MetaLimbs
Research on controlling additional robotic limbs through leg and foot movement
Keep in mind Historical research prototype; no production or present retail availability inferred.
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At a glance
The differences that matter
MIT supernumerary robotic fingers (2014)
Research on augmenting a human hand with two synchronised robotic fingers
Keep in mind 2014 research apparatus, not a currently available medical aid.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Frontier & researchAdd a model |  |  |
|---|---|---|
| Prices · all markets | Price not verified 0 offer records & sourcesNo verified price in this audit. | Price not verified 0 offer records & sourcesNo verified price in this audit. |
| Designed for | Research on controlling additional robotic limbs through leg and foot movement ↗ | Research on augmenting a human hand with two synchronised robotic fingers ↗ |
| Form factor | Back-mounted pair of robotic arms and hands ↗ | Wrist-mounted brace with two actuated extra fingers ↗ |
| Research Year | 2017 ↗ | 2014 ↗ |
| Additional Limbs | Two robot arms ↗ | Not applicable to this category |
| Global Tracking | Optical markers on knees and toes ↗ | Not applicable to this category |
| Local Tracking | Sock-type devices measure toe movement ↗ | Not applicable to this category |
| Mapping | Left/right feet mapped to respective robotic arms ↗ | Not applicable to this category |
| Hand Control | Foot/leg motion mapped into robot arms, hands and fingers ↗ | Not applicable to this category |
| Project Stage | Physical research prototype demonstrated at SIGGRAPH2017 ↗ | Not applicable to this category |
| Additional Digits | Not applicable to this category | Two fingers adjacent to the human thumb and little finger ↗ |
| Actuation | Not applicable to this category | Linked actuators generating grasp forces ↗ |
| Training Sensors | Not applicable to this category | Sensor glove records human finger joint positions ↗ |
| Control | Not applicable to this category | Algorithm correlates human and robotic grasp postures ↗ |
| Coupling | Not applicable to this category | Robot closes/spreads with the human hand ↗ |
| Study Objects | Not applicable to this category | Bottle, football and other grasped objects in prototype experiments ↗ |
| Availability | Author/laboratory research prototype; no consumer sale or public hardware purchase price verified. | Physical MIT research prototype described in July2014. No consumer price or production release verified. |
| Important context |
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| Editorial pick & release | #10 · Our Top 10 frontier research projectsRelease date not verifiedResearch or specialist clinical access | No editorial ranking recorded |
| Evidence | Manufacturer source Checked 2026-10-13 | Manufacturer source Checked 2026-10-13 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.