Darwin-OP vs Xiaqi X02
Side-by-side comparison of Darwin-OP (ROBOTIS Co., Ltd.) and Xiaqi X02 (Digit Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Hospitality & F&B buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- Darwin-OPSouth Korea
- Xiaqi X02China
Year First Available
- Darwin-OP2010
- Xiaqi X02—
Verified Deployments
- Darwin-OP0 Deployments
- Xiaqi X020 Deployments
Layer 2: Operational
Price
- Darwin-OP$12,000 USD
- Xiaqi X02Contact for quote
Battery / Shift Runtime
- Darwin-OP0.5 hrs
- Xiaqi X02—
Availability Status
- Darwin-OPACTIVE
- Xiaqi X02ACTIVE
Physical Form Factor
Weight
- Darwin-OP9.1 kg
- Xiaqi X02—
Height
- Darwin-OP45.72 cm
- Xiaqi X02—
Mobility Type
- Darwin-OPbipedal
- Xiaqi X02—
Humanoid Subtype
- Darwin-OPfull bipedal
- Xiaqi X02—
Walking Speed
- Darwin-OP0.2 m/s
- Xiaqi X02—
Stair Climbing
- Darwin-OPNo
- Xiaqi X02—
Terrain
- Darwin-OPflat indoor
- Xiaqi X02—
Payload & Dexterity
Total DOF
- Darwin-OP20
- Xiaqi X02—
Arm DOF
- Darwin-OP3
- Xiaqi X02—
Bimanual Coordination
- Darwin-OPNo
- Xiaqi X02—
Compute & AI
Onboard Compute
- Darwin-OPIntel Atom N2600 @1.6 GHz dual core
- Xiaqi X02—
VLM Capable
- Darwin-OPNo
- Xiaqi X02—
Foundation Models
- Darwin-OPfalse
- Xiaqi X02—
Imitation Learning
- Darwin-OPNo
- Xiaqi X02—
Programming
- Darwin-OPcode_python, code_ros
- Xiaqi X02—
Battery & Power
Runtime
- Darwin-OP0.5 hrs
- Xiaqi X02—
Battery Swap
- Darwin-OPNo
- Xiaqi X02—
Software
SDK Languages
- Darwin-OPC++
- Xiaqi X02—
ROS Support
- Darwin-OPYes
- Xiaqi X02—
Open API
- Darwin-OPYes
- Xiaqi X02—
Reliability
Deployment Maturity
- Darwin-OPcommercial
- Xiaqi X02—
Commercial
Price (USD)
- Darwin-OP$12,000 USD
- Xiaqi X02Contact for quote
Price Tier
- Darwin-OP10-20K
- Xiaqi X02—
Pricing Model
- Darwin-OPpurchase
- Xiaqi X02—
Warranty
- Darwin-OP1 yrs
- Xiaqi X02—
Applications
- Darwin-OPeducation, research
- Xiaqi X02—
| ||
|---|---|---|
| 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 | Contact for quote |
| Battery / Shift Runtime (priority for Hospitality & F&B buyers) (values differ) | 0.5 hrs | — |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Weight (priority for Hospitality & F&B buyers) (values differ) | 9.1 kg | — |
| Height (values differ) | 45.72 cm | — |
| Mobility Type (values differ) | bipedal | — |
| Humanoid Subtype (values differ) | full bipedal | — |
| Walking Speed (values differ) | 0.2 m/s | — |
| Stair Climbing (values differ) | No | — |
| Terrain (values differ) | flat indoor | — |
| Payload & Dexterity | ||
| Total DOF (values differ) | 20 | — |
| 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 | — |
| Battery & Power | ||
| Runtime (values differ) | 0.5 hrs | — |
| Battery Swap (values differ) | No | — |
| Software | ||
| SDK Languages (values differ) | C++ | — |
| 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 | — |
| Pricing Model (values differ) | purchase | — |
| Warranty (values differ) | 1 yrs | — |
| Applications (values differ) | 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 | Xiaqi X02 |
|---|---|---|
| Investment | $12,000 | No price |
| Payback period | 2.9 mo | — |
| Net savings (5 yr) | $238,000 | — |
| ROI (5 yr) | +1983% | — |
Xiaqi X02 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 Xiaqi X02?
Darwin-OP is made by ROBOTIS Co., Ltd., based in KR. Xiaqi X02 is made by Digit Robotics, based in CN.
How do Darwin-OP and Xiaqi X02 compare on the Robo Index?
Darwin-OP grades AA on the Robo Index. Xiaqi X02 grades C. 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 Xiaqi X02 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 Xiaqi X02?
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 Xiaqi X02 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.