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Phonak Infinio Ultra Hearing Aids Reviews, Styles, Features & Benefits

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Updated 05/05/2026
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Phonak Infinio Ultra


  • Dedicated AI chip for speech separation
  • Universal connectivity that actually works
  • Battery life with Swiss reliability
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Phonak Infinio Ultra Hearing Aid Range

The Phonak Infinio Ultra Hearing Aid Range

Including Infinio Ultra R and Ultra Sphere

Last Hearing Aid UK Update:  05

Phonak's Infinio Ultra hearing aid range consists of two models: the Infinio Ultra R and the Infinio Ultra Sphere, one of which represents a genuine leap forward in hearing aid technology.

The Infinio Ultra R represents thoughtful refinement rather than reinvention.

The 24% more precise AutoSense OS 7.0, enhanced Bluetooth capabilities, and new EasyGuard domes all deliver tangible improvements.

But this is essentially sophisticated software running on proven hardware.

The Infinio Ultra Sphere is a different proposition entirely. The DEEPSONIC chip is dedicated processing hardware specifically engineered for speech separation.

This simply didn't exist in previous Phonak models.

The Spheric Speech Clarity 2.0 technology tackles multi-directional speech understanding in ways previous generations couldn't achieve, regardless of how clever their programming was.

Phonak Infinio Ultra hearing aid AutoSense OS 7.0

Quick Shared Feature Highlights

AutoSense OS 7.0:  The foundation

Both models in the Infinio Ultra range are built on AutoSense OS 7.0, which is 24% more precise than the previous generation when adapting to different listening situations.

This is the intelligent system that automatically recognises what environment you're in.

Whether that's a quiet conversation at home, a bustling restaurant, or outdoors in wind and traffic, and adjusts accordingly without you needing to fiddle with any settings.

It's the sort of technology that should be standard everywhere, but frankly isn't, so it's rather refreshing to see it done properly.

Phonak Infinio Ultra hearing aid connectivity and app

Universal connectivity

Both Infinio Ultra models feature what Phonak calls "universal connectivity", and for once, the marketing claim matches reality.

These hearing aids use the latest Bluetooth technology to connect with up to eight devices, with two able to be connected simultaneously.

The connection is stable enough that you'll actually want to use it for phone calls, music, and streaming rather than avoiding it because it's temperamental.

The pairing process is genuinely simple - a one-step connection to smartphones, tablets, and the myPhonak app.

You can switch between different audio sources without the usual faff, and the streaming distance is double what previous Phonak generations offered.

If you've been frustrated by hearing aids that theoretically have Bluetooth but practically make you want to give up wearing them, this will come as welcome relief.

Phonak Infinio Ultra hearing aids in the uk

Phonak Infinio Ultra Hearing Aids

Additional shared features across both models

 

EasyGuard domes:  Less maintenance, better reliability

Here's a feature that might not sound exciting but makes a real difference to daily life: EasyGuard domes. These are specially designed dome tips with a sealed membrane that stops earwax from getting into the receiver.

Anyone who's worn hearing aids knows that wax management is one of those annoying maintenance tasks that interrupts your day and can affect sound quality.

The EasyGuard system means fewer filter changes, easier cleaning, and generally less hassle. It's the sort of practical innovation that shows Phonak actually listens to what users find frustrating.

Phonak Infinio Ultra hearing aids EasyGuard 

Swiss engineering for real life

Phonak makes quite a thing about their Swiss engineering heritage, but in this case, it's not just marketing fluff. The Infinio Ultra aids have undergone over 10,000 hours of testing across 135 individual stress tests.

 

Durability and water resistance you can trust

They're rated for excellent water and dust resistance, which means you can wear them confidently in the rain or during exercise without constantly worrying about damaging them.

 

All-day battery life on both models

Battery life is genuinely impressive - up to 31 hours on the Infinio Ultra R (though real-world figures will vary depending on streaming usage and hearing loss level), which means a full day's use even with heavy streaming. The Infinio Ultra Sphere takes this even further, with up to 56 hours, which is frankly remarkable for hearing aids that are this sophisticated.

