SO-101Hugging Face LeRobot source ↗Robot Comparison · Interactive
SO-101 vs A2
A symmetrical comparison using normalized manufacturer-reported specifications. Green highlights mark the stronger value only where the specification has a defensible direction.
SO-101Hugging Face LeRobot source ↗
A2Unitree Robotics source ↗FieldAt a Glance
Hugging Face LeRobot · Open buildSO-101Fixed manipulator · verified Aug 29, 2026
Unitree Robotics · Commercially availableA2Quadruped · verified Aug 29, 2026
Cross-Category ComparisonThese platforms do not share a sourced form factor, use case, or editorial comparison rationale, but their normalized specifications remain available below.
Technical Differences
Side-by-Side Specifications
Interactive only
| Field | SO-101 | A2 |
|---|---|---|
| Manufacturer | Hugging Face LeRobot | Unitree Robotics |
| Version | SO-101 | Unknown |
| Form factor | Fixed manipulator | Quadruped |
| Availability | Open build | Commercially available |
| Primary use | Robotics research, data collection, and policy evaluation | Industrial inspection and material transport |
| Starting price | Unknown | Unknown |
| Price qualifier | Bill-of-materials cost varies | Contact sales |
| Height (m) | Unknown | 0.57 |
| Weight (kg) | Unknown | 42 |
| Payload (kg) | Unknown | 25 |
| Runtime (hours) | Unknown | 5 |
| Maximum speed (m/s) | Unknown | 3.7 |
| Degrees of freedom | 6 | 12 |
| Reach (m) | Unknown | Unknown |
| Battery | External power; configuration depends on sourced motors | Dual-battery support; manufacturer states more than five hours unloaded |
| Sensors | user-configured cameras, joint position feedback | 3D LiDAR, wide-angle cameras, optional inspection payloads |
| Onboard compute | Host computer supplied by the builder | Industrial controller with developer interfaces |
| Software | Hugging Face LeRobot, Feetech SDK | autonomous navigation stack, secondary development interfaces |
| Safety | configurable maximum relative joint target | IP56 enclosure, obstacle avoidance, automatic recovery |
| Control modes | leader-arm teleoperation, learned policy | autonomous missions, remote control, developer control |
| Target applications | imitation learning, VLA evaluation, robotics education | industrial inspection, material transport, emergency response, research |
13 comparable fields · 13 material differences · Interactive comparison only; editorial indexing gate not met
SO-101 Positioning
Primary useRobotics research, data collection, and policy evaluation
AvailabilityOpen build
Starting priceBill-of-materials cost varies
Canonical IDlerobot/so-101
A2 Positioning
Primary useIndustrial inspection and material transport
AvailabilityCommercially available
Starting priceContact sales
Canonical IDunitree/a2
Primary Evidence
Manufacturer Sources and Freshness
SO-101 assembly and hardware documentationHugging Face LeRobot · observed Aug 29, 2026Unitree A2 product specificationsUnitree Robotics · observed Aug 29, 2026
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Questions
SO-101 vs A2 FAQs
Which is better, SO-101 or A2?+
There is no defensible overall robot winner without a target task and environment. Compare form factor, availability, payload, runtime, speed, sensing, control, safety, and price; green highlights apply only to specifications with an explicit direction.
Which can carry more, SO-101 or A2?+
A direct answer is unavailable because SO-101 does not publish a normalized payload (kg) in the current source.
Which runs longer, SO-101 or A2?+
A direct answer is unavailable because SO-101 does not publish a normalized runtime (hours) in the current source.
Which is faster, SO-101 or A2?+
A direct answer is unavailable because SO-101 does not publish a normalized maximum speed (m/s) in the current source.
Which costs less, SO-101 or A2?+
A normalized price comparison is unavailable. SO-101: Bill-of-materials cost varies. A2: Contact sales.
Can I buy SO-101 or A2 today?+
SO-101 is recorded as open build (LeRobot publishes assembly and sourcing instructions rather than selling a single finished configuration.); A2 is commercially available (Unitree accepts commercial inquiries for A2 configurations.). Availability can be regional or customer-specific.
What are SO-101 and A2 designed to do?+
SO-101: Robotics research, data collection, and policy evaluation. A2: Industrial inspection and material transport.
What sensors do SO-101 and A2 use?+
SO-101: user-configured cameras, joint position feedback. A2: 3D LiDAR, wide-angle cameras, optional inspection payloads.
What software and control options do SO-101 and A2 support?+
SO-101: Hugging Face LeRobot, Feetech SDK. A2: autonomous navigation stack, secondary development interfaces. SO-101: leader-arm teleoperation, learned policy. A2: autonomous missions, remote control, developer control.
Are SO-101 and A2 the same type of robot?+
No. SO-101 is a fixed manipulator platform; A2 is a quadruped platform. Direct specification comparisons may therefore reflect different jobs.