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Ottobock
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Ottobock · Microprocessor knees · PR-029
Ottobock C-Leg 4 Microprocessor Knee
The Ottobock C-Leg 4 is a widely used microprocessor knee with stumble recovery during swing and activity modes set from a phone. Its electronics are protected to IP68, covering fresh water submersion to 3 metres for one hour. The knee detects sitting, can be locked by a tapping pattern and has a deep sleep mode to save charge. Shield covers come in Desert Pearl and Midnight Shadow.
- Mobility grade
- 2 to 4
- Max body weight
- 300 lb
- Water rating
- IP68, fresh water to 3 m for 1 h
- Power
- Rechargeable battery
Ottobock C-Leg 4 key features
- Stumble Recovery Plus active during swing
- IP68: fresh water to 3 m for 1 hour
- connectgo app for iOS and Android
- Manual lock triggered by a tapping pattern
- Automatic sitting detection and deep sleep mode
- Shields in Desert Pearl or Midnight Shadow
Who the Ottobock C-Leg 4 suits
Covers a wide span of users, mobility grades 2 to 4, with a transfemoral amputation or a knee or hip disarticulation and a body weight up to 300 lb. Fitting and programming are carried out by a certified prosthetist.
This kind of device is prescribed and fitted by a clinician. An enquiry starts that conversation. It is not a purchase.
Figures for comparing
- Max user weight
- 136.1 kg (300 lb)
The same units on every product, converted from the specifications below. Where a source gives two limits, the lower one is shown.
Ottobock C-Leg 4 specifications
| Mobility grade | 2 to 4 |
|---|---|
| Max body weight | 300 lb |
| Water rating | IP68, fresh water to 3 m for 1 h |
| Power | Rechargeable battery |
| Material | Carbon |
| App | connectgo, iOS and Android |
| Shield colours | Desert Pearl, Midnight Shadow |
| Amputation level | Transfemoral, knee and hip disarticulation |
| Maker country | Germany |
| Price | Quoted on request |
| Brand | Ottobock |
| Category | Lower limb - knees, hips and leg systems, Microprocessor knees |
| Catalog ID | PR-029 |
Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.
Ottobock C-Leg 4: common questions
Is the C-Leg 4 waterproof?
It is rated IP68. Ottobock says the electronics are protected from fresh water submersion up to 3 metres for one hour.
What is the weight limit of the C-Leg 4?
The maximum body weight is 300 lb.
Who can use a C-Leg 4?
It is listed for mobility grades 2, 3 and 4 and for transfemoral amputation, knee disarticulation and hip disarticulation.
How to get a quote for the Ottobock C-Leg 4
Add it to your enquiry list
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Get a personal reply
You receive availability, a price and delivery options by email, and decide after that.
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