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Hiwonder LeRobot SO-ARM101 Open-Source Robotic Arm
Axes
6
Hiwonder official store (verified) · Updated 2026-07
$269.99 is Hiwonder's listed price. The SO-ARM101 is an open-source design sold by several vendors — DIY kits start near $199 and assembled leader-follower pairs with cameras run roughly $200–$400 depending on vendor and kit tier. The DIY kit excludes cameras; Standard and Advanced kits include them. Compare kit contents, not just headline price.
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About the Hiwonder LeRobot SO-ARM101 Open-Source Robotic Arm
The SO-ARM101 is the hardware half of Hugging Face's LeRobot stack and the most important thing to happen to educational robot arms in years: a fully open-source, largely 3D-printed 6-DOF arm that costs under $300 and is natively supported by the LeRobot library. It ships as a leader-follower pair, so imitation learning — physically guiding the leader arm while the follower records the demonstration — works out of the box rather than requiring a custom rig. Hiwonder's build uses six high-torque bus servos with magnetic feedback (HX-10HM on the leader, HX-30HM on the follower) plus gripper-mounted and external cameras. What you are buying is a research and teaching platform, not a robot: there is no safety rating, no published repeatability, and the printed structure will not survive production duty. For learning modern robot-learning methods, nothing else is close on price.
Full Specifications
| Spec | Value |
|---|---|
| Axes | 6 |
Pros & Cons
Pros
- +Under $300 for a 6-axis arm with AI vision — the cheapest serious embodied-AI platform
- +Natively supported by Hugging Face's LeRobot library
- +Leader-follower pair enables imitation learning out of the box
- +Six 30kg high-torque bus servos with magnetic feedback
- +Fully open source — replaceable 3D-printed parts
- +Used in academic labs worldwide
Cons
- −Not a production robot — no safety rating or industrial certification
- −3D-printed structure limits precision and durability
- −DIY kits require assembly and troubleshooting
- −Payload and repeatability are not specified by the vendor
- −Support quality varies by which vendor you buy from
Best For
Pricing Details
$269.99 is Hiwonder's listed price. The SO-ARM101 is an open-source design sold by several vendors — DIY kits start near $199 and assembled leader-follower pairs with cameras run roughly $200–$400 depending on vendor and kit tier. The DIY kit excludes cameras; Standard and Advanced kits include them. Compare kit contents, not just headline price.
Note: $269.99 is Hiwonder's listed price. The SO-ARM101 is an open-source design sold by several vendors — DIY kits start near $199 and assembled leader-follower pairs with cameras run roughly $200–$400 depending on vendor and kit tier. The DIY kit excludes cameras; Standard and Advanced kits include them. Compare kit contents, not just headline price.
Price delivered to you? The figure above is a reference. We quote the LeRobot SO-ARM101 with shipping to your country.
Get a quoteSee how the LeRobot SO-ARM101 fits the wider market in our 2026 educational robot prices guide.
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LeRobot SO-ARM101 — frequently asked questions
How much does the Hiwonder LeRobot SO-ARM101 Open-Source Robotic Arm cost?
The Hiwonder LeRobot SO-ARM101 Open-Source Robotic Arm costs $269.99 (Hiwonder official store (verified), updated 2026-07). As a Chinese-manufactured educational robot, it typically undercuts comparable Western models significantly.
What is the LeRobot SO-ARM101 best for?
The Hiwonder LeRobot SO-ARM101 Open-Source Robotic Arm is best suited for embodied AI research, imitation learning, STEM education, LeRobot development, and teleoperation experiments.