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.
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The differences that matter
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.
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 augmenting a human hand with two synchronised robotic fingers ↗ | Research on controlling additional robotic limbs through leg and foot movement ↗ |
| Form factor | Wrist-mounted brace with two actuated extra fingers ↗ | Back-mounted pair of robotic arms and hands ↗ |
| Research Year | 2014 ↗ | 2017 ↗ |
| Additional Digits | Two fingers adjacent to the human thumb and little finger ↗ | Not applicable to this category |
| Actuation | Linked actuators generating grasp forces ↗ | Not applicable to this category |
| Training Sensors | Sensor glove records human finger joint positions ↗ | Not applicable to this category |
| Control | Algorithm correlates human and robotic grasp postures ↗ | Not applicable to this category |
| Coupling | Robot closes/spreads with the human hand ↗ | Not applicable to this category |
| Study Objects | Bottle, football and other grasped objects in prototype experiments ↗ | Not applicable to this category |
| Additional Limbs | Not applicable to this category | Two robot arms ↗ |
| Global Tracking | Not applicable to this category | Optical markers on knees and toes ↗ |
| Local Tracking | Not applicable to this category | Sock-type devices measure toe movement ↗ |
| Mapping | Not applicable to this category | Left/right feet mapped to respective robotic arms ↗ |
| Hand Control | Not applicable to this category | Foot/leg motion mapped into robot arms, hands and fingers ↗ |
| Project Stage | Not applicable to this category | Physical research prototype demonstrated at SIGGRAPH2017 ↗ |
| Availability | Physical MIT research prototype described in July2014. No consumer price or production release verified. | Author/laboratory research prototype; no consumer sale or public hardware purchase price verified. |
| Important context |
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| Editorial pick & release | No editorial ranking recorded | #10 · Our Top 10 frontier research projectsRelease date not verifiedResearch or specialist clinical access |
| 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.