Hearing Aid Comparison
Phonak and Signia launched their new flagship platforms on the same day — August 24, 2026 — which has not happened in this industry in recent memory and makes the comparison unusually clean. Two of the largest manufacturers in hearing, releasing their best work on the same morning, having made noticeably different bets.
Signia's bet is architectural. MaX runs four separate deep neural networks — one for detecting speech, one for recognising your own voice, one for reading the room, one for handling noise — coordinated as a single system it calls Acoustic Intelligence. Phonak's bet is the opposite kind of move: one neural network, refined, running on a new chip efficient enough to shrink the device and cheap enough to run that Phonak could push the feature down a technology level. Neither approach is obviously right, and nobody outside either company has measured either one.
This page is not a verdict, because a verdict would be dishonest at this stage. It is an account of what each device can and cannot do today, where each one clearly beats the other, and what evidence stands behind the claims. We fit both platforms at our San Mateo and San Carlos offices and have no commercial reason to prefer either.
If you want the specifications in isolation, they are on our Phonak EON and Signia MaX pages.
At a glance
- Phonak EON and Signia MaX launched on the same day, August 24, 2026. Neither has been measured by any independent laboratory.
- Connectivity is close to a straight trade: MaX has a telecoil today and Auracast promised by March 2027; EON has Auracast working today and no telecoil at all.
- EON launched as three models including a CROS for single-sided hearing, and supports Phonak's Roger remote microphones. MaX launched as one model with no CROS option.
- Signia has published no technology-tier structure for MaX. Phonak has, and put its neural network at the Standard 50 level as well as the two premium levels.
- Both sets of headline claims come from the manufacturers' own documents. Phonak's most-quoted figure is footnoted to a 2024 study of the previous generation's feature switched on versus off.
The connectivity trade, which is the clearest difference
This is where the two devices genuinely diverge, and it is close to a straight swap. Signia MaX puts Bluetooth Classic, Bluetooth LE Audio, a telecoil and Auracast hardware into every standard device, under the name OneConnect — but Signia's own launch footnote states that full Auracast functionality arrives in a firmware update by March 2027. So MaX today gives you a working telecoil and Auracast later. Phonak EON gives you Bluetooth Classic, LE Audio, RogerDirect and Auracast that works from launch day, joined by scanning a QR code in the myPhonak app — and no telecoil at all, on any model. So EON today gives you working Auracast and no telecoil ever. Which of those is right for you is not a technical question, it is a question about the buildings you actually go into. On the Peninsula, a good many theatres, houses of worship and civic spaces have hearing loops installed and comparatively few have Auracast transmitters yet. If there is a specific venue you attend and struggle in, tell us which one and we will find out what it broadcasts before you choose a device. That is a more useful half-hour than any specification comparison.
Roger is Phonak's, and it has no real equivalent
If you have ever sat in a meeting or a large restaurant and found that no hearing aid can help because the person you want to hear is simply too far away, this is the section that matters. Phonak's Roger system is a wireless remote microphone — a clip-on, a table unit, or a pen — that sends a talker's voice straight into the hearing aids at close-microphone quality, and RogerDirect means it does so without an extra receiver hanging off the device. EON supports it. Signia has partner-microphone accessories, and they are useful, but Roger is a different class of solution and has been for a decade. For someone still working, attending lectures, or eating out in genuinely loud rooms every week, Roger is often worth more than the difference between any two flagship platforms. It is also a separate purchase, and we will tell you honestly whether your life needs one.
Where Signia MaX clearly wins
Three things. The telecoil, as above, and for anyone whose main listening difficulty happens in a looped venue, that alone can settle it. Own voice processing: MaX identifies and manages the sound of your own voice without the in-clinic calibration step Signia used to require, which removes a real piece of fitting-day friction and matters more than it sounds to people who have previously abandoned hearing aids because their own voice sounded wrong. And the platform behind it — Signia IX, which MaX replaces, has an independent HearAdvisor score, a very wide range of styles including custom, instant-fit, slim, behind-the-ear and CROS, and remains on sale. That gives a Signia patient somewhere to go if the flagship does not suit their ear. We fit both brands, so we can say that without it costing us anything.
Where Phonak EON clearly wins
Also three things. Working Auracast, today, against a promise dated March 2027. Roger. And a wider launch line-up: EON arrived as three models — Audéo EON Sphere, Audéo EON R and a CROS EON for single-sided hearing — while MaX launched as one, the Pure Charge&Go MaX, with no CROS option on the platform. If you hear from one side only, EON can be fitted now and MaX cannot. There is a fourth, less visible advantage: Phonak has published its technology levels and told everyone that Spheric Speech Clarity 3.0 now runs at the Standard 50 level as well as Advanced 70 and Premium 90. Signia has published no tier structure for MaX at all. When you are being quoted several thousand dollars, knowing which version of the product you are being sold is not a small thing.
