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Phonak Infinio Ultra Sphere i90 Hearing Aids

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Price Each: £1995 | Price Pair: £3695

Behind the Ear
Fitting Styles: RIC
Warranty: 5 Years

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£1995 each

£3695 per pair

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0800 567 7721

Phonak Infinio Ultra Sphere i90 Hearing Aids Overview

The Phonak Infinio Ultra Sphere i90 is the flagship Receiver-in-Canal (RIC) model in Phonak’s newest Infinio Ultra lineup — and it’s creating a lot of buzz in the hearing care world, for very good reason.

It’s the first hearing aid ever built with a dedicated AI processor solely for separating speech from background noise. Instead of relying on software tweaks or enhanced microphone directionality, this hardware-level AI fundamentally changes how the hearing aid handles busy, challenging listening situations.

Quick highlights

• Suitable for mild to profound hearing loss

• Dedicated AI chip for speech separation

• Spheric Speech Clarity 2.0 system

• AutoSense OS 7.0 automatic environment detection

• Up to 56 hours battery life (or around 11 hours in full AI mode)

• Universal Bluetooth (iPhone + Android)

• IP68 dust and water resistance

• Rechargeable with on-the-go charging

• Compatible with EasyGuard domes

• Available in 7 colours: Sand beige, sandalwood, chestnut, champagne, silver grey, graphite grey & velvet black

• Works with Roger accessories: Roger On, Roger Select, Roger Table Mic, Roger Clip-On Mic and myPhonak app

Dedicated AI chip for speech separation

At the heart of the Infinio Ultra Sphere i90 is a specialised AI processor whose only job is separating speech from noise — in real time.

This isn’t software. This isn’t repurposed processing power. This is a standalone chip designed from the ground up to pull speech out of chaos.

Phonak’s testing suggests that wearers are three times more likely to catch every word in noisy situations compared to wearing hearing aids without this technology. For anyone who’s struggled in restaurants, pubs or crowded events, that’s a genuinely life-altering improvement.

Spheric Speech Clarity 2.0

Powered by the AI chip, Spheric Speech Clarity 2.0 enhances speech not just from the front, but from every direction — even from multiple talkers at once.

Traditional directional microphones narrow in on what’s ahead of you. This system listens in 360 degrees, extracting speech from wherever conversation is happening.

Phonak reports a 10.2 dB improvement in signal-to-noise ratio — a very large jump in hearing aid terms.

Real-world benefits in noise

What this means in practice: conversations in restaurants, family gatherings, meetings and social environments become dramatically easier.

Phonak’s real-world data suggests up to 35% better speech understanding in noise compared to other leading premium devices.

No more nodding politely because it’s too exhausting to follow the conversation — that’s exactly the scenario this device is designed to eliminate.

Dual processing modes

You can choose how much AI processing the hearing aid uses:

• Full Spheric AI Mode → Maximum clarity, approx. 11 hours battery

• Adaptive mode → Automatically reduces AI processing in quiet settings, extending battery up to 56 hours

The system balances clarity and battery life intelligently, depending on your environment.

AutoSense OS 7.0

The Sphere i90 uses Phonak’s seventh-generation AutoSense operating system. Trained using AI, it recognises sound environments and automatically adjusts how the hearing aid processes sound.

AutoSense has been refined for years, and it typically performs smoother and more naturally than the adaptive systems found in many other brands.

Technology levels

The Infinio Ultra Sphere is available in:

• i90 – full AI capability and all advanced features

• i70 – a reduced feature set at a lower price

If you regularly struggle in noisy environments, the i90 is strongly recommended, as the i70 won’t deliver the full potential of the AI processor.

Both versions are IP68-rated, meaning they resist dust, sweat, rain and splashes.

Key takeaways

• First hearing aid with a dedicated AI chip purely for speech separation

• Up to 3× better speech understanding in noise

• Works in 360 degrees, not just the front

• Battery life: 11 to 56 hours depending on AI usage

• Strong, reliable Bluetooth for iPhone and Android

• Two tech levels (i90 and i70) — the i90 is best for noisy environments

• IP68 durability and EasyGuard compatibility

• Ideal for people who consistently struggle with speech-in-noise

Conclusion

The Phonak Infinio Ultra Sphere i90 marks a major shift in how hearing aids tackle noisy environments. The dedicated AI processor isn’t a gimmick — it’s a real engineering advancement that delivers measurable, meaningful improvement.

It’s undeniably a premium product, but for anyone whose life involves noisy social settings or challenging listening situations, the improvement in communication and quality of life could be remarkable.

Other performance levels:

►Click here to view Phonak Infinio Ultra Sphere i70 hearing aids

Need more support with Phonak Infinio Ultra i90?

Not sure if this is the right hearing aid for you?  We’re here to help – with honest advice, personalised recommendations, and no pressure.  Plus, we offer free home visits with no extra cost, so you can get expert support in the comfort of your own home.

For friendly, knowledgeable advice, just call us free on 0800 567 7721.  Alternatively, you can fill in the form at the bottom of the page to request a callback with one of our experts or click on one of the buttons below to book a free appointment or home visit with a local audiologist today.  Let’s find the right hearing solution – together.

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Author: Naomi Livermore

FAQs

• What levels of hearing loss does it support?

  The Sphere i90 is suitable for mild, moderate, severe and profound hearing losses. Your audiologist will determine which receiver strength is needed.

• Does it automatically adjust to different environments?

  Yes. It uses AutoSense OS 7.0, which continuously scans your surroundings and adjusts settings automatically as you move between quiet, noisy, music or outdoor environments.

• Is the Sphere i90 worth the price?

  If you regularly struggle in noisy environments, the Sphere i90 offers one of the biggest real-world improvements currently available. The dedicated AI chip gives performance that traditional hearing aids simply can’t match — so for many people, the improvement is absolutely worth it.

• Watch the Phonak Infinio Ultra Sphere Video Below