Both models are available through our qualified hearing care professionals who can assess your specific hearing needs and help determine which model best suits your lifestyle and listening requirements.

Proper fitting and programming by a professional is essential to getting the full benefit of either device's technology.  Let's take a look at each model...

Phonak Infinio Ultra R hearing aids

Phonak Infinio Ultra R

Smart adaptation for every situation

Compatible with CROS systems, the Infinio Ultra R hearing aids are the foundation model of the range, representing a refined evolution of Phonak's proven hearing aid technology.

It's important to be clear here - this isn't a revolutionary redesign, but rather a thoughtful improvement on what came before, and there's genuine value in that approach.

Available in performance levels:  90, 70, 50, and 30.

Available in colours:  Sand beige, sandalwood, chestnut, champagne, silver grey, graphite grey, and velvet black.

Compatible accessories:  Roger On, Roger Select, Roger Table Mic, Roger Clip-On Mic and the myPhonak app.

Phonak Infinio Ultra R Hearing Aid Charger

Refined rather than reinvented

The Infinio Ultra R builds on the solid foundation of previous Phonak models with software improvements that make a real difference to daily use.

The AutoSense OS 7.0 is 24% more precise than the previous generation.

Bluetooth connectivity has been improved with better streaming distance and more reliable pairing.

The addition of EasyGuard domes also addresses a practical frustration that's plagued hearing aid users for years.

These aren't headline changes, but they're the sort of incremental improvements that actually matter when you're wearing hearing aids every day.

Better automatic adaptation means less manual adjustment. More reliable Bluetooth means you'll actually use the connectivity features. Easier maintenance means fewer interruptions to your day.

Phonak Infinio Ultra R hearing aids

AI-Trained Sound Classification

Better understand the context

The Infinio Ultra R uses an AI-trained sound classification system that's been taught to recognise different types of environments and sounds.

Whether you're listening to jazz, classical music, or having a conversation in a busy café, the aids identify the situation and optimise accordingly.

This isn't just about recognising "noise" versus "speech" - it's about understanding the context of what you're hearing and responding appropriately.

The result is speech understanding that's genuinely improved in noisy situations, without that artificial, over-processed sound quality that some hearing aids produce when they try too hard to eliminate background noise.

Phonak Ultra hearing aids UK

Phonak Infinio Ultra R Hearing Aids

Automated sound processing features and assistive devices

 

Fully automated sound processing

The Infinio Ultra R handles the complex stuff automatically, which means less time adjusting settings and more time actually living your life. The AutoSense OS 7.0 continuously monitors your environment and makes adjustments in real-time.

It's precise enough to make meaningful improvements but subtle enough that you're not constantly aware of the aids changing settings - which is exactly how it should work.

 

Roger technology integration

Like the Ultra Sphere, the Infinio Ultra R works seamlessly with Roger wireless microphones via RogerDirect technology. For anyone who regularly finds themselves in challenging listening environments, Roger microphones can transmit speech directly to your hearing aids from up to 25 meters away. It's an additional investment, but for the right situations, it can be transformative.

Phonak Infinio Ultra Hearing Aids Roger Accessories 

Who should consider the Infinio Ultra R?

The Infinio Ultra R is ideal for people who want premium hearing aid technology with excellent sound quality and reliable connectivity, but don't necessarily need the absolute cutting-edge speech separation technology of the Sphere model.

If you lead an active life with varied listening situations but aren't regularly in extremely noisy environments with multiple competing voices, the Infinio Ultra R offers outstanding performance.

It's also worth considering if you're currently wearing older Phonak models and want the benefits of improved connectivity and easier maintenance without paying for hardware innovations you might not need.

The improvements are worthwhile, particularly the Bluetooth upgrades and EasyGuard system, even if they're evolutionary rather than revolutionary.

