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Phonak Audeo Infinio Sphere i90 R Hearing Aids Product Highlights

Tech Rating:
Our Price
£1995 per aid
£3695 per pair

Fitting Styles:  RIC
Warranty:  5 years
Charger: 
Comes with charger

Manufacturer:Phonak
Model:Infinio Sphere i90
Style:Behind the Ear
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765+ Reviews - 4.64 / 5 Average

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What's included in our hearing aid prices?

Full Hearing Test & Examination by a Registered Audiologist
Fitting and Programming of Hearing Aid(s)
All Aftercare and Fine Tuning for Life
Full Manufacturer's Warranty
60 Day Full Money Back Guarantee

Details & Features


Phonak Audeo Infinio Sphere i90 hearing aids overview

The Phonak Audeo Infinio Sphere i90 hearing aids, also known as Audeo i90-Sphere, include clever features like AI technology, an updated chip, and enhanced Bluetooth connectivity.  Infinio Sphere i90 is designed to enhance your communication in even the loudest environments by filtering out background noise and focusing on speech.

Picture this: You're at your grandchild's birthday party, and instead of straining to hear their excited chatter over the background noise of other conversations, music, and laughter, you catch every precious word effortlessly. Or imagine confidently participating in that important work meeting in a busy restaurant, knowing you won't miss crucial details because of clinking dishes and other diners.

Whether you're with friends, family, or colleagues, this advanced technology helps you stay connected and engaged.  The Phonak Audeo Infinio Sphere i90 hearing aids also introduce the world’s first hearing aid with a dedicated AI chip, known as DEEPSONIC, in its sound processing system.

This new technology, the Deep Sound Optimised Neural Integrated Chip, is said to expand the listening range in all directions and deliver premium speech clarity by effectively separating speech from background noise.

What does this mean for your hearing?  While many hearing aids use some form of AI now, previous top models lacked the onboard processing capacity to run real-time artificial intelligence systems.  The Audeo Infinio Sphere i90 filters out unwanted noise to provide clear and precise speech comprehension that arguably surpasses any existing technology. 

For example, imagine being part of a lively family dinner, attending an engaging lecture, or enjoying a conversation with a friend, and being able to understand and engage even amidst the noise. This is made possible with Phonak Audeo Sphere's great speech clarity. 

In fact, Phonak Audeo Infinio Sphere i90 hearing aids are particularly well-suited for those who find social gatherings or public venues overwhelming due to background noise, offering a renewed sense of confidence in everyday communication.

 

AI and DEEPSONIC technology at a glance:

  • 53x more processing power compared to older models
  • 22 million sound samples used for AI training
  • 7,700 million operations per second for fast and accurate sound processing
  • Unprecedented speech clarity in noisy environments from any direction
  • Spheric speech clarity is said to double your chances of hearing and understanding speech 

 

Phonak’s use of a dual-chip architecture means users can benefit from continuous learning and self-optimisation features, keeping their hearing aids performing at their best without needing constant manual adjustments.

Think of it like having a personal sound engineer in your ear who instantly adjusts everything for the perfect listening experience. While your brain used to work overtime trying to filter important sounds from noise, the DEEPSONIC chip does this heavy lifting for you, leaving you free to simply enjoy and engage in conversations.

 

Effortless listening, anytime, anywhere

Staying present and engaged in noisy environments is a lot easier with the Audeo Sphere Infinio i90, as you can enjoy clear speech far beyond the capabilities of existing hearing technology.  The device performs well in complex group conversations by separating unwanted noise from the most important sounds, allowing for total focus and easier listening.

For example, there is 34% less effort when listening to speech from a distance and 45% less effort when listening to speech from an adjacent room.  Whether you're attending a business meeting or catching up with loved ones at your local cafe, Phonak Audeo Infinio Sphere i90 hearing aids support your ability to tune into what matters and reduce fatigue throughout the day.

Real customers tell us they've rediscovered the joy of spontaneous conversations – no more avoiding social gatherings or pretending to hear when they don't. One user shared how they could finally enjoy their book club discussions without constantly asking "what did you say?" Another described confidently ordering at a busy restaurant counter for the first time in years.

 

Universal connectivity features

The Audeo Sphere Infinio i90 offers great connectivity, pairing with more Bluetooth devices than any other hearing aid on the market. Thanks to the ERA chip, provides uninterrupted hands-free calls and streaming, doubling the effective distance.  Other connectivity features include:

  • Connects with up to 8 Bluetooth devices, with 2 devices connected simultaneously
  • Seamlessly shifts between acoustic and streaming modes, so you never miss a word
  • RogerDirect is built in for improved performance in noisy environments and over distance
  • Experience effortless communication and stay connected

 

With Phonak Audeo Infinio Sphere i90 hearing aids, you're not just connected to your devices — you're connected to your world, whether you're watching TV, answering a call, or joining a Zoom meeting. 

