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Phonak
Introductory Offer
4-Year Warranty. Included.
One additional year of coverage with your qualifying Phonak Audéo EON purchase
$399
This model qualifies — the fourth year of warranty coverage is included with your purchase automatically, no code needed.
Introductory offer valid on qualifying Phonak Audéo EON purchases through Friday, September 18, 2026. Includes a fourth year of warranty coverage—a $399 value. Coverage subject to warranty terms and exclusions. Contact a hearing specialist for eligibility and full details.
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Premium EON Sphere technology
The Audéo EON Sphere E90 is Phonak's premium answer to the hardest listening situation there is: following conversation in loud, layered noise. A dedicated HYPERSONIC AI chip runs Spheric Speech Clarity 3.0 for clearer speech in noise, while AutoSense OS AI 8.0 handles everyday sound automatically. The hearing aids are rechargeable and stream directly from compatible iPhone and Android phones.
Buying guidance
E90 is the top technology level in the EON Sphere family. It is best suited to people who regularly spend time in the situations hearing aids find hardest: restaurants, group tables, meetings, and rooms full of competing voices.
Compare other Phonak hearing aids or ask our hearing professionals which model fits your audiogram and routine.
HYPERSONIC AI chip
Most hearing aids process every environment on one chip. The EON Sphere adds a second, dedicated AI chip — HYPERSONIC — whose only job is separating speech from noise. It runs Spheric Speech Clarity 3.0, Phonak's most advanced speech-in-noise processing, so voices stay clear when the room gets loud.
You do not have to manage any of it. AutoSense OS AI 8.0 identifies the kind of environment you are in and, on the E90, turns on Spheric Speech in Loud Noise automatically when the noise builds — then turns it off again when things quiet down.
Interactive listening demonstration
Reading about speech in noise only goes so far. This demo lets you hear the same busy scene with and without AI processing. Headphones or good speakers work best.
Press play, then switch between AI Off and AI On whenever you like. Both versions stay at the same point so you can hear the difference for yourself.
What to listen for
The conversation competes with moving voices and crowd noise. Notice how much attention it takes to stay with the speaker.
From morning to night
A full charge takes 2.5 hours and is rated for 29 hours of expected use — up to 38 hours maximum depending on streaming, features, and battery condition.
Audio streams directly from a compatible iPhone or Android phone. Hands-free calling is supported on compatible devices, so you can answer without reaching for the phone.
AutoSense OS AI 8.0 recognizes the noise and the E90 engages Spheric Speech in Loud Noise automatically, putting the HYPERSONIC chip to work on the conversation in front of you.
WindBlock 2.0 works on wind noise outdoors, and the IP68-rated housing is tested against dust and water exposure for everyday conditions.
Drop both hearing aids into the charger before bed. If you ever need a quick top-up during the day instead, about an hour of charging restores over half the battery.
Rechargeable power
Phonak rates the EON Sphere at 29 hours of expected operating time on a full charge, with a maximum of up to 38 hours. Where you land in that range depends on how much you stream, which features are active, the environments you spend time in, and the age of the battery.
Charging takes 2.5 hours for a full charge, about 2 hours to 90%, and about 1 hour to 55%. Your order includes Phonak's Premium ChargerGo, a portable case with its own internal battery rated for up to three full recharges away from an outlet. The EON Sphere is also compatible with Phonak's plug-in Charger RIC E if you want a simple desk charger at home.
The Premium ChargerGo is the portable charger that ships with the EON Sphere. Phonak's plug-in Charger RIC E is also compatible if you prefer a desk charger without a built-in travel battery.
Bluetooth and app control
The EON Sphere supports both Bluetooth Classic Audio and the newer Bluetooth LE Audio standard, including Auracast broadcast audio. It works with a wide range of current phones, and it can join Auracast broadcasts in venues that offer them.
Stream calls, music, podcasts, and video audio from compatible iPhone and Android devices. Hands-free calling depends on your phone's compatibility.
Join compatible Auracast broadcasts in public venues as availability grows — no extra receiver needed when the transmitting venue supports it.
