Össur Power Knee
Active powered assistance for a prosthetic knee
- Battery / power
- Interchangeable battery; one included ↗
Keep in mind Specifications are sourced claims, not our independent performance measurement.
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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 | Active powered assistance for a prosthetic knee ↗ | Microprocessor-controlled stance and swing support ↗ |
| Form factor | Motor-powered electronic knee prosthesis ↗ | Electronic prosthetic knee,3C98-3 family ↗ |
| Battery / power | Interchangeable battery; one included ↗ | Not verified |
| Weight | Not verified | 2.75 lb ↗ |
| Water / dust rating | Manufacturer describes dust/splash protection; no immersion claim ↗ | IP68 ↗ |
| Software | Not verified | connectgo.pro updates ↗ |
| Actuation | Motor provides powered swing and standing lift ↗ | Not applicable to this category |
| Adaptation | Real-time adjustment to speed and direction ↗ | Not applicable to this category |
| Stairs | Powered ascent and controlled descent resistance ↗ | Not applicable to this category |
| App | Össur Logic personalised settings and activity/battery monitoring ↗ | Not applicable to this category |
| Exercise Mode | Low-resistance mode for cycling/exercise ↗ | Not applicable to this category |
| Runtime | 25 hours stated battery life ↗ | 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 | Clinical prosthetic hardware supplied through certified practitioners; no complete public purchase price verified. | Professional fitted prosthetic component; no public complete hardware/limb purchase price verified. Colour choices grouped. |
| Important context |
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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.