Nucleus® Implant reliability

When choosing a cochlear implant, you want to trust that you are choosing the best hearing solution for today and for the future. That’s why reliability is so important.

Grandson whispers to grandpa

What you'll find on this page

  • Learn why implant reliability is important
  • Discover why Cochlear™ Nucleus® Implants are the most reliable today for both adults and children
  • Learn about Nucleus® Sound Processor reliability

Reliability you can count on

Cochlear™ Nucleus® Implants are the most reliable in the industry.1-3 Along with hearing performance, that’s a key reason why Cochlear is the most chosen1-3 hearing implant company. With more than 410,000 implants worldwide,1 no other company can match our record for implant reliability.1-3

We meet and report against independent global standards for implant reliability, publishing data of every implant generation, past and present.


Most Reliable Today Chart

Reliability data sourced from other manufacturers' reports: Advanced Bionics, MED-EL

* CSP = Cumulative Survival Percentage – CSP includes both device and accident-related issues.


Most Reliable Over Time Chart

* CSP = Cumulative Survival Percentage – CSP includes both device and accident-related issues.


Cochlear leads the way as the most trusted provider of hearing implants. When it comes to making the choice for your child, we understand that as a parent you want only the very best. With a market leading reliability over 10, 20 and 30 years, getting the very best means choosing Cochlear.1,2,3

Most Reliable for Children Chart

* CSP = Cumulative Survival Percentage – CSP includes both device and accident-related issues.



Cochlear Nucleus Sound Processor reliability

The Nucleus Sound Processors are built to be very durable and the reliability ratings support this. Sound processor reliability is measured by the number of sound processors that are returned over a period of time compared to the sound processors sold over that same time period - Failed Component Return Rate or FCRR. These returns can be due to mechanical, electrical, moisture or damaged/unknown malfunctions. The lower the number, the better.

  • Nucleus 7 Sound Processor: 0.4% FCRR over 2 years 1,4
  • Nucleus Kanso Sound Processor: 0.4% FCRR over 2 years 1

Why reliability matters

The world's first child recipient, Holly Taylor, has relied on her Cochlear Nucleus Implant for over 30 years. Discover why she says, 'I choose quality. I choose Cochlear.'

Cochlear Nucleus System reliability

Review our Nucleus Implant reliability report using the European Consensus Statement, International Classification of Reliability & ISO 5841-2 standards.

Download report

To review the ANSI/AAMI CI86 Standard Reliability Data for Cochlear Implants and Sound Processors, please click here. For more information outlining the difference between the reports, click here.


Please seek advice from your medical practitioner or health professional about treatments for hearing loss. They will be able to advise on a suitable solution for the hearing loss condition. All products should be used only as directed by your medical practitioner or health professional. Not all products are available in all countries. Please contact your local Cochlear representative.

Views expressed by Cochlear recipients and hearing health providers are those of the individual. Consult your hearing health provider to determine if you are a candidate for Cochlear technology. Outcomes and results may vary.


  1. Cochlear Nucleus Implant Reliability Report. Volume 19 | December 2020. D1805413 Cochlear Ltd; December 2020.
  2. Hearing Implant Reliability Reporting | MEDEL [Internet]. 2020 [cited 09 March 2020]. Available from:
  3. 2020 Global Implant Reliability Report. 027-N258-02 Rev A. Advanced Bionics AG and affiliates; 2020.
  4. Cochlear Nucleus System Reliability Report Reporting to ANSI/AAMI CI86 Standard. Volume 4 | December 2020. D1805415. Cochlear Ltd; 2020.