HRP-4 vs Luna
Side-by-side comparison of HRP-4 (Kawada Industries) and Luna (LimX Dynamics Technology Co., Ltd) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Optimized for Hospitality & F&B buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- HRP-4Japan
- LunaChina
Year First Available
- HRP-42010
- Luna2026
Verified Deployments
- HRP-40 Deployments
- Luna0 Deployments
Layer 2: Operational
Price
- HRP-4$300,000–$305,000 USD
- LunaContact for quote
Battery / Shift Runtime
- HRP-40.4 hrs
- Luna4 hrs
Availability Status
- HRP-4ACTIVE
- LunaACTIVE
Physical Form Factor
Weight
- HRP-439 kg
- Luna54 kg
Height
- HRP-4151 mm
- Luna160 mm
Mobility Type
- HRP-4bipedal
- Lunabipedal
Humanoid Subtype
- HRP-4research platform
- Lunafull bipedal
Walking Speed
- HRP-40.6 m/s
- Luna1.4 m/s
Stair Climbing
- HRP-4No
- Luna—
Terrain
- HRP-4flat indoor
- Luna—
Payload & Dexterity
Payload
- HRP-40.5 kg
- Luna3 kg
Total DOF
- HRP-434
- Luna27
Arm DOF
- HRP-47
- Luna5
Hand DOF
- HRP-42
- Luna—
Bimanual Coordination
- HRP-4Yes
- Luna—
Compute & AI
Onboard Compute
- HRP-4Linux kernel with RT-Preempt patch
- LunaDual RK3588 (motion + perception)
Compute Platform
- HRP-4Intel Pentium M (1.6 GHz)
- Luna—
VLM Capable
- HRP-4No
- Luna—
Foundation Models
- HRP-4false
- Luna—
Imitation Learning
- HRP-4No
- Luna—
Programming
- HRP-4code_ros
- LunaAI task editor (natural language)
Battery & Power
Runtime
- HRP-40.4 hrs
- Luna4 hrs
Battery Swap
- HRP-4No
- Luna—
Safety
Human Detection Method
- HRP-4vision human
- Luna—
Software
SDK Languages
- HRP-4Linux
- LunaAI task editor (natural language)
ROS Support
- HRP-4Yes
- Luna—
Open API
- HRP-4No
- Luna—
Reliability
Deployment Maturity
- HRP-4prototype
- Lunacommercial
Commercial
Price (USD)
- HRP-4$300,000–$305,000 USD
- LunaContact for quote
Price Tier
- HRP-4150K+
- Luna—
Pricing Model
- HRP-4purchase
- Luna—
Warranty
- HRP-4—
- Luna1 yrs
Applications
- HRP-4research
- Luna—
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Japan | China |
| Year First Available (values differ) | 2010 | 2026 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $300,000–$305,000 USD | Contact for quote |
| Battery / Shift Runtime (priority for Hospitality & F&B buyers) (values differ) | 0.4 hrs | 4 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Weight (priority for Hospitality & F&B buyers) (values differ) | 39 kg | 54 kg |
| Height (values differ) | 151 mm | 160 mm |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype (values differ) | research platform | full bipedal |
| Walking Speed (values differ) | 0.6 m/s | 1.4 m/s |
| Stair Climbing (values differ) | No | — |
| Terrain (values differ) | flat indoor | — |
| Payload & Dexterity | ||
| Payload (values differ) | 0.5 kg | 3 kg |
| Total DOF (values differ) | 34 | 27 |
| Arm DOF (values differ) | 7 | 5 |
| Hand DOF (values differ) | 2 | — |
| Bimanual Coordination (values differ) | Yes | — |
| Compute & AI | ||
| Onboard Compute (values differ) | Linux kernel with RT-Preempt patch | Dual RK3588 (motion + perception) |
| Compute Platform (values differ) | Intel Pentium M (1.6 GHz) | — |
| VLM Capable (values differ) | No | — |
| Foundation Models (values differ) | false | — |
| Imitation Learning (values differ) | No | — |
| Programming (values differ) | code_ros | AI task editor (natural language) |
| Battery & Power | ||
| Runtime (values differ) | 0.4 hrs | 4 hrs |
| Battery Swap (values differ) | No | — |
| Safety | ||
| Human Detection Method (values differ) | vision human | — |
| Software | ||
| SDK Languages (values differ) | Linux | AI task editor (natural language) |
| ROS Support (values differ) | Yes | — |
| Open API (values differ) | No | — |
| Reliability | ||
| Deployment Maturity (values differ) | prototype | commercial |
| Commercial | ||
| Price (USD) (values differ) | $300,000–$305,000 USD | Contact for quote |
| Price Tier (values differ) | 150K+ | — |
| Pricing Model (values differ) | purchase | — |
| Warranty (values differ) | — | 1 yrs |
| Applications (values differ) | research | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Running Capable, Payload (Peak), Arm Reach, Grip Strength, Manipulation Repeatability, Tool Use, Teleoperation, Battery Capacity, Charging Time, Charging Method, Avg Power Consumption, Force-Limited Arms, Fall Recovery, Fall Detection Response, Emergency Stops, Safe Speed Near Humans, Simulation Platforms, Air-Gap Capable, MTBF, Task Success Rate, IP Rating, Noise Level, RaaS / Month, Developer Unit Price, Delivery Lead Time, Production Pilots
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | HRP-4 | Luna |
|---|---|---|
| Investment | $302,500 | No price |
| Payback period | 72.6 mo | — |
| Net savings (5 yr) | -$52,500 | — |
| ROI (5 yr) | -17% | — |
Luna has no listed price, so payback can't be computed. Contact the manufacturer for a quote.
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes HRP-4 and Luna?
HRP-4 is made by Kawada Industries, based in JP. Luna is made by LimX Dynamics Technology Co., Ltd, based in CN.
When were HRP-4 and Luna launched?
HRP-4 launched in 2010. Luna launched in 2026.
How do HRP-4 and Luna compare on the Robo Index?
HRP-4 grades AA on the Robo Index. Luna grades A. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
What is the payload difference between HRP-4 and Luna?
HRP-4 carries up to 0.5 kg. Luna carries up to 3 kg.
Are HRP-4 and Luna in the same category?
Both robots are classified as Humanoid on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Humanoid robots?
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.
What should a buyer ask vendors when choosing between HRP-4 and Luna?
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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About this comparison
HRP-4 vs Luna 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.