Phonak Audeo EON

About Phonak's EON Audeo hearing aids.

Phonak's latest release in August September 2026 in the UK is powered by their new HYPERSONIC™ AI chip. It combines next-generation AI, advanced speech processing and industry-leading bluetooth connectivity (finally with AURACAST) to help deliver more confident conversations.

Phonak EON has up to 38 hours of battery life if not streaming and it's successful Spheric Speech Clarity 3.0 (This is the AI feature that truly pulls out speech from background noise using AI technology processing), AutoSense OS™ AI 8.0 (The environment classifier switching between different environments it senses you are in and automatically processing the sound to give you the best clarity) and WindBlock 2.0 (As the name states, it reduces windnoise!)

Two versions of Phonak EON exist

1.) Audeo E-sphere

This sphere version has the Hypersonic AI chip. NO CROS features. 3 technology levels are available - 90/ 70/ 50

Level 50 requires manual activation of AI component (which could save battery! but adds the mental load of remembering to activate it when it is needed).

If the aids are constantly in spheric speech , then you will get 11-12hrs of battery life.

2.) Audeo Non - sphere version

This version has no Hypersonic AI chip. It is has a CROS version (hurrah!)

Appearance

The audeo sphere is smaller than it's older Infinio predecessor. Standard colours are available but Sedona Red (lovely coppery red) has been added

Fitting range

The EON hearing aids still have a wide fitting range to cover mild to severe ranges of hearing loss. SNR refers to the amount of separation for speech from noise. The greater the number, the greater the separation, and vice versa.

Hypersonic AI chip delivers 10.2 dB SNR. This reduces as you drop down tech levels.

Battery life

The Audeo EON is only available in a rechargeable form. 38hr non streaming, 22-24hr with streaming, 11-12hrs if constantly in sphere. 20hrs for CROS devices. Battery charger is included as standard. The charger itself can come with or without power bank options.

Connectivity

Finally! Auracast is available inside EON and EON sphere aids. Auracase is still not in older tech (despite claims made previously that older models will be accommodated for; we are still waiting!). Phonak Audeo's work well with Android and Made for Apple phones. They appear to work best with Samsung Android phones.

Auracast is Bluetooth audio broadcast for public places, e.g., churches, museums, bars, public transport, cinema. Note connectivity with Auracast and some iphones may require a QR code to connect. Whereas with Android phones one can access Auracast simply using a drop down list, no QR code is required. The sound quality, distance coverage and stability is better with Auracast.