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Phonak Infinio Ultra Sphere i70 Hearing Aids

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Price Each: £1945 | Price Pair: £3595

Behind the Ear
Fitting Styles: RIC
Warranty: 5 Years

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£1945 each

£3595 per pair

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0800 567 7721

Phonak Infinio Ultra Sphere i70 Hearing Aids Overview

The Phonak Infinio Ultra Sphere i70 is the advanced-level Receiver-in-Canal (RIC) model in Phonak’s newest Infinio Ultra range — and it brings the same groundbreaking AI technology as the flagship i90, but at a more accessible price point.

Just like the i90, the i70 includes the world’s first dedicated hardware AI chip built purely for separating speech from background noise. The difference?
The i70 runs this AI system at medium strength, offering powerful speech-in-noise support without the premium-level price tag.

If you’re trying to understand the cost difference between the i70 and i90, our team can walk you through a clear, transparent comparison of what each level includes.

Quick highlights

• Suitable for mild to profound hearing loss

• Dedicated AI chip for speech separation (medium strength)

• Spheric Speech Clarity 2.0

• AutoSense OS 7.0

• Universal Bluetooth (iPhone + Android)

• Rechargeable with on-the-go charging

• IP68 water & dust resistance

• EasyGuard dome compatible

• Available in 8 colours: Sand beige, sandalwood, chestnut, champagne, silver grey, graphite grey, velvet black

• Compatible with Roger accessories (Roger On, Select, Table Mic, Clip-On Mic) + myPhonak app

Dedicated AI chip (medium strength)

At the core of the Infinio Ultra Sphere i70 is the same dedicated AI processor found in the i90 — a chip designed solely to extract speech from noise in real time.

The key difference is processing strength.
Where the i90 runs the AI at full power, the i70 runs at medium strength:

• Still excellent for noisy environments

• Still far ahead of traditional hearing aids

• Just slightly less aggressive than the premium i90 tier

For busy restaurants, cafés, family gatherings and open-plan offices, this means noticeably clearer speech and less listening fatigue — without needing to manually switch programs.

If you’re unsure whether medium or full strength is best for you, our audiologists can help you compare both models during a no-obligation hearing consultation.

Spheric Speech Clarity 2.0

Powered by the AI chip, Spheric Speech Clarity 2.0 enhances voices from all directions — not just the front — so you can follow group conversations with ease.

At the i70 level, the system runs at an advanced setting, meaning:

• Strong performance in noise

• Support for multiple talkers

• Less concentration is needed in busy places

It’s ideal for people who want meaningful improvements in noisy environments without paying for the premium-tier processing of the i90.

AutoSense OS 7.0

The i70 includes Phonak’s newest automatic environment-detection system. Trained using advanced AI methods, AutoSense OS 7.0:

• Detects your environment

• Adjusts processing automatically

• Handles transitions smoothly and naturally

Whether you move from quiet to noise, indoors to outdoors, or from a conversation to music, the system adapts without any effort on your part.

APD 3.0 Fitting Formula

Phonak’s latest fitting prescription, APD 3.0, delivers:

• More accurate gain for each frequency

• Faster calculations

• A more natural sound quality overall

It’s a behind-the-scenes improvement that ensures the i70 is precisely tuned for your individual hearing profile.

Universal Bluetooth Connectivity

The i70 supports true universal Bluetooth for:

• iPhone

• Android

• Tablets

• Laptops

You can pair two devices at once, making it easy to switch between your phone and computer.
The extended Bluetooth range offers double the distance of previous Phonak models, reducing dropouts and connection issues.

Two-way streaming means you can use the hearing aids as a hands-free headset — hearing and speaking through them during calls.

Ready for Auracast

The i70 is future-ready with Auracast support, a next-generation broadcast audio system that will let you connect directly to public sound sources such as:

• TVs

• Cinemas

• Transport hubs

• Public venues

It’s not widely available yet, but the i70 is prepared for when it becomes mainstream.

Double-tap controls

You can answer calls, control streaming, or activate features simply by double-tapping the hearing aids. It’s quick, responsive and avoids fumbling for your phone.

EasyGuard Dome Compatibility + IP68 Durability

The i70 is compatible with Phonak’s patented EasyGuard domes, which help reduce wax blockages and simplify day-to-day maintenance.

With an IP68 rating, the i70 is protected against:

• Rain

• Sweat

• Dust

• Accidental splashes

(Like all hearing aids, it’s not designed for swimming.)

Is the i70 right for you?

The Phonak Infinio Ultra Sphere i70 is ideal if you:

• Struggle in noise, but don’t need the full power of the i90

• Want advanced AI technology at a more affordable level

• Attend restaurants, social events or group conversations regularly

• Want strong Bluetooth performance for calls and streaming

• Prefer an advanced balance of performance and value

If you’d like to compare the i70 and i90, you can book a consultation and test both models side by side with no obligation to purchase.

Other performance levels:

►Click here to view Phonak Infinio Ultra Sphere i90 hearing aids

Need more support with Phonak Infinio Ultra i70?

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’s the main difference between the i70 and the i90?

  The i70 uses the same dedicated AI speech-separation chip as the i90, but runs it at medium strength rather than full power.
  You still get excellent speech clarity in noise, but the i90 provides the highest performance available.

• Does the i70 work with both iPhones and Android phones?

  Yes.
  The i70 supports universal Bluetooth, meaning it works seamlessly with iPhone, Android, tablets, laptops and smart devices.
  You can also pair two devices at once, such as your phone and laptop.

• How long does the battery last?

  Battery life varies depending on how much AI processing is active:
  
  Up to 56 hours in low-noise everyday conditions
  
  Around 11 hours when using the full AI processing in challenging environments
  
  The hearing aids adjust automatically based on your surroundings.

• Watch the Phonak Infinio Ultra Sphere Video Below