Phonak Sphere Infinio

All-Day Comfort, Personalised

Hearing aids – all-day comfort, personalised clarity

Experience natural sound, clear conversations and effortless comfort with Phonak Audéo Sphere Infinio. Powered by the latest AI technology, Sphere Infinio learns from your surroundings in real time – separating speech from background noise so you can focus on what really matters. Whether you’re chatting one-to-one or surrounded by family and friends, it helps every word come through clearly and naturally.

At Leightons, we’ll personalise your Sphere Infinio hearing aids to your hearing, lifestyle and preferences – all supported by expert aftercare for life.

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What makes Phonak Sphere stand out?

Sphere uses advanced, automatic technology to deliver a dependable, natural and balanced hearing experience.

Spheric Speech Clarity 2.0

Instantly separates speech from background noise, helping you follow multiple voices from any direction — even in busy group conversations.

Personalised sound processing

Advanced AutoSense OS™ technology continuously analyses your surroundings, giving you the clearest, most natural sound in any environment.

Adaptive noise management

Smart noise reduction adapts instantly to your surroundings, helping you focus on conversations without background distractions.

Effortless energy

Proven to reduce listening effort by up to 35 %, so you can stay focused for longer.

Introducing Infinio Ultra Sphere – sharper, smarter, even more personal

Sphere Infinio Ultra combines everything you love about Sphere Infinio with even greater precision, power and performance.

  • Spheric Speech Clarity 2.0 – works in real time to capture conversations from multiple speakers and every angle, even in busy, noisy environments.
  • ERA and DEEPSONIC™ chips – work together to separate speech from background noise, delivering clearer, more natural sound wherever you are.
  • EasyGuard™ domes – Phonak’s patented design helps protect your hearing aids for lasting performance and cleaner sound.
  • Up to 56 hours of battery life* – reliable, all-day power you can depend on.

All existing Phonak Sphere Infinio hearing aids can be upgraded to Ultra through a simple firmware update – just visit your Leightons audiologist, and we’ll take care of the rest.

Why buy Phonak Sphere Infinio with Leightons?

When you choose Leightons, you’re choosing expert care that lasts a lifetime – not just a one-time purchase.  

  • Precise fitting  – we us Real Ear Measurements (REM) for true-to-life sound. 
  • Ongoing adjustments – get complementary check-ups as your needs evolve. 
  • Lifetime aftercare – free cleaning, reprogramming and annual reviews. 
  • Up to 5-year warranty – for complete peace of mind. 
  • Flexible payment – with several options to suit your budget. 
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Everyday benefits you’ll notice

Phonak Audeo Sphere makes great hearing simple, natural and intuitive:

  • Clearer conversations – hear naturally, even in challenging background noise.
  • Reduced listening fatigue – effortless focus leaves you with more energy for the day ahead.
  • Automatic adjustments – no need to change programs manually.
  • All-day comfort – light, discreet design made for long, comfortable wear.
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Stay connected with seamless control

Sphere Infinio keeps you connected to the world around you, simply and intuitively.

Universal Bluetooth® connectivity

Pair with smartphones, tablets, laptops and TVs.

Two devices simultaneously

Move easily between calls, media and music.

Hands-free calling

And streaming let you take calls and enjoy media directly through your hearing aids.

myPhonak app

Personalise your sound, adjust settings and access remote support from your audiologist.

All-day wear and lightweight power

Audeo Sphere blends premium technology with everyday wearability, providing reliable power and style:

Rechargeable power

Enjoy up to 56 hours of battery life on a single charge.

Slim RIC design

Lightweight, comfortable and barely visible.

Choice of colours

Available in seven modern shades, from Champagne to Velvet Black.

How much do Phonak Audeo Sphere hearing aids cost?

Phonak Audeo Sphere sits within our top-tier price categories  – combining cutting-edge technology with exceptional everyday performance. We focus on long-term value and support, so your investment includes:

  • Personalised hearing assessment and fitting 
  • Lifetime aftercare and servicing 
  • Warranty and technical support 
  • Finance options for flexible payments 
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Ready to hear the Leightons difference?
Book your free hearing assessment today or visit your nearest branch to experience our premium care.
Book your FREE hearing test
Find your local branch

Are you looking for an optician or hearing specialist near you? Use our branch finder to locate your nearest Leightons Opticians, with 36 convenient locations across the South of England.

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Our other Phonak hearing aids

Phonak Infinio

  • Rechargeable convenience with all-day battery life and quick, hassle-free charging for everyday ease.
  • Easy to use with simple overnight charging that provides a full day of reliable performance.
  • Universal Bluetooth® connectivity that pairs seamlessly with iPhone®, Android™, TVs, other Bluetooth® devices for effortless streaming of calls, music, media.

Find out more
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Phonak Virto Infinio

  • Custom-made in-the-ear design for a discreet, secure fit and natural appearance.
  • Powered by the Infinio™ platform that delivers natural sound and precise speech understanding across different listening environments.
  • Wireless Bluetooth® connectivity for seamless access to smartphones, music, TV audio.

Find out more

Phonak Lumity

  • Designed for moderate-to-profound hearing loss with powerful amplification and crystal-clear sound.
  • SmartSpeech™ technology automatically focuses on speech to enhance clarity and reduce listening effort in background noise.
  • Versatile connectivity with Bluetooth® streaming and Roger™ compatibility for great performance in meetings, lectures, or social gatherings.

Find out more
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Frequently asked questions

Sphere Infinio shares the same advanced platform as Infinio but focuses on exceptional comfort and effortless hearing, with enhanced AI-driven speech clarity.

Infinio Ultra boosts precision, clarity and connectivity – with upgrades to AutoSense OS 7.0, Spheric Speech Clarity 2.0 and faster pairing.

Yes. It offers long-lasting lithium-ion power for up to 56 hours of use.

Yes. Universal Bluetooth® connectivity lets you stream calls and media from most modern devices.