Open Bionics Hero ARM
Myoelectric hand function for below-elbow limb difference
Keep in mind Specialized clinical product; specifications are manufacturer documentation, not our independent performance test.
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The differences that matter
Ottobock C-Leg 4
Microprocessor-controlled stance and swing support
Keep in mind Specifications are sourced claims, not our independent performance measurement.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Wearable roboticsAdd 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 | Myoelectric hand function for below-elbow limb difference ↗ | Microprocessor-controlled stance and swing support ↗ |
| Form factor | Custom upper-limb prosthesis ↗ | Electronic prosthetic knee,3C98-3 family ↗ |
| Weight | Not verified | 2.75 lb ↗ |
| Water / dust rating | Not verified | IP68 ↗ |
| Software | Not verified | connectgo.pro updates ↗ |
| Control | Myoelectric sensors detect residual-limb muscle activity ↗ | Not applicable to this category |
| Grips | Multi-grip bionic hand ↗ | Not applicable to this category |
| Hand Weight | 340 g for standard Hero Hand ↗ | Not applicable to this category |
| Lifting | Up to 8 kg manufacturer claim ↗ | Not applicable to this category |
| Fitting | Custom-fitted socket and clinical assessment ↗ | Not applicable to this category |
| Feedback | Vibration, beepers, buttons and indicator lights ↗ | Not applicable to this category |
| Runtime | Not verified | Approximately 2 days ↗ |
| Body Weight Limit | Not applicable to this category | 136 kg /300 lb ↗ |
| Knee Flexion | Not applicable to this category | 130 degrees without flexion stop ↗ |
| Mobility Grades | Not applicable to this category | K2/K3/K4 ↗ |
| Material | Not applicable to this category | Carbon ↗ |
| Connections | Not applicable to this category | Pyramid/threaded proximal; distal tube clamp ↗ |
| Availability | Manufacturer documentation checked; local stock, final checkout and destination delivery not verified. | Professional fitted prosthetic component; no public complete hardware/limb purchase price verified. Colour choices grouped. |
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| Editorial pick & release | No editorial ranking recorded | 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.