 

Technology features

APD 3.0 – This updated fitting prescription uses the latest research and ERA processing speed to deliver the perfect gain at every frequency, tailored to each hearing loss.

AutoSense 6.0 – Powered by AI, AutoSense automatically adjusts the hearing aid’s settings as you move between different environments. It switches to the best programme, adjusts volume, and fine-tunes advanced features for optimal sound quality.

Enhanced Bluetooth – Offers universal connectivity and two-way streaming with any Bluetooth device, including phones, tablets, and laptops. Phonak Infinio hearing aids can pair with up to 8 devices and connect to 2 at once. The new ERA chip boosts Bluetooth power, allowing for a stronger, more reliable signal that is over double the previous range.

Auracast Ready – With Auracast broadcast technology, devices like smartphones, TVs, or public address systems can send audio to an unlimited number of compatible receivers, such as hearing aids, earbuds, or speakers, all at once.  This means the Phonak Audeo Infinio Sphere i90 hearing aids aren’t just future-proofed – they’re ready for the next wave of audio accessibility.

Evening TV watching doesn't require subtitles or volume battles with family members. Even busy supermarket checkout conversations flow naturally.

 

Hearing aid colours, accessories, and charging system

Phonak Audeo Infinio Sphere i90 is a rechargeable and dual-chip model.  You can enhance your Phonak Infinio Sphere experience with a range of compatible accessories and apps (featuring tinnitus masking and health data tracking), including the TV Connector, Phonak PartnerMic, Phonak RemoteControl, the Roger microphone portfolio, and the myPhonak app. 

Phonak Infinio models can be charged using the Phonak ChargerGo RIC Sphere I.  Audeo Infinio Sphere hearing aids are also available in colours:  Sand Beige, Champagne, Silver Grey, chestnut, and Graphite Grey.

What about the Infinio Sphere battery?  Phonak Infinio Sphere i90 is equipped exclusively with rechargeable batteries, offering 24 hours of use after a 3-hour charge (including 80 minutes of streaming), while a 30-minute quick charge provides an additional 6 hours of battery life, using inductive charging with a standard charger.

What about the size of the Infinio Sphere?  This model is larger than the standard Infinio due to its advanced technology, particularly its AI capabilities. While smaller RIC hearing aids are available, they may compromise on features like Bluetooth connectivity, rechargeable batteries, sound quality, and noise reduction.

Ultimately, the choice between size and features depends on your needs and priorities.  You can discuss this with your audiologist during your assessment.

Despite its size, the Phonak Audeo Infinio Sphere i90 hearing aids remain discreet behind the ear, with a sleek design that balances comfort, performance, and wearability.

 

Any improvements since Lumity?

Other than the AI addition, Phonak states that Sphere Infinio has an impressive 10 dB signal-to-noise ratio (SNR) benefit without the need for accessories like remote microphones.

There is also a 45% reduction in listening effort in quiet environments for those with moderate to severe hearing loss. Plus, it reduces fatigue by 21% when the Speech Enhancer is activated, and along with Phonak’s Roger ON remote mic, Infinio is said to improve speech understanding by 61%.

The durability has also been improved, with advanced water-resistance that enhances the hearing aids' resilience to everyday wear and tear. Phonak has incorporated innovations from previous models, like the Phonak Lumity Life, into the Infinio range, ensuring robust and reliable performance.

Is the Infinio Sphere waterproof?  It is important to note that although not designed for lap swimming, Phonak’s tests show these hearing aids can handle occasional water exposure.  

 

Emotional benefits

  • Rediscover confidence in social situations – no more anxiety about missing conversations
  • Enjoy effortless family dinners where you're part of every story and joke
  • Feel present at work meetings instead of mentally exhausted from straining to listen
  • Experience the relief of not having to ask people to repeat themselves constantly
  • Reconnect with activities you may have avoided due to challenging listening environments

 

Why buy?

The Phonak Audeo Infinio Sphere i90 hearing aids offer a solution for effortless communication in noisy environments. With innovative DEEPSONIC AI technology, enjoy premium speech clarity that makes every conversation engaging, whether at a family dinner or a bustling event.  Elevate your experience with:

  • 53x More Processing Power: Effortless listening with less fatigue.
  • Advanced Noise Filtering: Focus on what matters with clear speech.
  • Universal Connectivity: Seamlessly connect to all your favourite devices.

