page does not give a walking speed or runtime.
ROBOTIS America's store lists the OP3 at a regular price of US$13,764.35, but the item was marked sold out when checked. The store ships only within North, Central and South America. The older specification documented through 2023 used a 1,800 mAh battery and ROS 1.
Capabilities
Key features
Intel NUC onboard computer
The 2025 re-release uses an Intel Core i3 NUC with 8 GB DDR4 RAM and a 250 GB M.2 SSD, with an OpenCR sub-controller. [1]
Battery change without shutdown
The 11.1 V, 3300 mAh Li-Po battery can be replaced without shutting the robot down, according to the e-manual. [1]
Camera and inertial sensors
The robot carries a Logitech C920 HD Pro camera and a 3-axis gyroscope, accelerometer and magnetometer, plus RGB LEDs and buttons. [1]
Hardware profile
Specifications
Official — stated by the manufacturer or organizerReported — stated by a credible third partyEstimated — derived or approximate
Body
Mobility
Power
Hands & Manipulation
- DoF per hand
- 0Official — stated by the manufacturer or organizer[1]The official 20-DoF breakdown has no hand joints
- Hand / end effector
- No articulated handsOfficial — stated by the manufacturer or organizer[1]
Compute & Sensing
- Onboard compute
- Intel Core i3 NUC (8 GB DDR4, 250 GB M.2 SSD) with OpenCR sub-controllerOfficial — stated by the manufacturer or organizer[1]2025 re-release
- Sensors
- Logitech C920 HD Pro camera (1920x1080), 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometerOfficial — stated by the manufacturer or organizer[1]
Show unknown fields (6)
Mobility
- Maximum speed
- Not published
- Peak joint torque
- Not published
Power
- Runtime
- Not published
- Charge time
- Not published
Hands & Manipulation
- Payload
- Not published
Compute & Sensing
- AI stack
- Not published
Official footage
Videos
ROBOTIS OP3 Read Write Demo
ROBOTIS
Quick answers
ROBOTIS OP3 FAQ
How much does ROBOTIS OP3 cost?
ROBOTIS OP3 is listed at $13,764 (Msrp, official). The source also states US$13,764.35. [2]
Can you buy ROBOTIS OP3?
Yes. ROBOTIS OP3 has a verified official order or preorder page and availability is listed from 2017. [2]
How tall is ROBOTIS OP3 and how much does it weigh?
ROBOTIS OP3 is 51 cm tall and weighs 3.5 kg (About 3.5 kg without the skin cover). [1]
How many degrees of freedom does ROBOTIS OP3 have?
ROBOTIS OP3 has 20 listed degrees of freedom; Total per the e-manual. [1]
Does ROBOTIS OP3 have an open SDK?
Yes. ROBOTIS OP3 is recorded as providing a public developer SDK or API. [1]
Who makes ROBOTIS OP3?
ROBOTIS OP3 is made by ROBOTIS Co., Ltd., based in South Korea. [1]
What is the predecessor or successor of ROBOTIS OP3?
ROBOTIS OP2 (DARwIn-OP2) is its predecessor. [1]
Side by side
Compare ROBOTIS OP3
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Lineage
Model family
Evaluation footprint
Benchmarks & competitions
No benchmark embodiments or results reference this robot yet.
Related
Similar robots
Evidence
Sources
- [1]ROBOTIS OP3 introduction (ROBOTIS e-manual) ↗ROBOTIS · official · accessed Oct 8, 2026
- [2]ROBOTIS OP3[US] product page (ROBOTIS America store) ↗ROBOTIS America · official · accessed Oct 8, 2026
- [3]ROBOTIS humanoid robot platforms ↗ROBOTIS · official · accessed Oct 8, 2026