Home/Compare/Leju Kuavo vs Rainbow Robotics RB-Y1
Head-to-head · General purpose vs Research

Leju Kuavo vs Rainbow Robotics RB-Y1

Leju Kuavo has the stronger public evidence base, with an Arena rating 290 points above Rainbow Robotics RB-Y1. Leju Kuavo is cheaper ($50,000 vs $80,000).

By Jason BurmeisterUpdated Sources checked

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Which robot is more impressive overall?

Leju Kuavo, full body
Leju Kuavo
Leju Robotics
140 cm · $50,000 · Commercial deployment
Leju KuavoRainbow Robotics RB-Y1
CompanyLeju RoboticsRainbow Robotics
CountryChinaSouth Korea
StatusCommercial deploymentPurchasable
Price$50,000$80,000
How to get oneBuy nowContact sales
Arena rating1,204914
EvidenceB+C
Height140 cm (4 ft 7 in)140 cm (4 ft 7 in)
Weight45 kg (99 lb)131 kg (289 lb)
Payload5 kg (11 lb)3 kg (7 lb)
Runtime2 hn/a
Degrees of freedom26 DoF20 DoF
Top speed1.28 m/s (4.6 km/h)1.5 m/s (5.4 km/h)
HandsNo hand specifications found. Video title mentions swappable hands for KUAVO 5/5-W, but no details.Optional gripper available (no detailed specs on official product page). Force/torque sensors on both arms are built into V1.2 configuration.
Announcedn/a2024-05-08

Capability evidence, side by side

score per dimension, 0-100
Manipulation
54
54
Autonomy
34
34
Mobility
68
54
Perception
54
34
Human interaction
8
34
Reliability
34
34
Human-environment fit
54
34
Leju Kuavo
Rainbow Robotics RB-Y1

Arena matchup result

overall human like capability
Result
Leju Kuavo
Low
Leju Kuavo wins
100%
of validated votes
Rainbow Robotics RB-Y1 wins
0%
of validated votes
Insufficient
0%
tracked separately

Current evidence comparison for Leju Kuavo and Rainbow Robotics RB-Y1.

Leju Kuavo

Leju Robotics
Leju Kuavo humanoid robot standing on display at a technology exhibition booth.
Image: © Leju Robotics · official website

Leju Kuavo is a family of full-size biped humanoids from Leju Robotics, with base KUAVO independently tested by CTTL at 45 kg, 26 DoF, 4.6 km/h pace, and 20cm jumps; KUAVO-MY variant is 1.4 m with >40 DoF. Leju's IPO filing reports 577 Kuavo units sold in 2025 for 178 million yuan. A public torchbearer event demonstrated 100m torch carrying and handover, but was explicitly teleoperated. Several YouTube titles suggest parcel delivery, household help, modular hands, and FAW factory work, but lack transcripts. No autonomous manipulation, runtime, battery, sensor, or hand specs were found in reviewed sources

Full profilePriceAlternatives

Rainbow Robotics RB-Y1

Rainbow Robotics
Front view render of the Rainbow Robotics RB-Y1 wheeled humanoid robot on a white background
Photo: Courtesy of Rainbow Robotics · official press kit

Rainbow Robotics RB-Y1 is a wheeled bimanual mobile manipulator (140 cm tall, 131 kg, two 7-DoF arms, ±0.05 mm repeatability, 20/26 DOF, 1.5 m/s) sold as a research platform for $80,000 (commercial $120,000). It has LiDAR for autonomous movement, force/torque sensors, and supports teleoperation via Master Arm or VR. Evidence includes official specs and pre-order announcement, but no named customer deployments, no autonomous task execution, and all video evidence is title-only without transcript or content review. The robot is purchasable but unproven in real-world use

Full profilePriceAlternatives

Leju Kuavo vs Rainbow Robotics RB-Y1 FAQ

answers from sourced data

Which is better, Leju Kuavo or Rainbow Robotics RB-Y1?

On public evidence, Leju Kuavo currently rates higher (1,204 vs 914). The better choice still depends on the job: compare availability, price and the capability rows above.

Which is cheaper, Leju Kuavo or Rainbow Robotics RB-Y1?

Leju Kuavo: $50,000. Rainbow Robotics RB-Y1: $80,000. Prices are in the seller's currency and configurations differ.

Which is taller, Leju Kuavo or Rainbow Robotics RB-Y1?

Leju Kuavo is 140 cm (4 ft 7 in); Rainbow Robotics RB-Y1 is 140 cm (4 ft 7 in).

Can you buy the Leju Kuavo or the Rainbow Robotics RB-Y1?

Leju Kuavo: buy now. Rainbow Robotics RB-Y1: contact sales.