 

Phonak Infinio Sphere i90 is a fully customisable hearing aid designed for mild to severe hearing loss, while those with severe loss may receive a custom earmould to minimise feedback, and those with profound hearing loss might be better suited for Phonak's high-powered Naida Lumity.

The ability to hear clearly amid background noise is one of the most important factors in hearing aid satisfaction. With the advanced two-chip system and Spheric Speech Clarity, distractions fade away while conversations shine through. As a hearing aid wearer, it simply allows you to stay present in important moments more easily.

In short, Phonak Audeo Infinio Sphere i90 hearing aids bring together intelligent technology, thoughtful design, and exceptional sound quality for a truly modern hearing experience.

 

Other performance levels:

The Phonak Audeo Sphere Infinio is available in various technology levels (i90 and i70), each providing distinct features and performance capabilities.  We advise considering the i90 technology level to experience enhanced speech clarity in noisy settings such as pubs, bars, and restaurants.

►Phonak Audeo Infinio Sphere i70 hearing aids

 

What's included in the price of the hearing aids?

  • Full hearing test and examination by a registered audiologist
  • Fitting and programming of hearing aid(s)
  • All aftercare and fine-tuning for life
  • Full manufacturer's warranty
  • 60 day full money back guarantee
  • An "excellent" service voted by our customers on Reviews.io

 

Need more support with Infinio Sphere i90?

Experience breakthrough hearing with the Phonak Sphere i90.  Take control of conversations, even in the noisiest places. With AI-powered clarity and next-gen Bluetooth, the Sphere i90 is built for your lifestyle.

Call us free on 0800 567 7621 to speak with one of our expert audiologists, or book your consultation online today and take the first step toward clearer, more confident hearing here

Please note that there will be an additional surcharge of £125 if we are pairing a single hearing aid with an existing aid bought from another company, where we are taking over the aftercare responsibilities and looking after both hearing aids.

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Written by Kimberley Bradshaw, Head of Online Medical Content

Kimberley Bradshaw started her love of content creation, as a freelancer for many well-established medical brands.  She has written about hearing healthcare for several UK and US online health and wellness publications since.  Connect with Kimberley on LinkedIn.

Tech Rating:
£1995
per aid
£3695
per pair

Fitting Styles:  RIC
Warranty:  5 years
Charger: 
Comes with charger

Phonak Infinio Full Range

Fitting Styles:  RIC
Warranty:  5 years
Charger: 
Comes with charger

Phonak Infinio Full Range
Tech Rating:
£1945
per aid
£3595
per pair

Fitting Styles:  RIC
Warranty:  5 years
Charger: 
Comes with charger

Phonak Infinio Full Range

Fitting Styles:  RIC
Warranty:  5 years
Charger: 
Comes with charger

Phonak Infinio Full Range

Phonak Infinio Sphere Hearing Aids Information

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Watch the Phonak Audeo Infinio Sphere hearing aid video below

Have any questions?

Here, at Hearing Aid UK, we offer a wide range of hearing aids available on the market - keeping up to date with the best and latest hearing aid technology.

We can support your hearing healthcare in clinic or in the comfort of your own home and with nationwide coverage, we will have an audiologist near you.

Whatever your hearing loss level, budget, or style our audiologists can help you find the perfect hearing solution for you.

Call us free for support and advice on 0800 567 7621

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What's included in our hearing aid prices?

Full Hearing Test & Examination by a Registered Audiologist
Fitting and Programming of Hearing Aid(s)
All Aftercare and Fine Tuning for Life
Full Manufacturer's Warranty
60 Day Full Money Back Guarantee

FAQs

What is the best hearing aid model for me?

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.

  • Audiologist's level of knowledge: The audiologist you have seen will hopefully have a wide knowledge of all available hearing aids; however, some will only be familiar with a small number of brands and, therefore, may not really be in a position to know which model is the best for you. It is OK to challenge their recommendation and ask them to justify why this particular brand is the one for you.
  • Do research: Read about the hearing aid that was recommended. Does it seem like it will suit your lifestyle? Does it have more or fewer features than you need? 
  • Be aware of sales targets: Many high street retailers have specific tie-ins to a particular manufacturer/brand. The hearing aid they have suggested may still be the correct one for you, but do your research so that you know why they might have recommended it.
Do I need one hearing aid or two?

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

What are the benefits of rechargeable hearing aids?

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.

Are Behind-the-Ear hearing aids better than In-the-Ear hearing aids?

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.

What are channels, and how many do I need?

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.

What's covered in a manufacturer's warranty?​

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.

How much does the hearing test cost?

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 a 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.

Do you offer home visits, and are they included in the price?

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.

Why are your hearing aids cheaper than what I'd pay on the high street?

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.

How long do I have to try the hearing aids before committing to keep them?

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.

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