Tech Rating:
£1895
per aid
£3495
per pair

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

Phonak Infinio Ultra Full Range

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

Phonak Infinio Ultra Full Range
Tech Rating:
£1695
per aid
£3095
per pair

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

Phonak Infinio Ultra Full Range

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

Phonak Infinio Ultra Full Range
Tech Rating:
£1495
per aid
£2795
per pair

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

Phonak Infinio Ultra Full Range

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

Phonak Infinio Ultra Full Range
Tech Rating:
£1295
per aid
£2395
per pair

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

Phonak Infinio Ultra Full Range

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

Phonak Infinio Ultra Full Range
Phonak Infinio Ultra Sphere hearing aids

Phonak Infinio Ultra Sphere

The speech clarity champion

The Infinio Ultra Sphere is where Phonak has thrown everything at solving one specific problem: understanding speech in noise when voices are coming from multiple directions.

And honestly, they've succeeded rather brilliantly. Unlike its sibling model, this isn't just a software update - it's a fundamentally different piece of hardware.

Available in performance levels:  90 and 70 only.

Available in colours:  Sand beige, sandalwood, chestnut, champagne, silver grey, graphite grey, and velvet black.

Compatible accessories:  Roger On, Roger Select, Roger Table Mic, Roger Clip-On Mic and the myPhonak app.

Phonak Infinio Ultra Hearing Aids DEEPSONIC Chip

The DEEPSONIC Chip

A genuine hardware innovation

Here's the headline feature and the crucial difference: the Infinio Ultra Sphere contains the world's first dedicated AI chip designed specifically for separating speech from noise in all directions.

Phonak calls this chip DEEPSONIC, and it's not just marketing hyperbole - this is genuinely new hardware that wasn't in previous Phonak models.

This is what separates the Sphere from being merely an incremental update.

Whilst the Infinio Ultra R represents refined software running on familiar hardware, the Sphere has actual new processing capability that enables it to do things previous hearing aids simply couldn't manage.

It's the difference between making your existing car run more smoothly and installing an entirely new engine.

Phonak Infinio Ultra Sphere hearing aids model

Reduced Listening Effort

The real benefit

Here's something most hearing aid companies don't talk about enough: listening effort. When you have hearing loss and you're straining to understand speech in noise, it's genuinely exhausting.

By the end of a social event or busy day at work, you're mentally drained from the constant concentration required to follow conversations.

The Infinio Ultra Sphere reduces listening effort by up to 35% compared to Phonak's previous directional technology. This isn't just about understanding more words.

It's about having energy left at the end of the day because your brain hasn't been working overtime to process difficult listening situations.

Phonak Infinio Sphere

Phonak Infinio Ultra Sphere Hearing Aids

The DEEPSONIC Chip: Dedicated AI for Speech Processing

 

56-hour battery life that keeps up with you

Despite housing a dedicated AI chip and doing considerably more processing than most hearing aids, the Infinio Ultra Sphere manages up to 56 hours of battery life — though actual runtime will vary depending on streaming usage and listening environment. This is genuinely impressive - you can wear these aids all day, stream music and calls, and still have power to spare.

For people with busy lifestyles who can't afford to worry about their hearing aids running flat halfway through the day, this makes a real difference.

 

30% more efficient processing

The DEEPSONIC chip delivers this advanced speech processing whilst being 30% more efficient than the original Infinio Sphere, thanks to a retrained deep neural network running on 18 times more real-world sound data. This efficiency is what enables the impressive battery life despite the sophisticated AI processing happening constantly in the background.

 

Spheric Speech Clarity 2.0: Understanding speech from every direction

Spheric Speech Clarity 2.0 doesn't just reduce background noise - it actually extracts, enhances, and integrates speech from unlimited voices in real-time, regardless of where those voices are coming from.  You're three times more likely to understand every word from any direction compared to previous technology.

What this means in practice is that you can follow conversations in group settings without needing to constantly turn your head to face whoever's speaking. Someone asks a question from behind you?

