Compare 3 humanoids
Robotis OP3, Unitree Robotics R1, Unitree Robotics R1 Air compared on the things that decide a purchase: price, capability, what actually ships, and estimated costs to your destination.
Delivered price, head to head
Base-machine prices delivered to United States, by the cheapest route on record.
Robotis
OP3
$13,585
to $13,707 landed
Unitree Robotics
R1
$8,888
to $9,432 landed
Unitree Robotics
R1 Air
$6,870
at RobotShop US, delivered
Lowest delivered price
Delivered to United States: the import estimate (machine plus freight, Sales tax (0%), robot duty, and broker), or a seller in your own market where one lists the machine for less. Accessories excluded. Check configuration and request a seller quote on each robot's datasheet.
About 12.5% on Korea-origin since 24 Jul 2026: USTR's Section 301 forced-labor action applies a combination rate that tops the 2.5% MFN base up to a flat 12.5%. Confirm the live rate before ordering.
About 40% on China-origin collected today: the 2.5% MFN base, 25% Section 301 List 1, and the 12.5% Section 301 forced-labor duty effective 24 Jul 2026 with no expiry. It began the same morning the 10% Section 122 surcharge lapsed, so the total rose from about 37.5% rather than falling to 27.5%. Confirm the live rate before ordering. Under review; next checked 2026-11-13.
Compare the details
20 rows, 15 with differences
Scroll within the table to see all details. Model names and row labels stay visible. Unknown specifications remain marked as not published.
| Specification |  Robotis OP3 |  Unitree Robotics R1 |  Unitree Robotics R1 Air |
|---|---|---|---|
| Priced configuration | See seller configuration | R1 | R1 Air |
| Listed price | $11,969 | $5,900 | $4,900 |
| Class | Education | Dev / demo | Dev / demo |
| Who can buy | Consumer | Consumer | Consumer |
| Status | Shipping now | Shipping now | Shipping now |
| Capability rating | 2/5 | 3/5 | 3/5 |
| Maturity rating | 5/5 | 5/5 | 5/5 |
| Origin | South Korea | China | China |
| Size class | Desktop | Compact | Compact |
| Height | 51 cm / 1 ft 8 in | 123 cm / 4 ft 0 in | 123 cm / 4 ft 0 in |
| Footprint (W x D) | 26 x 16 cm | 36 x 19 cm | 36 x 19 cm |
| Weight | 3.5 kg | 29 kg | 27 kg |
| Degrees of freedom | 20 | 26 | 20 |
| Battery (listed) | 30 min | 60 min | 60 min |
| Payload (listed) | Not published | 2 kg | 2 kg |
| Hands | No hands, none offered | No hands, none offered | No hands, none offered |
| Out of the box | Ships with working RoboCup soccer and vision demos (ball tracking, kicking), walking gaits, and full example stacks. It is the reference kid-size platform, but expect a Linux terminal, not a phone app. | Walks, runs, gets up after a fall and performs Unitree's preset motions (dances, kung fu, handstands) from the handheld remote or the phone app, and holds voice and image conversations through its onboard multimodal AI. Compared with the Air it adds a 2-joint waist, a 2-joint head and a depth camera. It runs Unitree's programs only. | Walks, runs, gets up after a fall and performs Unitree's preset motions from the handheld remote or the phone app, with voice and image conversation through the onboard multimodal AI. Without a waist or head joint and with a single camera, it is the least expressive R1, and it runs Unitree's programs only. |
| Development access | Fully open source in hardware AND software, alongside Fourier N1 the most open commercial platform here: 20 torque-controlled Dynamixel actuators, OpenCR sub-controller, complete docs. The 2025 re-release is native ROS 2. | Unitree's specification table, its store and its IPO prospectus all say only the EDU is configured for secondary development; the R1 and R1 Air run Unitree's own programs from standard commands. | Unitree's IPO prospectus names the R1 Air among the models not configured for secondary development, as do its specification table and store. |
| Best for | University coursework and RoboCup teams that want a fully open, torque-controlled bench platform. | Events, showrooms, schools and enthusiasts who want an agile walking humanoid to demonstrate, not to program. | Anyone who wants the lowest-cost agile walking humanoid for demonstrations, events or a first look at the category. |
| Listing checked | 2026-10: sources for Robotis OP3 | 2026-10: sources for Unitree Robotics R1 | 2026-10: sources for Unitree Robotics R1 Air |
Listed prices may cover different configurations and tax terms. Use the delivered estimates above for your destination. Battery and payload figures are manufacturer specifications, not results from a shared test.
OP3
In the box
- Fully assembled robot (~51 cm, 20 DOF)
- 2 battery packs (11.1V 3300 mAh)
- Charger + DC power supply
- Intel NUC i3 onboard PC
- HD camera
- Tools, cables, spare parts
Not included
- Hands (arms have no grippers)
- A simulation workstation
- Any consumer app (this is a bench research platform)
R1
In the box
- R1 robot (26 joints, fixed hands)
- Smart quick-release battery (about 1 hour)
- Handheld remote controller
- Charger
- Stand that assembles into a hanging bracket
Not included
- Secondary development (R1 EDU only)
- Dexterous hands or grippers
- A high-power compute module (EDU option)
- Spare battery ($500 on Unitree's store)
- Import duties and taxes when buying direct
R1 Air
In the box
- R1 Air robot (20 joints, fixed hands)
- Smart quick-release battery (about 1 hour)
- Handheld remote controller
- Charger
Not included
- Waist and head joints (R1 and R1 EDU only)
- Depth camera (monocular camera only)
- Secondary development (R1 EDU only)
- Hands of any kind
- Spare battery ($500 on Unitree's store)
What the evidence tells you
- Highest capability rating
- R1 and R1 Air share 3/5 (tied).
- Highest maturity rating
- OP3, R1, and R1 Air share 5/5 (tied).
- Lowest listed weight
- OP3: 3.5 kg.
Capability and maturity are editorial ratings based on specifications and sales availability. They do not measure reliability, autonomy, or performance on your task. Each datasheet shows the scoring factors.