Darwin-OP vs Walker Tienkung Voice and Vision
Side-by-side comparison of Darwin-OP (ROBOTIS Co., Ltd.) and Walker Tienkung Voice and Vision (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- Darwin-OPSouth Korea

- Walker Tienkung Voice and VisionChina

Year First Available
- Darwin-OP2010

- Walker Tienkung Voice and Vision—

Verified Deployments
- Darwin-OP0 Deployments

- Walker Tienkung Voice and Vision0 Deployments

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

- Walker Tienkung Voice and Vision$65,000–$73,050 USD

Battery / Shift Runtime
- Darwin-OP0.5 hrs

- Walker Tienkung Voice and Vision3 hrs

Availability Status
- Darwin-OPACTIVE

- Walker Tienkung Voice and VisionACTIVE

Physical Form Factor
Height
- Darwin-OP45.72 cm

- Walker Tienkung Voice and Vision1720 mm

Weight
- Darwin-OP9.1 kg

- Walker Tienkung Voice and Vision60 kg

Mobility Type
- Darwin-OPbipedal

- Walker Tienkung Voice and Vision—

Humanoid Subtype
- Darwin-OPfull bipedal

- Walker Tienkung Voice and Vision—

Walking Speed
- Darwin-OP0.2 m/s

- Walker Tienkung Voice and Vision2 m/s

Stair Climbing
- Darwin-OPNo

- Walker Tienkung Voice and Vision—

Terrain
- Darwin-OPflat indoor

- Walker Tienkung Voice and Vision—

Payload & Dexterity
Total DOF
- Darwin-OP20

- Walker Tienkung Voice and Vision21

Arm DOF
- Darwin-OP3

- Walker Tienkung Voice and Vision4

Bimanual Coordination
- Darwin-OPNo

- Walker Tienkung Voice and Vision—

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

- Walker Tienkung Voice and Vision275 TOPS

VLM Capable
- Darwin-OPNo

- Walker Tienkung Voice and Vision—

Foundation Models
- Darwin-OPfalse

- Walker Tienkung Voice and Vision—

Imitation Learning
- Darwin-OPNo

- Walker Tienkung Voice and Vision—

Programming
- Darwin-OPcode_python, code_ros

- Walker Tienkung Voice and VisionROS2

Battery & Power
Runtime
- Darwin-OP0.5 hrs

- Walker Tienkung Voice and Vision3 hrs

Battery Swap
- Darwin-OPNo

- Walker Tienkung Voice and Vision—

Software
SDK Languages
- Darwin-OPC++

- Walker Tienkung Voice and VisionROS2

ROS Support
- Darwin-OPYes

- Walker Tienkung Voice and VisionYes

Open API
- Darwin-OPYes

- Walker Tienkung Voice and Vision—

Reliability
Deployment Maturity
- Darwin-OPcommercial

- Walker Tienkung Voice and Vision—

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

- Walker Tienkung Voice and Vision$65,000–$73,050 USD

Price Tier
- Darwin-OP10-20K

- Walker Tienkung Voice and Vision40-80K

Pricing Model
- Darwin-OPpurchase

- Walker Tienkung Voice and Visionpurchase

Warranty
- Darwin-OP1 yrs

- Walker Tienkung Voice and Vision1 yrs

Applications
- Darwin-OPeducation, research

- Walker Tienkung Voice and Visioninteractive AI research, natural communication, education/research

![]() | ![]() | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | South Korea | China |
| Year First Available (values differ) | 2010 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $12,000 USD | $65,000–$73,050 USD |
| Battery / Shift Runtime (values differ) | 0.5 hrs | 3 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 45.72 cm | 1720 mm |
| Weight (values differ) | 9.1 kg | 60 kg |
| Mobility Type (values differ) | bipedal | — |
| Humanoid Subtype (values differ) | full bipedal | — |
| Walking Speed (values differ) | 0.2 m/s | 2 m/s |
| Stair Climbing (values differ) | No | — |
| Terrain (values differ) | flat indoor | — |
| Payload & Dexterity | ||
| Total DOF (values differ) | 20 | 21 |
| Arm DOF (values differ) | 3 | 4 |
| Bimanual Coordination (values differ) | No | — |
| Compute & AI | ||
| Onboard Compute (values differ) | Intel Atom N2600 @1.6 GHz dual core | 275 TOPS |
| VLM Capable (values differ) | No | — |
| Foundation Models (values differ) | false | — |
| Imitation Learning (values differ) | No | — |
| Programming (values differ) | code_python, code_ros | ROS2 |
| Battery & Power | ||
| Runtime (values differ) | 0.5 hrs | 3 hrs |
| Battery Swap (values differ) | No | — |
| Software | ||
| SDK Languages (values differ) | C++ | ROS2 |
| ROS Support | Yes | Yes |
| Open API (values differ) | Yes | — |
| Reliability | ||
| Deployment Maturity (values differ) | commercial | — |
| Commercial | ||
| Price (USD) (values differ) | $12,000 USD | $65,000–$73,050 USD |
| Price Tier (values differ) | 10-20K | 40-80K |
| Pricing Model | purchase | purchase |
| Warranty | 1 yrs | 1 yrs |
| Applications (values differ) | education, research | interactive AI research, natural communication, education/research |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Running Capable, Payload, 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 | Walker Tienkung Voice and Vision |
|---|---|---|
| Investment | $12,000 | $69,025 |
| Payback period | 2.9 mo | 16.6 mo |
| Net savings (5 yr) | $238,000 | $180,975 |
| ROI (5 yr) | +1983% | +262% |
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 Walker Tienkung Voice and Vision?
Darwin-OP is made by ROBOTIS Co., Ltd., based in KR. Walker Tienkung Voice and Vision is made by UBTECH Robotics Corp Ltd., based in CN.
How do Darwin-OP and Walker Tienkung Voice and Vision compare on the Robo Index?
Darwin-OP grades AA on the Robo Index. Walker Tienkung Voice and Vision grades BBB. 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 Walker Tienkung Voice and Vision 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 Walker Tienkung Voice and Vision?
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 Walker Tienkung Voice and Vision 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.