You'll hear it clearly. Multiple people talking around a dinner table? The aids can handle it without turning everyone into incomprehensible mush.

The system is clever enough to let you choose which speaker to focus on, even in very noisy situations with lots of competing voices. This might sound like a small thing until you've experienced the frustration of trying to follow a conversation at a family gathering or business meeting where multiple people are speaking.

Traditional hearing aids, even very good ones, tend to focus on speech coming from in front of you. This works well for one-to-one conversations but falls apart in dynamic situations with multiple speakers.

The DEEPSONIC chip and Spheric Speech Clarity 2.0 change this completely - not through clever software tricks, but through dedicated hardware designed specifically for this challenge.

 Phonak Infinio Ultra Sphere Hearing Aids Deepsonic Processing Chip

Who should consider the Infinio Ultra Sphere?

The Infinio Ultra Sphere is ideal for people who regularly find themselves in challenging listening environments with multiple speakers and significant background noise.

If you frequently attend social gatherings, work in noisy environments, enjoy restaurants and cafés, or generally find yourself in dynamic situations where speech is coming from multiple directions, the Sphere's dedicated hardware and processing capabilities could genuinely change your experience of hearing.

It's a premium product with premium pricing - the dedicated AI chip and Spheric Speech Clarity 2.0 technology don't come cheap - but this is actual new hardware innovation rather than just software refinement.

For people who've been frustrated by hearing aids that work acceptably in quiet one-to-one conversations but struggle in the real-world situations where you actually need help, the Sphere addresses this problem with technology that previous models simply didn't have the hardware to deliver.

 

Infinio Ultra R or Ultra Sphere?

Choose the Infinio Ultra R if you want premium hearing aid technology with excellent sound quality and adaptation across varied environments, but don't regularly find yourself in extremely challenging multi-speaker situations.

It offers outstanding value within the premium category and delivers meaningful improvements over previous generations without requiring you to pay for hardware innovations you might not need.

Choose the Infinio Ultra Sphere if speech understanding in noisy, multi-speaker environments is a significant challenge in your daily life, and you want technology that can do things previous hearing aids genuinely couldn't.

The dedicated AI chip and Spheric Speech Clarity 2.0 specifically address this problem with new hardware capability, and if this is where you struggle most, the additional investment represents actual innovation rather than just incremental improvement.

Range Technology & Specification Comparison

Infinio Ultra 90
Infinio Ultra 70
Ultra Sphere 90
Ultra Sphere 70
Speech in Loud Noise
Yes
No
Yes
Yes
Music
Yes
Yes
Yes
Yes
Speech in Car
Yes
Yes
Yes
Yes
Comfort in Noise
Yes
Yes
Yes
Yes
Speech in Noise
Yes
Yes
Yes
Yes
Calm Situation
Yes
Yes
Yes
Yes
Streaming speech
Yes
Yes
Yes
Yes
Streaming music
Yes
Yes
Yes
Yes
SpeechSensor
Yes
Yes
Yes
Yes
Speech Enhancer
Yes
Yes
Yes
Yes
StereoZoom 2.0
Yes
Yes
Yes
Yes
Dynamic Noise Cancellation
Yes
Yes
Yes
Yes
Motion Sensor Hearing
Yes
Yes
Yes
Yes
Tap control
Yes
Yes
Yes
Yes
Spheric Speech in Loud Noise
No
No
Yes
Yes
Spheric Speech Clarity 2.0
full strength
medium strength

Phonak Infinio Ultra UK

Phonak Infinio Ultra Hearing Aids

Key takeaways

 

 

Conclusion

The Phonak Infinio Ultra range represents a clever approach to premium hearing aids. Rather than forcing everyone to pay for cutting-edge technology they might not need, Phonak offers two distinct paths: the Ultra R for excellent all-round performance, and the Ultra Sphere for those who genuinely struggle with multi-speaker environments.

The DEEPSONIC chip in the Sphere model isn't just a software update - it's actual new hardware that can do things previous hearing aids simply couldn't manage.

