Head of Online Medical Content
Audiology Expert & Founder of Hearing Aid UK

What's current? | Phonak EON | Phonak Ultra | Virto Infinio hearing aids | Other useful information | Conclusion and key takeaways
Last Hearing Aid UK Update: 22
Phonak's newest hearing aid platform, EON, launched in the UK in September 2026 and is now the current flagship, built around a new dedicated AI chip for separating speech from background noise.
The previous flagship, Infinio Ultra Sphere, remains genuinely capable and more accessible, alongside the Infinio Ultra R and the custom-fit Virto Infinio range. Hearing Aid UK supplies and professionally fits all three current ranges throughout the UK, in clinic or via a free home visit.
Phonak's current ranges now sit across three families: the new EON platform, the Infinio Ultra range, and the Virto Infinio custom-made models for people who want discreet In-the-Ear options.
Here's what's current in the EON range:
Phonak states EON Sphere is 25% smaller and 20% lighter than the previous Sphere generation, and offers up to 38 hours of battery life on a single charge.
Here's what's current in the Infinio Ultra range:
Both models feature AutoSense OS 7.0, which Phonak states is 24% more precise than the previous generation at recognising your listening environment and adjusting accordingly.
Here are the current Virto Infinio custom ranges:
Recently discontinued Phonak ranges:
Audeo Infinio and Audeo Infinio Sphere, launched in August 2024, were replaced by the Infinio Ultra range in October 2025. Infinio Ultra Sphere itself was Phonak's flagship until EON launched in September 2026, and remains a strong, more accessible alternative to it.

Spheric Speech Clarity 3.0, which separates speech from background noise using the new HYPERSONIC chip, and AutoSense OS AI 8.0, which reads the wider listening environment and decides which processing features to engage. Phonak states this makes EON Sphere's chip 37% more efficient than the previous generation running the older Spheric Speech Clarity 2.0.
EON Sphere is built for people who regularly find speech-in-noise genuinely difficult: restaurants, family gatherings, busy workplaces. EON R carries the same scene intelligence and connectivity in a more accessible model, without the dedicated speech-separation hardware, for people whose listening challenges are less demanding day-to-day.
►Phonak EON Sphere E90 hearing aids
►Phonak EON R E90 hearing aids
"EON is a genuine step forward, not just a smaller version of what came before. But Infinio Ultra Sphere isn't obsolete overnight; it's still excellent technology, and for a lot of people the real-world difference won't be worth the price gap.
It comes down to being honest about how often you're actually struggling, not chasing the newest name."
says Paul Harrison, Audiology Expert & Founder, Hearing Aid UK

The Infinio Ultra Sphere isn't just a marketing claim about AI; it genuinely has dedicated hardware that most hearing aids don't. The DEEPSONIC chip does nothing but work on separating speech from background noise in real time.
Traditional hearing aids use directional microphones that focus on what's in front of you. The Sphere's AI can extract speech from any direction - behind, beside, in front - and handle multiple speakers simultaneously.
Phonak's research suggests you're three times more likely to understand every word in noisy environments compared with not having this technology. Available in technology levels i90 and i70 only.
►Phonak Infinio Ultra Sphere i90 hearing aids
The Ultra R offers sophisticated automated performance using the same AutoSense OS 7.0 technology, enhanced Bluetooth connectivity, and strong battery life, without the dedicated AI hardware. Available in four levels: i90, i70, i50 and i30, with i90 and i70 offering the fullest feature set.
►Phonak Infinio Ultra R i90 hearing aids

The Virto Infinio range brings the ERA platform technology to custom-made, In-the-Ear designs. These are moulded specifically to fit your ear canal, so they're as discreet as hearing aids get without being completely invisible.
Your audiologist takes an impression of your ear canal (or uses digital scanning), and the hearing aid is manufactured to precisely fit your ear.
This means better comfort and a more secure fit than universal receivers, but it also means you can't just swap them out if something goes wrong; they're specific to your ears.

