Darwin-OP vs TOPIO Dio
Side-by-side comparison of Darwin-OP (ROBOTIS Co., Ltd.) and TOPIO Dio (Yoyodyne) — 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
- Darwin-OPSouth Korea

- TOPIO Dio—

Year First Available
- Darwin-OP2010

- TOPIO Dio2010

Verified Deployments
- Darwin-OP0 Deployments

- TOPIO Dio0 Deployments

Layer 2: Operational
Price
- Darwin-OP$12,000 USD

- TOPIO DioContact for quote

Battery / Shift Runtime
- Darwin-OP0.5 hrs

- TOPIO Dio12 hrs

Availability Status
- Darwin-OPACTIVE

- TOPIO DioACTIVE

Physical Form Factor
Height
- Darwin-OP45.72 cm

- TOPIO Dio1250 mm

Weight
- Darwin-OP9.1 kg

- TOPIO Dio0.1 kg

Mobility Type
- Darwin-OPbipedal

- TOPIO Dio—

Humanoid Subtype
- Darwin-OPfull bipedal

- TOPIO Dio—

Walking Speed
- Darwin-OP0.2 m/s

- TOPIO Dio5.6 m/s

Stair Climbing
- Darwin-OPNo

- TOPIO Dio—

Terrain
- Darwin-OPflat indoor

- TOPIO Dioindoor

Payload & Dexterity
Payload
- Darwin-OP—

- TOPIO Dio50 kg

Total DOF
- Darwin-OP20

- TOPIO Dio28

Arm DOF
- Darwin-OP3

- TOPIO Dio—

Bimanual Coordination
- Darwin-OPNo

- TOPIO Dio—

Compute & AI
Onboard Compute
- Darwin-OPIntel Atom N2600 @1.6 GHz dual core

- TOPIO Dio—

VLM Capable
- Darwin-OPNo

- TOPIO Dio—

Foundation Models
- Darwin-OPfalse

- TOPIO Dio—

Imitation Learning
- Darwin-OPNo

- TOPIO Dio—

Programming
- Darwin-OPcode_python, code_ros

- TOPIO Dioremote_control

Battery & Power
Runtime
- Darwin-OP0.5 hrs

- TOPIO Dio12 hrs

Battery Swap
- Darwin-OPNo

- TOPIO Dio—

Software
SDK Languages
- Darwin-OPC++

- TOPIO Dioremote_control

ROS Support
- Darwin-OPYes

- TOPIO Dio—

Open API
- Darwin-OPYes

- TOPIO Dio—

Reliability
Deployment Maturity
- Darwin-OPcommercial

- TOPIO Dio—

Commercial
Price (USD)
- Darwin-OP$12,000 USD

- TOPIO DioContact for quote

Price Tier
- Darwin-OP10-20K

- TOPIO Dio<10K

Pricing Model
- Darwin-OPpurchase

- TOPIO Dio—

Warranty
- Darwin-OP1 yrs

- TOPIO Dio—

Applications
- Darwin-OPeducation, research

- TOPIO Diocleaning, food preparation, entertainment, valet service

![]() | ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | South Korea | — |
| Year First Available | 2010 | 2010 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $12,000 USD | Contact for quote |
| Battery / Shift Runtime (priority for Last-Mile Delivery buyers) (values differ) | 0.5 hrs | 12 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 45.72 cm | 1250 mm |
| Weight (values differ) | 9.1 kg | 0.1 kg |
| Mobility Type (values differ) | bipedal | — |
| Humanoid Subtype (values differ) | full bipedal | — |
| Walking Speed (values differ) | 0.2 m/s | 5.6 m/s |
| Stair Climbing (values differ) | No | — |
| Terrain (values differ) | flat indoor | indoor |
| Payload & Dexterity | ||
| Payload (values differ) | — | 50 kg |
| Total DOF (values differ) | 20 | 28 |
| Arm DOF (values differ) | 3 | — |
| Bimanual Coordination (values differ) | No | — |
| Compute & AI | ||
| Onboard Compute (values differ) | Intel Atom N2600 @1.6 GHz dual core | — |
| VLM Capable (values differ) | No | — |
| Foundation Models (values differ) | false | — |
| Imitation Learning (values differ) | No | — |
| Programming (values differ) | code_python, code_ros | remote_control |
| Battery & Power | ||
| Runtime (values differ) | 0.5 hrs | 12 hrs |
| Battery Swap (values differ) | No | — |
| Software | ||
| SDK Languages (values differ) | C++ | remote_control |
| ROS Support (values differ) | Yes | — |
| Open API (values differ) | Yes | — |
| Reliability | ||
| Deployment Maturity (values differ) | commercial | — |
| Commercial | ||
| Price (USD) (values differ) | $12,000 USD | Contact for quote |
| Price Tier (values differ) | 10-20K | <10K |
| Pricing Model (values differ) | purchase | — |
| Warranty (values differ) | 1 yrs | — |
| Applications (values differ) | education, research | cleaning, food preparation, entertainment, valet service |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Running Capable, Payload (Peak), 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, 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 | Darwin-OP | TOPIO Dio |
|---|---|---|
| Investment | $12,000 | No price |
| Payback period | 2.9 mo | — |
| Net savings (5 yr) | $238,000 | — |
| ROI (5 yr) | +1983% | — |
TOPIO Dio 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 Darwin-OP and TOPIO Dio?
Darwin-OP is made by ROBOTIS Co., Ltd., based in KR. TOPIO Dio is made by Yoyodyne.
When were Darwin-OP and TOPIO Dio launched?
Darwin-OP launched in 2010. TOPIO Dio launched in 2010.
How do Darwin-OP and TOPIO Dio compare on the Robo Index?
Darwin-OP grades AA on the Robo Index. TOPIO Dio 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.
Are Darwin-OP and TOPIO Dio 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 Darwin-OP and TOPIO Dio?
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
Darwin-OP vs TOPIO Dio 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.