Whether you opt for the R or the Sphere, you're getting Swiss engineering, impressive battery life, and those wonderfully practical EasyGuard domes that solve one of hearing aid users' most annoying daily frustrations.

The key is being honest about where you actually need help - if speech in noise is your main challenge, the Sphere's dedicated hardware might well be worth the investment. If not, the Ultra R offers premium performance without paying for innovations you won't use.

Watch the Phonak Infinio Ultra hearing aid video below

Need more support?

Ready to experience the Phonak Infinio Ultra difference?

Hearing Aid UK is an authorised Phonak retailer. All our qualified hearing care professionals are HCPC registered and can assess your specific hearing needs and help determine whether the Ultra R or Ultra Sphere is right for your lifestyle.

Proper fitting and programming make all the difference in getting the full benefit of these sophisticated hearing aids. Book your consultation today to discover which Infinio Ultra model could transform your hearing experience.

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Written by Kimberley Bradshaw

Meet Kimberley Bradshaw, Head of Online Medical Content

Kimberley Bradshaw is Head of Online Medical Content at Hearing Aid UK, with six years of experience writing about hearing healthcare for UK and US health and wellness publications. Her focus has always been the same: making complex topics feel clear, human, and easy to understand.

✔️ Head of Online Medical Content, Hearing Aid UK

✔️ Medical Content Writer — UK & US publications

✔️ 6 years experience writing in the audiology space

✔️ Member of Tinnitus UK

Audiologically reviewed by Paul Harrison

Meet Paul Harrison, Audiology Expert

Paul Harrison is an audiology expert at Hearing Aid UK, with over 20 years of experience helping people understand their hearing health and find the right solutions for their needs. He is committed to making audiological advice accessible, honest, and straightforward for everyone.

✔️  Council Member, BSHAA — 2015–2020

✔️  Audiology Expert, Hearing Aid UK

✔️ 20 years of audiology experience

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Discover the Phonak Infinio Ultra Hearing Aids

FAQs for Phonak Infinio Ultra hearing aids

Is the Phonak Infinio Ultra Sphere worth the extra cost over the Ultra R?

It depends on where you struggle most. If multi-speaker environments — dinner tables, business meetings, busy restaurants — are a genuine daily frustration, the Sphere's DEEPSONIC chip addresses that problem with dedicated hardware the Ultra R simply doesn't have. It can separate and enhance voices arriving from multiple directions simultaneously, which is where most hearing aid wearers hit a wall.

If your listening tends to be quieter and more one-to-one, the Ultra R is genuinely excellent, and you'd be paying for hardware you're unlikely to fully use. Our audiologists will always tell you which one actually fits your life — not just your audiogram.

What types of hearing loss are the Phonak Infinio Ultra aids suitable for?

Both models are RIC (receiver-in-canal) aids, suited to mild through to severe hearing loss — which covers the majority of people seeking private hearing aids in the UK. The open RIC design also tends to sound more natural than fully in-ear styles, avoiding that closed-off sensation some wearers find uncomfortable.

For single-sided or significantly asymmetric hearing loss, the Ultra R also supports CROS systems. That said, the right fit always depends on the shape and degree of your specific hearing loss, which is why our audiologists carry out a full diagnostic assessment — free of charge, in clinic or at home — before making any recommendation.

How does the Infinio Ultra compare to previous Phonak models like Lumity and Paradise?

The Ultra R is a genuine evolution of the AutoSense platform — smarter environment recognition, significantly better Bluetooth, and the practical addition of EasyGuard domes. For existing Phonak wearers, the connectivity improvements alone tend to make a noticeable difference to daily use.

The Sphere is a bigger departure. The DEEPSONIC chip is new hardware, not a software update, and it enables multi-directional speech separation that wasn't achievable in either the Lumity or Paradise ranges at any technology level. If you're currently on one of those models and still finding group listening exhausting, that's the conversation worth having with one of our team.

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