The titanium model uses medical-grade titanium for the shell, which is both ultra-strong and 50% thinner than traditional acrylic. This allows for an even smaller, more discreet fit whilst maintaining durability.
Custom-made In-the-Ear aids sit in your ear canal, which means they're more prone to issues with earwax and moisture. They also can't include some features that Behind-the-Ear models offer, such as a telecoil option.
The Titanium models use size 10 batteries, which are the smallest available and might be fiddly if you have poor dexterity. But if visibility is your primary concern, and you're willing to accept these trade-offs, the Virto Infinio range offers impressive technology in a genuinely discreet package.
►Phonak Infinio Virto i90 hearing aids
►Phonak Infinio Virto Titanium i90 hearing aids

If you're reading this on behalf of a parent, partner, or friend who's struggling with hearing loss, you're doing them a genuine favour by taking the time to understand what's available.
The best next step is booking a consultation with one of our audiologists, either in the clinic or in the comfort of home. You're welcome to attend with them.
Many family members find it helpful to be there for the discussion, and audiologists appreciate having someone who can provide insight into real-world hearing challenges.
There's no obligation, and it's an opportunity to understand what current technology can actually achieve rather than relying on marketing claims.
Phonak's current ranges genuinely aren't one-size-fits-all. EON Sphere is the newest and most capable option for people who regularly struggle in noisy, multi-speaker environments. Infinio Ultra Sphere remains a strong, more accessible alternative with the same core speech-separation approach.
The Ultra R and EON R both offer excellent everyday performance without the dedicated AI hardware, and Virto Infinio models offer discretion for people who prioritise invisibility.
The key is being honest about where you actually struggle with hearing, not choosing technology because it's the newest name. If you're uncertain which model suits your needs, our audiologists can provide genuinely independent advice based on your specific situation.
Call us free on 0800 567 7621 or complete the form below to speak with one of our hearing specialists about Phonak hearing aids.
Phonak's current lineup spans two generations of speech-in-noise technology: the new EON platform and the Infinio Ultra range before it.
Both offer personalised sound settings, smartphone connectivity, and effective noise reduction, suited to a range of listening environments.
Most models are rechargeable, so you can pop them on charge overnight, and you can fine-tune your settings yourself through the myPhonak app. If you'd like more information about any of the current Phonak ranges, please contact us free on 0800 567 7621.
Phonak EON Sphere vs Phonak Infinio Ultra Sphere
Phonak Infinio Ultra Sphere i90 vs Unitron Smile Moxi RX 9
Rugged Hearing Aids Do not spend hundreds of pounds without getting a second opinion from us.
Not only are the prices great, but the service is fantastic! Many thanks to your team.In general, any audiologist will always recommend to you the hearing aid model that best suits your needs. Here is a useful checklist to make sure that is the case.
If you have significant hearing loss in both ears, you should be wearing two hearing aids. Here are the audiological reasons why:
Localisation: The brain decodes information from both ears and compares and contrasts them. By analysing the minuscule time delays as well as the difference in the loudness of each sound reaching the ears, the person is able to accurately locate a sound source.
Simply put, if you have better hearing on one side than the other, you can't accurately tell what direction sounds are coming from.
Less amplification is required: A phenomenon known as “binaural summation” means that the hearing aids can be set at a lower and more natural volume setting than if you wore only one hearing aid.
Head shadow effect: High frequencies, the part of your hearing that gives clarity and meaning to speech sounds, cannot bend around your head. Only low frequencies can. Therefore, if someone is talking on your unaided side, you are likely to hear that they are speaking, but be unable to tell what they have said.
Noise reduction: The brain has its own built-in noise reduction, which is only really effective when it is receiving information from both ears. If only one ear is aided, even with the best hearing aid in the world, it will be difficult for you to hear in background noise as your brain is trying to retain all of the sounds (including background noise) rather than filtering them out.
Sound quality: We are designed to hear in stereo. Only hearing from one side sounds a lot less natural to us.
Fancy some further reading on this topic? You can read about why two hearing aids are better than one in our article, hearing aids for Both Ears, here
For most people, the main benefit of a rechargeable hearing aid is simple convenience. We are used to plugging in our phones and other devices overnight for them to charge up. Here are some other pros and cons:
For anybody with poor dexterity or issues with their fingers, having a rechargeable aid makes a huge difference, as normal hearing aid batteries are quite small and some people find them fiddly to change.
One downside is that if you forget to charge your hearing aid, then it is a problem that can't be instantly fixed. For most, a 30-minute charge will get you at least two or three hours of hearing, but if you are the type of person who is likely to forget to plug them in regularly, then you're probably better off with standard batteries.
Rechargeable aids are also a little bit bigger and are only available in Behind-the-Ear models.
