Comprehensive Comparison of 3 Major Korean Humanoid Robots: Robotis AI Worker, Rainbow RB-Y1, and A-Robot ALICE M1

“Which brand is different, and what criteria should I use to choose?” This is a question we hear very often lately.

The timing is perfect.

Right now, Marosol is hosting Korea's first Humanoid Special Exhibition. 🎉 You can view and compare Korean humanoid robots alongside global models all in one place.

This article covers:👇

▪ A 3-minute overview of the core differences between the “Big 3 Korean Humanoids”▪ Recommended guides based on application (Research/Corporate/Education) ▪ The benefits of the “Marosol Special Exhibition” → why it matters for actual deployment ▪ A summary to help you decide “based on your organization’s criteria” which robot to look at first

By the end of this read, you will have a clear picture of whether a humanoid robot can solve your problems and which of the three models to look at first. 🙌

Korea is Moving Toward “Industrial” Humanoids, Not Just Production 🏭

The current trend for Korean humanoid robots is clear: they aren't just for show. They are “Industrial Humanoids” designed to replace manual labor performed by human hands and bodies.

In other words, these robots focus on “Humanoid Automation” and “Research Optimization” rather than just “performance.” This is why Korean humanoids start with “actual field operations” as their baseline—the biggest differentiator from global competitors.

The 3 Models We Are Comparing Today:

1. Robotis AI Worker FFW-BG2 (AI Worker)

2. Rainbow Robotics RB-Y1 (RB-Y1)

3. A-Robot ALICE M1 (ALICE M1)

Before we dive in: Adopting a humanoid is a “Lead Time Battle.” ⏱️

Typically, the process of adopting a humanoid—Ordering → Manufacturing → Parts Sourcing → Testing → Delivery → Field Setup—takes over 6 months.

However, by pre-ordering through the Marosol Humanoid Special Exhibition, you can cut that time in half to an average of 3 months.

• Secured fast delivery routes based on domestic inventory

• “Priority Review” for SDK integration and custom parts support

• Free field installation and initial verification setup for select models

• → If you want to “start fast and see results,” this makes a massive difference.

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1) Robotis AI Worker FFW-BG2 (AI Worker) — “A worker who learns when a person teaches”

The Robotis AI Worker is an industrial humanoid based on Physical AI that mimics demonstrations performed by humans. It stands approximately 160cm tall and weighs 85kg. The mobile version is similar at 162cm/90kg. Both models feature 7-DoF arms, totaling 19 DoF for the fixed type and 25 DoF for the mobile version.

Strength is 3kg payload per arm, and it secures 3D vision with 3 front-facing RGB-D cameras. The mobile version includes 2 LiDARs and an IMU. Computing is powered by NVIDIA Jetson AGX Orin 32GB for ROS2-based AI operations. It can be operated via AC (fixed) or battery (up to 8 hours) (mobile).

The core value of this robot is one thing:“A multi-purpose humanoid robot specialized for Physical AI applications”

For tasks requiring “human skill”—like wire harness assembly, welding, or inspection—the robot: → learns by watching a human → mimics it immediately→ improves by reinforcing learning

It allows an approach that “duplicates the techniques of skilled workers,” making it highly significant for manufacturing processes struggling with labor shortages. It is a highly accessible industrial humanoid lineup for both companies and labs.

2) Rainbow Robotics RB-Y1 — “The fastest and most robust dual-arm research/practical platform”

As soon as the RB-Y1 was unveiled, MIT, Berkeley, and Georgia Tech immediately placed orders. This says it all: research institutions recognize this as a “ready-to-experiment humanoid robot.”

Dual 7-DoF arms (3kg payload each) are mounted on a single 6-DoF leg base that adjusts its working height from 1.3m to 1.8m. It can move at speeds up to 2.5m/s on its wheeled base.

“Doing tasks with both hands while moving quickly.”

It maintains a balance between speed and stability even during complex kinematic experiments. It also features a “Lead-through Teaching Mode” and built-in dual-arm collision avoidance algorithms.

For researchers, it is a platform where experiments can be implemented immediately. This is why RB-Y1 is the top choice for universities and research institutes.

3) A-Robot ALICE M1 (ALICE M1) — “Variable Height + Precision Manipulation Based on Human Hands”

The ALICE M1 is a mobile semi-humanoid with a parallel-link waist structure that allows it to flexibly adjust its height from 1.3m to 1.8m. It secures a stable view and approach angle for difficult precision assembly tasks. Based on 31 DoF and ~97kg specs, it can quickly find the optimal work pose in narrow environments.

It uses 6-DoF robot hands that mimic human fingers for delicate gripping. It prioritizes force control and contact safety for human-robot collaboration, excelling in sophisticated manipulation scenarios beyond simple grippers.

Computing is powered by the Advantech AFE-R360 Edge Platform, processing massive data from stereo cameras, 3D LiDAR, IMU, and laser sensors in real-time. It is optimized for running intelligent navigation and operation plans at field speed, ensuring both accuracy and responsiveness.

One-line Summary: M1 = Variable-height waist + 7-DoF dual arms + 6-DoF hands + AFE-R360 real-time processing. It is ideal for transferring detailed manual tasks to a robot in manufacturing and verification environments.

📍 Thinking about adopting a humanoid? Marosol is the fastest and safest starting point.

If you aren't sure where to get a quote or which robot fits your needs, you shouldn't just ask a “single manufacturer.” Marosol is the total robot solution platform where you can compare Korean and global humanoids (Magiclab, UBTECH, Elephant Robotics, etc.) in one place.

🎊 Korea’s First! ‘Marosol Humanoid Special Exhibition’ in Progress

Pre-ordering during the special exhibition changes the experience:

• Average lead time reduced to 3 months (More than 50% faster)

• Secured delivery within 2 months for select models

• Priority review for parts and SDK integration support

• Free field installation and initial verification setup for certain models

This isn't just about 'fast delivery'—it's about helping organizations start their experiments quickly.

👩‍🔬 Support Beyond Purchase — Marosol intervenes even in the ‘operational phase’

Humanoids require a team to lead the initial setup and operational advancement. Marosol’s R&D team, including PhDs specializing in humanoids, provides end-to-end care for a complete package. Marosol is the only platform in Korea where you can compare the 3 major Korean humanoids at this depth and draw up a deployment roadmap.

👉 Open a consultation during this special exhibition period. Delivery speed, support range, and technical connectivity—all can change with a single pre-reservation.

(Inquiries available directly on the Marosol platform!)