Adjust volume and programs discreetly from your phone, and access supported remote features through the myPhonak app.
The optional TV Connector accessory streams television audio directly to both hearing aids at your own volume.
Compatible with Phonak's Roger microphone portfolio for lectures, large meetings, and times when the person speaking is farther away.
A clip-on PartnerMic for one-to-one distance listening and a simple RemoteControl are also available.
Technology levels
Start with the kind of help you want, then match the technology level to the places where you spend your time. This guide compares every Audéo EON R and Audéo EON Sphere option without treating a longer feature list as the whole decision.
Sphere adds the dedicated HYPERSONIC AI chip and Spheric Speech Clarity 3.0 across its E50, E70, and E90 levels.
EON R gives you the full four-level range, including the Essential E30 starting point. It also supports CROS E-R; EON Sphere is not CROS-compatible.
Move higher when more of your week involves changing rooms, competing voices, meetings, restaurants, and group conversation. The right starting point still depends on your hearing loss, fitting, and personal priorities.
Best fit when: the hardest listening situations are a regular part of life and you want Sphere’s fullest automatic support.
Best fit when: frequent meetings, groups, restaurants, and changing environments call for the broadest EON R support.
Best fit when: restaurants, group conversation, and other loud settings are frequent and automatic Sphere support matters.
Best fit when: busy places and varied listening days are regular, but you do not need every E90 refinement.
Best fit when: you want Sphere’s dedicated loud-noise processing for occasional difficult situations and are comfortable selecting its additional program.
Best fit when: most days mix one-to-one conversation, errands, driving, and occasional background noise.
There is no E30 Sphere model. Choose EON R E30 for the Essential tier, or move to Sphere E50 for the HYPERSONIC chip and Spheric Speech Clarity 3.0.
Best fit when: listening is mainly quieter, familiar, and one-to-one, with fewer demanding group environments.
This proof layer shows only the programs and features that change across the seven models. “Additional program” means the feature is available separately rather than included in the automatic AutoSense OS AI mix. Select any information icon for a plain-language explanation.
| Technology difference | E90 Premium | E70 Advanced | E50 Standard | E30 Essential | |||
|---|---|---|---|---|---|---|---|
| Sphere E90 Current |
EON R E90 | Sphere E70 | EON R E70 | Sphere E50 | EON R E50 | EON R E30 | |
Spheric Speech Clarity 3.0Spheric Speech Clarity 3.0Sphere-specific processing that separates speech from surrounding noise to help make voices clearer from any direction in demanding group conversations. |
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Loud-noise program behaviorLoud-noise program behaviorShows whether the model can select its loud-noise program automatically, offers it as an additional program, or does not provide it. |
Automatic + additional | Automatic + additional | Automatic + additional | Additional program | Additional program | ||
Speech EnhancerSpeech EnhancerMakes soft speech or speech from a distance easier to understand in quiet settings. |
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SpeechSensorSpeechSensorImproves access to speech coming from the side or behind in noisy settings. |
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StereoZoom 2.0StereoZoom 2.0Seamlessly narrows the listening focus toward speech in front of you in challenging environments. |
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Dynamic Noise CancellationDynamic Noise CancellationReduces background noise arriving from the side and behind while the hearing aids focus forward. |
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Music in AutoSense OS AIMusic in AutoSense OS AIA listening program tuned for music. Automatic means AutoSense can recognize and select it; additional only means it must be added or selected separately. |
Automatic | Automatic | Automatic | Automatic | Additional only | Additional only | Additional only |
Speech in Car in AutoSense OS AISpeech in CarAn AutoSense sound environment designed for conversation while riding in a vehicle, where road and cabin noise are present. |
Automatic | Automatic | Automatic | Automatic | Automatic | Automatic | |
Comfort in Noise in AutoSense OS AIComfort in NoiseAn AutoSense sound environment that emphasizes listening comfort in noise when following speech is not the main goal. |
Automatic | Automatic | Automatic | Automatic | Automatic | Automatic | Additional only |
Speech in 360°Speech in 360°A selectable speech-in-noise program designed to help when the voice you want to hear is beside or behind you instead of directly ahead. |
Additional program | Additional program | Additional program | Additional program | |||
Motion Sensor HearingMotion Sensor HearingAutomatically adjusts the hearing aids while you are walking in noisy surroundings. |
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Fine-tuning channelsFine-tuning channelsFrequency-adjustment channels available during professional fitting. More channels allow finer programming; they are not a direct sound-quality score. |
20 | 20 | 20 | 20 | 16 | 16 | 12 |
CROS E-R compatibilityCROS E-R compatibilityCROS E-R picks up sound on the poorer-hearing side and routes it to the hearing aid on the other ear. Audéo EON R is compatible; Audéo EON Sphere is not. |
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Fine-tuning channel counts help describe fitting flexibility; they are not a direct score for sound quality. Program availability is based on Phonak’s official Audéo EON performance-level matrix.