Finally, just like with a mobile phone, the amount of charge you get on day one is not going to be the same as you get a few years down the line. Be sure to ask what the policy is with the manufacturer's warranty when it comes to replacing the battery.
For most people, the answer is yes. But it's never that simple.
The majority of hearing problems affect the high frequencies a lot more than the low ones. Therefore, open fitting hearing aids sound a lot more natural and ones that block your ears up can make your own voice sound like you are talking with your head in a bucket. Therefore, in-ear aids tend to be less natural.
However, the true answer is we can't tell until we have had a look in your ears to assess the size of your ear canal, and until we have tested your hearing to see which frequencies are being affected.
People with wider ear canals tend to have more flexibility, also there are open fitting modular CIC hearing aids now that do not block your ears.
There is also the age-old rule to consider, that a hearing aid will not help you if it's sat in the drawer gathering dust. If the only hearing aid you would be happy wearing is one that people can't see, then that's what you should get.
Most people can adapt to any type of hearing aid, as long as they know what to expect. Have an honest conversation with your audiologist as to what your needs are.
Generally speaking, six or more. Unless it's none at all. The number of channels a hearing aid has is often a simplistic way an audiologist will use to explain why one hearing aid is better than another, but channels are complex, and it is really not that straightforward. Here are some reasons why:
Hearing aids amplify sounds of different frequencies by different amounts. Most people have lost more high frequencies than low, and therefore need more amplification in the high frequencies. The range of sounds you hear is split into frequency bands or channels, and the hearing aids are set to provide the right amount of hearing at each frequency level.
Less than six channels, and this cannot be done with much accuracy, so six is the magic number. However, a six-channel aid is typically very basic with few other features and is suitable only for hearing a single speaker in a quiet room. The number of channels is not what you should be looking at; it's more the rest of the technology that comes with them.
As a final note, different manufacturers have different approaches. One method is not necessarily better than any other. For example, some manufacturers have as many as 64 channels in their top aids. Most tend to have between 17 and 20. One manufacturer has no channels at all.
Manufacturer's warranties typically last between 2-5 years, depending on the brand and model, and cover defects in materials and workmanship. This includes repairs for component failures, electronic malfunctions, and manufacturing defects, but excludes damage from misuse, accidents, or normal wear. Most manufacturers also include loss and damage insurance for the first year.
We handle all warranty claims on your behalf, liaising with manufacturers and ensuring you get replacement devices quickly when needed. This comprehensive warranty coverage, combined with our lifetime aftercare, gives you complete peace of mind. Find out more about our warranty cover here
Our hearing tests are completely free, whether at our clinics or in your home. Unlike other providers who charge £30-£100 for home visits, we believe hearing healthcare should be accessible without financial barriers. Our comprehensive assessments include examination by an HCPC-registered audiologist, audiogram results, and personalised recommendations.
All testing, future adjustments, and ongoing support are included at no extra cost. While NHS tests are also free, typical 6-week waiting periods often lead people to seek immediate private testing. We provide prompt, professional assessments that fit your schedule and budget.
Yes, we offer completely free home visits throughout the UK, and this service is included in our prices with no additional charges. Home visits are particularly valuable for people with mobility issues, busy schedules, or those who simply prefer the comfort and convenience of their own environment.
Our audiologists can conduct full hearing tests, fit hearing aids, and provide ongoing support in your home. This service sets us apart from many providers who either don't offer home visits or charge extra for them.
We can offer prices up to 40% lower than high street retailers because of our business model. As a network of 200+ independent audiologists, we don't have the massive overheads of large retail chains - no expensive high street premises, no sales targets pushing audiologists to sell the most expensive options, and no costly marketing campaigns.
However, we maintain the same buying power as the big chains because we purchase on behalf of our entire nationwide network. This means you get access to the same premium hearing aids with professional service, but at genuinely competitive prices.
We offer a comprehensive 60-day money-back guarantee, which gives you twice the industry standard time to properly assess whether your hearing aids are right for you. This extended period recognises that adjusting to hearing aids takes time, and your brain needs several weeks to adapt to the amplified sounds.
Unlike many providers who offer just 30 days, we believe 60 days gives you the confidence to test your hearing aids in all the situations that matter to you - from quiet conversations at home to busy restaurants and outdoor activities.
When we refer to a product as 'Latest Launch', we mean it is the latest to be released on the market.
When we refer to a product as 'New', we mean that the product is the newest hearing aid model on the market.
When we refer to a product as 'Superseded', we mean that there is a newer range available which replaces and improves on this product.
When we refer to a product as an 'Older Model', we mean that it is has been superseded by at least two more recent hearing aid ranges.