Phonak Audéo EON Sphere

Phonak's newest hearing aid, announced in August 2026 and in UK clinics from September. It carries the new HYPERSONIC chip, and it is 25% smaller and 20% lighter than the Sphere it replaces, with up to 38 hours on a charge. Three levels: E90, E70 and E50.

HYPERSONIC AI chip  ·  Rechargeable  ·  Bluetooth, Auracast and Roger  ·  Fitted in clinic or at home
Phonak Audéo EON Sphere in Sand BeigePhonak Audéo EON Sphere in SandalwoodPhonak Audéo EON Sphere in ChestnutPhonak Audéo EON Sphere in ChampagnePhonak Audéo EON Sphere in Silver GreyPhonak Audéo EON Sphere in Graphite GreyPhonak Audéo EON Sphere in Velvet BlackPhonak Audéo EON Sphere in Sienna Red
Silver Grey

Eight colours. Yours to choose.

Sand Beige, Sandalwood, Chestnut, Champagne, Silver Grey, Graphite Grey, Velvet Black, and Sienna Red, which is new to this range. Click a swatch to see the shade. Your audiologist will bring the colours to your fitting so you can hold them against your hair and skin before you decide.

Hear EON for yourself
A real demo after your free hearing test
Free
Three levels
E90, E70 and E50, explained simply below
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Prices
Five tiers, set by technology level
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What has changed

Same idea, far smaller.

The last generation proved the point: a second chip separating speech from noise beats simply turning the background down. EON keeps that, and fixes the two things people asked about, the size and the battery.

The chip
HYPERSONIC

Phonak's new processor, which they say does the same real-time AI work on 37% less power. That is where the smaller shell and the longer battery come from.

The sound
Spheric Speech Clarity 3.0

The third generation of the speech separation Phonak built the Sphere range around, now alongside AutoSense OS AI 8.0, which decides what kind of room you have walked into.

Wind
WindBlock 2.0

Phonak quote up to 50 dB of wind noise reduction. If you walk, cycle, garden or watch football in the cold, this is the feature you will notice.

Connection
Auracast, and Roger

Bluetooth Classic for any phone, Bluetooth LE Audio, Auracast broadcast audio for theatres and airports, and Roger Direct built in for meetings and lectures.

Three levels

E90, E70 or E50?

Same chip and the same colours in all three. What changes is how hard the speech separation is allowed to work, and how finely we can shape the sound for you.

EON Sphere E90
The AI at full strength

For people whose real problem is busy places: restaurants, family gatherings, meetings. The speech separation runs without a cap.

  • Speech clarity at full strength
  • The most adjustment for us to work with
  • Every EON feature, nothing held back
Speech in noise★★★★
Fine tuning★★★★
EON Sphere E70
The sensible middle

The same technology with the speech separation held at a medium setting. Strong in noise, and the level most people settle on.

  • Speech clarity at medium strength
  • Same battery, colours and connectivity
  • Plenty of adjustment for everyday life
Speech in noise★★★☆
Fine tuning★★★☆
EON Sphere E50
The entry into EON

For quieter lives: home, one-to-one conversation, television, the occasional café. You still get the new chip and the new shell.

  • Speech clarity at its lowest setting
  • Same shell, battery and Bluetooth
  • A clear step up from older technology
Speech in noise★★☆☆
Fine tuning★★★☆
The practical detail

Styles, battery and the rest of the range.

Style and battery

Receiver-in-canal, rechargeable, in eight colours. Phonak quote up to 38 hours on a charge. Heavy streaming or constant speech separation will shorten that, and we will give you a realistic figure for how you live.

Size

25% smaller and 20% lighter than the previous Sphere. If you looked at the last generation and thought it was too big, look again.

Audéo EON R

The same new chip and shell without the dedicated speech separation, at a lower price. The right choice if noisy places are not your main problem.

CROS EON R

For hearing on one side only. The CROS device sits on the unaidable ear and sends sound across to the hearing aid on your better ear.

Frequently asked questions.

Same idea, smaller execution. EON keeps the dedicated second chip that separates speech from noise, but the new HYPERSONIC processor does that work on far less power. That is where the smaller shell and the longer battery come from: 25% smaller, 20% lighter, and up to 38 hours on a charge.

All three share the same chip, the same shell and the same colours. What changes is how hard the speech separation is allowed to work and how finely we can shape the sound. E90 runs it without a cap and suits people whose real problem is busy places. E50 is the entry point and still a clear step up from older technology.

Phonak announced EON in August 2026 and it reaches UK clinics from September. Book a free hearing test and we will tell you exactly where we are with it and let you hear the closest equivalent in the meantime.

It is a broadcast system that sends sound straight to your hearing aids in public places, appearing now in theatres, cinemas, stations and airports. It is genuinely useful where it exists, and the network is still growing. EON supports it, along with Roger for meetings and lectures.

Yes. CROS EON R picks up sound on the side you cannot hear from and sends it across to the hearing aid on your better ear. There is also Audeo EON R, which uses the same new chip and shell without the dedicated speech separation, at a lower price.

Why choose The Hearing Team?

Independent advice

We are not tied to Phonak or any single manufacturer, so you always get honest advice about what is genuinely right for you.

Try before you commit

A real demo after your hearing test, set to your results, with no pressure to order.

HCPC registered audiologists

Experienced clinicians fit and fine-tune every hearing aid, in clinic or at home.

Evenings and weekends

Appointments that fit around your work and family. We work around you.

60 day money back guarantee

Not right for you? Full refund, no obligation, plus manufacturer warranty from the date of purchase.

Aftercare included

A yearly hearing test and a full check of your hearing aids, included for as long as you own them.