Comfort and durability
The EON Sphere body measures 28.7 mm tall and weighs 2.4 grams, designed to sit lightly and discreetly behind the ear. A thin receiver wire carries sound into the ear canal, and five receiver strengths let one design cover mild through profound hearing losses.
The housing is IP68 rated: tested for 60 minutes in 1 meter of fresh water and 8 hours in a dust chamber. That covers rain, sweat, and daily life — but it is protection, not an invitation to swim with them.
On-screen swatches are approximate.
Wholesale Hearing Direct care
Your hearing aids are programmed to your hearing test by licensed providers before they ship, and our team remains available after they arrive.
Talk with a hearing professional if you want help choosing between technology levels or confirming phone compatibility before you order.
Common questions
The EON Sphere carries a dedicated HYPERSONIC AI chip that runs Spheric Speech Clarity 3.0, Phonak's most advanced speech-in-noise processing. On the E90 level, AutoSense OS AI 8.0 engages that support automatically when it detects loud, complex noise, so you get the help without changing programs yourself. Results still depend on your hearing loss, fitting, and environment.
Phonak rates the EON Sphere at 29 hours of expected operating time, with a maximum of up to 38 hours depending on streaming, active features, environment, and battery condition. A full charge takes 2.5 hours, and about one hour of charging restores 55% of the battery.
Yes, with compatible devices. The EON Sphere supports Bluetooth Classic Audio plus Bluetooth LE Audio and Auracast, which covers direct streaming from compatible iPhone and Android phones. Hands-free calling, LE Audio, and Auracast each depend on your specific phone model and operating system, so check Phonak's current compatibility information for your device.
Start with the family: Audéo EON R offers E30 through E90 and supports CROS E-R, while Audéo EON Sphere is not CROS-compatible, starts at E50, and adds the HYPERSONIC AI chip with Spheric Speech Clarity 3.0 for speech in loud noise. Then choose the level by listening complexity: E30 suits mainly quiet, familiar routines; E50 covers mixed everyday listening; E70 adds more support for regular busy places; and E90 provides the broadest automatic and premium feature set. Your hearing loss, fitting, and priorities still matter, so use the guide as a starting point.
Both are rechargeable receiver-in-canal hearing aids on Phonak's EON platform, with the same size, weight, and battery ratings. The Sphere adds the dedicated HYPERSONIC AI chip with Spheric Speech Clarity 3.0 for clearer conversation in loud noise. The Audeo EON R also offers a simpler essential technology level (E30) and supports CROS E-R; EON Sphere is not CROS-compatible.
No. It is IP68 rated, which means it was tested for 60 minutes in 1 meter of fresh water and 8 hours in a dust chamber. That protects against rain, sweat, and daily exposure, but the hearing aids should not be worn for swimming or showering.
No. The E90 works fully as a professionally fitted hearing aid without any phone. A compatible smartphone adds streaming, hands-free calling on supported devices, and discreet adjustments through the myPhonak app.
Your order includes the Premium ChargerGo, Phonak's portable charging case with an internal battery rated for up to three full recharges away from an outlet. A full charge takes 2.5 hours. The EON Sphere is also compatible with Phonak's plug-in Charger RIC E if you prefer a desk charger at home.
