top of page
< Back

Ossur Navii Bionic Knee

Cornerstone Running man

The Össur Navii® Expand Your World

Ossur Navii Bionic Knee

The Össur Navii is a fully waterproof, microprocessor-controlled knee (MPK) built to support active, adventurous, and unpredictable lives. At Cornerstone, we believe in prosthetic solutions that don’t limit you — they empower you. With Navii, you get stability, responsiveness, and freedom to move across diverse environments.

Who Is Navii For?

Navii is designed for a wide range of activity levels — from moderate everyday use to high-activity lifestyles:

  • K2 to K4 functional levels: from limited community ambulation to very active users.

  • Particularly well-suited for people who:

    • Live or spend time around water (beach, pool, ocean)

    • Need a reliable, rugged knee that can handle daily environmental exposure

    • Want a knee that adapts automatically to different activities

    • Appreciate an aesthetic, personalized design


Key Features & Benefits

Waterproof & Durable

  • IP68+ Rated: Navii is designed to handle full submersion in freshwater, saltwater, chlorine, sand, and mud.

  • Corrosion-resistant build keeps it working, even after exposure to the elements.

  • Easy to clean: remove the protective cover, rinse Navii, and you're good to go.


Stability & Control

  • Strong actuator adapts to standing, walking, and descending, delivering powerful but natural resistance for stability.

  • Variable-position mechanical lock: you can lock the knee securely at three angles (0°, 10°, 20°) for better stability when standing or seated.

  • Smooth swing dynamics: low friction swing supports a fluid, natural gait.


Adaptive, Intelligent Mobility

  • Automatic activity detection: Navii senses changes in what you're doing and adapts without manual mode switching — walking, running, cycling, stairs all flow naturally.

  • Enhanced descent control: new yielding control for ramp or stair descent gives consistent resistance even at high flexion.


Personalized Aesthetics

  • Interchangeable protective covers: Snap-on magnetic covers in five nature-inspired colors (e.g., Onyx Black, Luna Grey, Wave Blue) let you personalize your look.

  • Covers are designed to add both function (protecting the knee) and style.


Smart Connectivity & Training

  • The Össur Logic app integrates with Navii to provide a powerful user experience:

  • Functional training exercises (8 built-in) to help you build confidence and improve your gait.

  • Activity tracking & feedback so you can monitor your progress over time.

  • Prosthetists can use the app for setup wizard, customizing your profile and generating activity reports.

bottom of page