Ranked1X Technologies · Humanoids
- Height
- 1.88 m (6 ft 2 in)
- Weight
- 86 kg (190 lb)
- DOF
- Not disclosed
- Runtime
- 6 h
- Price
- Not published
Rainbow RB-Y1
By Rainbow Robotics · South Korea · Humanoid robots
Robot 500: watchlist · not enough published evidence to rank yetHeight
1.4 m (4 ft 7 in)
Weight
131 kg (289 lb)
DOF
20
Runtime
Not disclosed
Price
From US$80,000
22 sourced values · 22 not disclosed (50% disclosed)Checked by our QA desk on 2026-10-09Official pageReport an error
Variants: RB-Y1 Version A · RB-Y1 Version M
Overview
South Korea's Rainbow Robotics, based in Sejong, describes the RB-Y1 as a humanoid-style mobile dual-arm robot platform. Two 7-DoF arms and a torso sit on a wheeled base: Version A uses two wheels and Version M uses four. It was announced on 8 May 2024.
Rainbow's May 2024 announcement lists the research platform at US$80,000 on pre-order and the commercial platform at US$120,000 excluding VAT, but we could not confirm current availability. Neither price is confirmed as current, and the product page shows none.
The robot measures 1.4 m tall, 0.6 m wide and 0.69 m deep, with an aluminium body. Version A weighs 131 kg, with 20 degrees of freedom and a 1,250 Wh battery. Version M weighs 170 kg, with 26 degrees of freedom and 2,500 Wh. Both batteries exceed the 907 Wh median across humanoid records. It drives at up to 1.5 m/s, each arm carries 3 kg, and LiDAR handles navigation. An SDK is published on GitHub. Runtime, charge time, the processor and total carry payload are not published.
Against other humanoid robots
Where the published figures sit among the 90 humanoid robots in our database. Only robots whose makers publish the same figure are counted.
| Figure | Rainbow RB-Y1 | Median | Range | Robots publishing it |
|---|---|---|---|---|
| Height | 1.4 m | 1.7 m0.57 m – 1.9 m · 66 robots | 0.57 m – 1.9 m | 66 |
| Weight | 131 kg | 61 kg5.5 kg – 230 kg · 73 robots | 5.5 kg – 230 kg | 73 |
| DOF | 20 | 2912 – 164 · 71 robots | 12 – 164 | 71 |
| Max drive speed | 1.5 m/s | 1.19 m/s0.5 m/s – 4.02 m/s · 6 robots | 0.5 m/s – 4.02 m/s | 6 |
| Per-arm payload | 3 kg | 5 kg0.5 kg – 21 kg · 41 robots | 0.5 kg – 21 kg | 41 |
| Battery | 1,250 Wh | 907 Wh62.5 Wh – 2,330 Wh · 30 robots | 62.5 Wh – 2,330 Wh | 30 |
Its lowest published US-dollar price, US$80,000, is above 15 and below 4 of the 20 humanoid robots with a published US-dollar price (median US$19,000).
Rainbow Robotics publishes 22 of the 44 figures we track for the Rainbow RB-Y1 (50%). The median across the 90 humanoid robots in our database is 53%, so it discloses more than 33 of them. Not published by the maker: runtime.
Background reading: Humanoid robots you can buy in 2026 · How to read a humanoid robot spec sheet in 2026 · How much does a humanoid robot cost? Every price we could find (2026).
Prices and where to buy
We don't earn anything from the links below. If that changes, this notice will say so before the links.
- Research platform: US$80,000 · pre-order, Global (pre-order) · checked 2026-10-09 Official store/page
- Commercial platform: US$120,000 · official price, Global · checked 2026-10-09 Official store/page
Prices change often; the maker's page is authoritative. Amazon prices are shown only through Amazon's own links.
Full specifications
Every value shows its confidence: Manufacturer stated by the maker · Verified independently confirmed · Estimate our calculation from official figures · Reported credible media, retailer or trade-show report, not confirmed by the maker · ⚠ Unconfirmed leak, rumour or single source — treat with caution · Not disclosed not published. Every value, whatever its confidence, links to its source. How we source specs.
| Announced | |
|---|---|
| Status | |
| Units deployed |
| Height | |
|---|---|
| Dimensions | |
| Weight | |
| Form factor | |
| Materials | |
| IP rating |
| Max drive speed | 1.5 m/s (5.4 km/h · 3.4 mph)ManufacturerSource: rainbow-robotics.com (2026-10-09)Conditions: not stated by manufacturer beyond "Driving Speed" |
|---|
| Total degrees of freedom | |
|---|---|
| DOF per hand |
| Carry payload | |
|---|---|
| Per-arm payload | 3 kg (7 lb)ManufacturerSource: rainbow-robotics.com (2026-10-09)Conditions: not stated by manufacturer beyond "per arm" |
| Peak lift |
| Processor | |
|---|---|
| AI performance | |
| AI stack | |
| Teleoperation |
| Cameras | A high-performance 3D recognition sensor is available as an optional add-on (per 2024 press release); not itemized on the current product pageManufacturerSource: rainbow-robotics.com (2026-09-25) |
|---|---|
| LiDAR | |
| IMU | |
| Microphones | |
| Force/torque |
| Battery | |
|---|---|
| Runtime | |
| Charge time | |
| Hot-swappable battery |
| SDK | SDK available (GitHub repository linked from the official site)ManufacturerSource: rainbow-robotics.com (2026-09-23) |
|---|---|
| ROS support | |
| Open source | |
| App ecosystem |
| Certifications | |
|---|---|
| Collaborative operation |
| Regions sold |
|---|
Cite: RankedRobot, https://rankedrobot.com/robots/rainbow-rb-y1/ (checked 2026-10-09) · Plain-text spec sheet · Open data
Viewer rating
Visitors' opinions · not part of the Robot 500–/10No ratings yet
One rating per visitor per robot; you can change it later. An average appears from 5 ratings. These are unverified opinions of visitors and are never used in our Robot 500 ranking, which is based only on sourced evidence. Viewers' choice · How viewer ratings work
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- DOF
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