足立レイ (Adachi Rei) vs Kangaroo Pro
Side-by-side comparison of 足立レイ (Adachi Rei) (Mechanical Girl) and Kangaroo Pro (PAL 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.
Layer 1: Identity & Trust
Manufacturer Country
- 足立レイ (Adachi Rei)Japan
- Kangaroo ProSpain
Year First Available
- 足立レイ (Adachi Rei)2022
- Kangaroo Pro2025
Verified Deployments
- 足立レイ (Adachi Rei)0 Deployments
- Kangaroo Pro0 Deployments
Layer 2: Operational
Price
- 足立レイ (Adachi Rei)$1,000 USD
- Kangaroo Pro$100,000 USD
Battery / Shift Runtime
- 足立レイ (Adachi Rei)—
- Kangaroo Pro6 hrs
Availability Status
- 足立レイ (Adachi Rei)ACTIVE
- Kangaroo ProACTIVE
Physical Form Factor
Height
- 足立レイ (Adachi Rei)168 mm
- Kangaroo Pro1450 mm
Weight
- 足立レイ (Adachi Rei)20 kg
- Kangaroo Pro40 kg
Mobility Type
- 足立レイ (Adachi Rei)—
- Kangaroo Probipedal
Humanoid Subtype
- 足立レイ (Adachi Rei)digital avatar
- Kangaroo Profull bipedal
Stair Climbing
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Terrain
- 足立レイ (Adachi Rei)both
- Kangaroo Proflat indoor
Payload & Dexterity
Bimanual Coordination
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Compute & AI
Onboard Compute
- 足立レイ (Adachi Rei)Intel i7-7567U @ 3.5GHz
- Kangaroo ProNVidia Jetson
VLM Capable
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Foundation Models
- 足立レイ (Adachi Rei)—
- Kangaroo Profalse
Imitation Learning
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Programming
- 足立レイ (Adachi Rei)code_python, no_code_gui
- Kangaroo Procustom control interface
Battery & Power
Runtime
- 足立レイ (Adachi Rei)—
- Kangaroo Pro6 hrs
Battery Swap
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Software
SDK Languages
- 足立レイ (Adachi Rei)code_python, no_code_gui
- Kangaroo ProPython
ROS Support
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Open API
- 足立レイ (Adachi Rei)—
- Kangaroo ProNo
Reliability
Deployment Maturity
- 足立レイ (Adachi Rei)commercial
- Kangaroo Procommercial
Commercial
Price (USD)
- 足立レイ (Adachi Rei)$1,000 USD
- Kangaroo Pro$100,000 USD
Price Tier
- 足立レイ (Adachi Rei)<10K
- Kangaroo Pro—
Pricing Model
- 足立レイ (Adachi Rei)outright purchase
- Kangaroo Pro—
Applications
- 足立レイ (Adachi Rei)teleoperation
- Kangaroo Proresearch, education
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Japan | Spain |
| Year First Available (values differ) | 2022 | 2025 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $1,000 USD | $100,000 USD |
| Battery / Shift Runtime (priority for Last-Mile Delivery buyers) (values differ) | — | 6 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 168 mm | 1450 mm |
| Weight (values differ) | 20 kg | 40 kg |
| Mobility Type (values differ) | — | bipedal |
| Humanoid Subtype (values differ) | digital avatar | full bipedal |
| Stair Climbing (values differ) | — | No |
| Terrain (values differ) | both | flat indoor |
| Payload & Dexterity | ||
| Bimanual Coordination (values differ) | — | No |
| Compute & AI | ||
| Onboard Compute (values differ) | Intel i7-7567U @ 3.5GHz | NVidia Jetson |
| VLM Capable (values differ) | — | No |
| Foundation Models (values differ) | — | false |
| Imitation Learning (values differ) | — | No |
| Programming (values differ) | code_python, no_code_gui | custom control interface |
| Battery & Power | ||
| Runtime (values differ) | — | 6 hrs |
| Battery Swap (values differ) | — | No |
| Software | ||
| SDK Languages (values differ) | code_python, no_code_gui | Python |
| ROS Support (values differ) | — | No |
| Open API (values differ) | — | No |
| Reliability | ||
| Deployment Maturity | commercial | commercial |
| Commercial | ||
| Price (USD) (values differ) | $1,000 USD | $100,000 USD |
| Price Tier (values differ) | <10K | — |
| Pricing Model (values differ) | outright purchase | — |
| Applications (values differ) | teleoperation | research, education |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Walking Speed, Running Capable, Payload, Payload (Peak), Total DOF, Arm DOF, Hand DOF, 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, IP Rating, Noise Level, RaaS / Month, Developer Unit Price, Delivery Lead Time, Warranty, 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 | 足立レイ (Adachi Rei) | Kangaroo Pro |
|---|---|---|
| Investment | $1,000 | $100,000 |
| Payback period | < 1 mo | 24.0 mo |
| Net savings (5 yr) | $249,000 | $150,000 |
| ROI (5 yr) | +24900% | +150% |
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 足立レイ (Adachi Rei) and Kangaroo Pro?
足立レイ (Adachi Rei) is made by Mechanical Girl, based in JP. Kangaroo Pro is made by PAL Robotics, based in ES.
When were 足立レイ (Adachi Rei) and Kangaroo Pro launched?
足立レイ (Adachi Rei) launched in 2022. Kangaroo Pro launched in 2025.
How do 足立レイ (Adachi Rei) and Kangaroo Pro compare on the Robo Index?
足立レイ (Adachi Rei) grades BBB on the Robo Index. Kangaroo Pro grades AA. 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.
Are 足立レイ (Adachi Rei) and Kangaroo Pro 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 足立レイ (Adachi Rei) and Kangaroo Pro?
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
足立レイ (Adachi Rei) vs Kangaroo Pro 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.