Nucleus Nexa by Cochlear Ltd: status and timeline

Milestones

Next · Expansion to India and Korea

First commercial Nucleus 22 implant1982Complete.
Nucleus Nexa chipset finalized2025Complete.
FDA clearance and first VA availability (military veterans)Jan 2026Complete.
Launch at World Congress of Audiology (Seoul)27 May 2026Complete.
CE Mark approval (Europe)Q3 2026Complete.
Expansion to India and KoreaTarget 2026Current milestone.
First firmware update for usersTarget 2027Not yet reached.

Most important updates

Cochlear launches Nucleus Nexa at World Congress of Audiology in Seoul27 May 2026
Cochlear brings Nucleus Nexa smart implant system to India market2 Mar 2026
Cochlear announces Nucleus Nexa smart implant available to US military veterans through VA clinics8 Jan 2026
Cochlear Ltd formed to commercialize Dr. Graeme Clark's cochlear implant research1981

Upcoming

2026Expansion to India and Korea (next)
2027First firmware update for users
2027First firmware update release

Current obstacles

Candidacy and adoptionSurgery carries risks; hearing-impaired children face educational barriers to adoption.
Music and tonal languagesImplants optimize for speech; music and tonal perception suffer from limited frequency resolution.
Bilateral mismatchesMany users have one implant + one hearing aid, causing perceptual asymmetry.

Physics limits

Channel count22 electrodes vs. 16,000 hair cells; frequency resolution is much lower than natural.
Temporal fidelityElectrical pulses cannot match the nanosecond timing precision of natural sound waves.
Device lifespanTypical lifespan 10–20 years; replacement requires repeat surgery.

How it works

3 parts

Array

Multi-channel electrode

22 electrodes thread into the cochlea; each fires a frequency band.

Processor

Real-time encoding

Sound is captured, encoded, and transmitted wirelessly to the implant.

Memory

On-implant MAPs

Nexa stores hearing settings on-chip; no clinic visit needed to transfer to a new processor.

Spec sheet

Spec	Nucleus Nexa
Years since last implant chipset update	20 years^R (reported)
Firmware upgradeable	Yes^R (reported)
Kanso 3 Nexa rechargeable battery	All-day^R (reported)

^R reported by the company

Papers & demos

2 items

1982demo
First commercial Nucleus 22 implant (opens cochlear.com)Graham Carrick received the first commercial cochlear implant, proving hearing restoration.
1977demo
First multi-channel cochlear implant (opens en.wikipedia.org)Dr. Graeme Clark's implant used multiple electrodes for frequency-based stimulation.

Update log

4 updates

About Cochlear Ltd

The team behind Nucleus Nexa

Cochlear Ltd

Cochlear implants, smart implants, hearing restoration

Cochlear is the global leader in implantable hearing solutions. Over 400,000 people in 100+ countries hear via Cochlear implants or bone-anchored hearing aids. In May 2026, Cochlear launched Nucleus Nexa, the first smart implant with upgradeable firmware.

Founded 1981 to commercialize Dr. Graeme Clark's cochlear implant research. Went public in 1995.
Over 400,000 people globally hear via Cochlear implants or bone-anchored hearing aids.
Nucleus Nexa (May 2026) is the first smart cochlear implant with upgradeable firmware.

cochlear.com (opens cochlear.com)Company profile →

Founded: 198145 yrs
Headquarters: Australia
Status: Public
Valuation: $4.2Bmarket capMay 2026
Staff: ~5,500Feb 2026
Last round: IPO1995
Works in: NeurotechCochlear implants
Coverage: 1 program · 4 updateslatest 27 May 2026checked 11 Oct
Lead investors: Australian Government
Customers: US Department of Veterans Affairs (opens va.gov)
Partners: University of Melbourne (opens unimelb.edu.au)
Acquired by: Entific Medical Systems (opens cochlear.com)
People: Dig Howitt (opens cochlear.com)CEO & Managing DirectorGraeme Clark (opens en.wikipedia.org)Co-founder & Researcher (University of Melbourne)

Spec

Nucleus Nexa

Years since last implant chipset update

20 years^R (reported)

Firmware upgradeable

Yes^R (reported)

Kanso 3 Nexa rechargeable battery

All-day^R (reported)

Nucleus Nexa

Milestones

Most important updates

Upcoming

Current obstacles

Physics limits

How it works

Multi-channel electrode

Real-time encoding

On-implant MAPs

Spec sheet

Papers & demos

Update log

Wed 27 May

Mon 2 Mar

Thu 8 Jan

1981

About Cochlear Ltd

Current obstacles

Physics limits

How it works

Multi-channel electrode

Real-time encoding

On-implant MAPs

Spec sheet

Papers & demos

Update log

Wed 27 May

Mon 2 Mar

Thu 8 Jan

1981

About Cochlear Ltd