Side-by-side comparison of Hubo 2 (KAIST) and K2 Forerunner (Kepler Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Last-Mile Delivery buyers. Priority specs lifted to the top and marked with a target.
Manufacturer Country


Year First Available


Verified Deployments


Price Range (USD)


Battery / Shift Runtime


Availability Status


Height


Weight


Mobility Type


Humanoid Subtype


Walking Speed


Running Capable


Stair Climbing


Terrain


Payload


Total DOF


Arm DOF


Hand DOF


Bimanual Coordination


Onboard Compute


VLM Capable


Foundation Models


Imitation Learning


Programming


Runtime


Battery Swap


SDK Languages


ROS Support


Open API


IP Rating


Deployment Maturity


Price (USD)


Price Tier


Pricing Model


Warranty


Applications


![]() | ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | South Korea | China |
| Year First Available (values differ) | 2009 | 2025 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $400,000 | $60,000 |
| Battery / Shift Runtime (priority for Last-Mile Delivery buyers) (values differ) | 1.5 hrs | 8 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 125 mm | 180 mm |
| Weight (values differ) | 45 kg | 71 kg |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype | full bipedal | full bipedal |
| Walking Speed (values differ) | 1.5 m/s | 3.1 m/s |
| Running Capable (values differ) | dynamic walk | — |
| Stair Climbing (values differ) | No | Yes |
| Terrain (values differ) | flat indoor | flat indoor, uneven outdoor |
| Payload & Dexterity | ||
| Payload (values differ) | 2 kg | 30 kg |
| Total DOF (values differ) | 40 | 19 |
| Arm DOF | 7 | 7 |
| Hand DOF (values differ) | 5 | 11 |
| Bimanual Coordination (values differ) | Yes | No |
| Compute & AI | ||
| Onboard Compute (values differ) | Two PC/104 embedded computers with solid-state drives | NVIDIA Jetson |
| VLM Capable | No | No |
| Foundation Models (values differ) | — | false |
| Imitation Learning | No | No |
| Programming (values differ) | code_ros, proprietary_app, teleoperation | Python SDK |
| Battery & Power | ||
| Runtime (values differ) | 1.5 hrs | 8 hrs |
| Battery Swap | No | No |
| Software | ||
| SDK Languages (values differ) | code_ros, proprietary_app, teleoperation | Python |
| ROS Support | Yes | Yes |
| Open API | Yes | Yes |
| Reliability | ||
| IP Rating (priority for Last-Mile Delivery buyers) (values differ) | — | IP54 |
| Deployment Maturity (values differ) | research | commercial |
| Commercial | ||
| Price (USD) (values differ) | $400,000 | $60,000 |
| Price Tier (values differ) | 150K+ | 50k_150k |
| Pricing Model (values differ) | purchase | outright purchase |
| Warranty (values differ) | — | 2 yrs |
| Applications (values differ) | robotics education, research, service robotics, disaster response | quality control, inspection, materials handling |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Payload (Peak), Arm Reach, Grip Strength, Manipulation Repeatability, Tool Use, Compute Platform, Teleoperation, Battery Capacity, Charging Time, Charging Method, Avg Power Consumption, Force-Limited Arms, Fall Recovery, Fall Detection Response, Emergency Stops, Human Detection Method, Safe Speed Near Humans, Simulation Platforms, Air-Gap Capable, MTBF, Task Success Rate, Noise Level, RaaS / Month, Developer Unit Price, Delivery Lead Time, Production Pilots
Frequently asked
Hubo 2 is made by KAIST, based in KR. K2 Forerunner is made by Kepler Robotics, based in CN.
Hubo 2 launched in 2009. K2 Forerunner launched in 2025.
Hubo 2 is listed at $400,000. K2 Forerunner is listed at $60,000.
Hubo 2 scores 100/100. K2 Forerunner scores 73/100. The Robo Index blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
Hubo 2 carries up to 2 kg. K2 Forerunner carries up to 25 kg.
Both robots are classified as Humanoid on Robolist. Filters and ranking treat them as direct alternatives.
Hardware cost is one input. Humanoid TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Humanoid TCO: Hardware, Cloud Subscriptions, and the Cost of Teleop Time.
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Vendor Selection for Humanoids: The 10 Questions You Must Ask.
Going deeper — picking the right robot
Humanoid TCO: Hardware, Cloud Subscriptions, and the Cost of Teleop Time
8 min readHumanoid Robots
Vendor Selection for Humanoids: The 10 Questions You Must Ask
10 min readHumanoid Robots
Running a Humanoid Pilot: Scope, Success Criteria, and Exit Options
9 min readHumanoid Robots
Build vs buy vs lease: which model fits a first deployment
8 min readChoosing Your First Robot
The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
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Hubo 2 vs K2 Forerunner compares two robots in the humanoid category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robo Index is calculated.