The evidence behind each one, read honestly
Neither device has been measured by anybody independent. HearAdvisor has published nothing on EON and nothing on MaX. Both sets of claims come from documents the manufacturers wrote themselves, and both deserve reading with the footnotes open. Signia's two headline figures — that 97% of wearers do better in noisy group conversation than with key competitors, and that MaX ranks first for signal-to-noise ratio in group conversation — cite white papers by Jensen and colleagues, dated 2026, which are Signia's own and which we have not been able to find published anywhere. The competitors are never named. Its most impressive-sounding number, 54 times more processing power, is footnoted only as a comparison against Signia IX. Phonak's headline figure — twice as likely to understand every word from any direction — cites a 2024 Phonak Field Study News by Wright and colleagues, in which the comparison is Spheric Speech Clarity switched on against the same hearing aids with it switched off. That is a real result, but it is about the previous generation of the feature, and it is not a comparison against any competitor or against anything you might currently own. Phonak's competitive claim, that the EON Sphere outperforms four other hearing aids for clear speech in loud noise, comes from a 2026 Phonak Insight and does not name the four. In short: both companies are making the same kind of argument from the same kind of source, and neither has been checked.
What neither of them will tell you yet
Neither manufacturer has published a price at any level. Neither has stated an IP rating for dust and moisture in its launch material. Neither mentions tinnitus therapy anywhere — which is conspicuous on both sides, because Phonak's Tinnitus Balance and Signia's Notch Therapy have each been standard equipment on the outgoing platforms for years. We expect both carry forward and we are not going to promise either until we have opened the fitting software ourselves. Both platforms launched receiver-in-canal only, so neither has a custom in-the-ear, powerful behind-the-ear or pediatric option, and for patients who need those the older platforms from either manufacturer are the answer rather than a compromise. And neither will have an independent laboratory measurement for months.
How we would actually decide
Start with your ears rather than the brochures. Your audiogram, the shape and health of your ear canals, your dexterity and whether you need a CROS fitting will eliminate one of these devices for a good number of people before any feature comparison begins. Then ask where you actually struggle. If it is a looped venue, that points to MaX. If it is distance and noise — meetings, lectures, restaurants — that points to EON and Roger. If it is your own voice sounding unnatural in previous hearing aids, that points to MaX. If it is single-sided hearing, EON is the one available today. If none of those apply, the two are close enough that the deciding factor should be which one sounds better to you in a demonstration, and after that, who is going to verify and adjust it. And if you want the option with the most evidence behind it rather than the most novelty, the honest answer is that it is neither of these — it is one of the platforms they replace, both of which have been independently measured and both of which are about to get cheaper.
Hear both in the same appointment
We can set EON and MaX up side by side, in the same visit, in a noisy environment rather than a quiet booth, and let you decide with your own ears. It takes about thirty minutes and costs nothing. Bring your most recent audiogram if you have one, or we will test first. Whichever you choose, we will program it to your prescription and confirm the result with real-ear measurement — which, on the evidence, will make more difference to how well you hear than the choice between these two platforms. Call 650-342-9449 or request an appointment at San Mateo or San Carlos.
Frequently asked questions
A few questions worth asking
Which is better, Phonak EON or Signia MaX?
Nobody can answer that honestly yet, because no independent laboratory has measured either one. What can be said is which suits which person: EON for single-sided hearing, for anyone who would benefit from a Roger microphone, and for anyone who wants Auracast working now; MaX for anyone whose key venues use hearing loops, since it has a telecoil and EON does not. Beyond that, choose in a demonstration with both in your ears.
Does Signia MaX have Auracast and does Phonak EON?
Both have the hardware. Only EON has it switched on. Signia's own launch footnote says full Auracast functionality on MaX arrives in a firmware update by March 2027. In the meantime MaX has a telecoil, which covers most of the venues on the Peninsula that broadcast anything at all, and EON has neither a telecoil nor a wait.
Can I use a Roger microphone with Signia MaX?
No. Roger is Phonak's system and works with Phonak hearing aids, including EON, through RogerDirect. Signia has its own partner-microphone accessories which are useful for one-to-one conversation, but they are not equivalent to Roger for distance and noise. If a remote microphone is central to how you get through your week, that consideration points firmly to Phonak.
Which one comes in more styles?
EON, at launch. It arrived as three receiver-in-canal models — Audéo EON Sphere, Audéo EON R and CROS EON — while Signia MaX launched as a single model, the Pure Charge&Go MaX, with no CROS option. Neither platform offers a custom in-the-ear, powerful behind-the-ear or pediatric fitting yet; for those, both manufacturers' previous platforms remain the answer.
Has either been independently tested?
Not as of late August 2026. HearAdvisor, the laboratory whose standardised measurements are the closest thing the industry has to a neutral referee, has published nothing on either device. Every performance figure in circulation for both platforms comes from documents the manufacturers wrote. The platforms they replace have both been measured and both scored well, which is worth weighing if evidence matters to you.
Do either of them help with tinnitus?
Neither company mentions tinnitus in its launch materials, which is unusual for both — Phonak's Tinnitus Balance and Signia's Notch Therapy have been standard on the outgoing platforms for years. We expect both features carry forward and we will confirm it in the fitting software rather than assume it. If tinnitus is your main reason for seeking help, our tinnitus service explains how we approach it.