Phonak Infinio Ultra Sphere i70 hearing aids overview
The Phonak Infinio Ultra Sphere i70 is the advanced-level Receiver-in-Canal (RIC) model from Phonak’s Infinio Ultra range. It introduces genuinely new hearing aid technology with a dedicated AI chip that separates speech from noise in real time.
This is the first hearing aid to feature dedicated hardware specifically for tackling the challenge of hearing in noisy environments. At the i70 level, you’re getting this innovative technology at a more accessible price point.
Wondering about the price difference? Speak to our team for a transparent breakdown of i70 vs i90 costs and features.
Quick Highlights
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For mild to profound hearing loss
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Spheric Speech Clarity 2.0
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AutoSenseOS 7.0
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EasyGuard compatible
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Dedicated AI chip for any direction
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Rechargeable on the go
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Universal connectivity
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Available colours: Sand beige, Sandalwood, Chestnut, Champagne, Silver Grey, Graphite Grey, Velvet Black
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Compatible accessories: Roger On, Roger Select, Roger Table Mic, Roger Clip-On Mic, and the myPhonak app
The Dedicated AI Chip Running at Medium Strength
The headline feature is a dedicated AI processor that separates speech from background noise in real time. Unlike software-only solutions, this is actual hardware dedicated entirely to extracting speech from noise.
The i70 runs the AI chip at medium strength, providing real AI capability and tangible benefits in noisy environments—though not at the full power of the i90.
Practically, this means you can navigate busy restaurants, family gatherings, or meetings with multiple participants with significantly less mental effort. The AI works from all directions, allowing you to follow conversations even when people are beside or behind you.
If you’re unsure whether medium strength is enough for your listening environments, our audiologists can help assess your needs during a no-obligation consultation.
Spheric Speech Clarity 2.0: Advanced-Level Processing
Spheric Speech Clarity 2.0 extracts and enhances speech from multiple speakers simultaneously, regardless of their position around you. At medium strength, the i70 provides meaningful speech enhancement in challenging environments.
The practical benefit is reduced mental fatigue and a better understanding in noisy settings. If you often find yourself nodding along in restaurants, the i70 is designed to make those moments much less frequent.
AutoSense 7.0
The i70 uses Phonak’s seventh-generation AutoSense technology, trained with AI to recognise different listening environments and adjust automatically.
From a quiet home to a busy street or restaurant, the hearing aids detect environmental changes and optimise processing without manual intervention. AutoSense 7.0 has been refined over multiple generations, typically outperforming competitors’ systems in seamless adaptation.
APD 3.0 Fitting
The i70 includes Phonak’s APD 3.0 fitting prescription, using enhanced processing speed to deliver more accurate gain at each frequency of your hearing loss.
This ensures precise programming tailored to your specific hearing profile. While largely a behind-the-scenes improvement, it contributes to more natural sound and overall listening comfort.
Universal Bluetooth Connectivity
The i70 supports universal Bluetooth connectivity with iPhones, Androids, laptops, and tablets. You can pair two devices simultaneously, keeping your phone and laptop connected at the same time.
Enhanced Bluetooth range provides double the transmission distance of previous Phonak models. Two-way streaming allows you to both hear and speak during calls reliably—a feature you’ll actually want to use.
Future-Proof with Auracast
The i70 is ready for emerging Auracast broadcast technology, allowing connection to public sound systems like TVs, cinemas, or announcement systems. This is not yet widely used but promises significant convenience once adopted.
Double-Tap Controls
Answer phone calls or control audio streaming directly on the hearing aids by double-tapping. This intuitive feature reduces the need to fumble for your phone during calls.
EasyGuard Dome Protection and Quality
The i70 is compatible with Phonak’s EasyGuard dome, preventing wax buildup and reducing maintenance. These hearing aids are rated IP68 for water and dust resistance—the highest rating available.
While not suitable for swimming, they can handle rain, splashes, and dusty environments without complaint.
Battery Life: 11–56 Hours, Depending on Usage
Battery life depends on AI processing use:
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Up to 56 hours in standard use (mild hearing loss, no streaming)
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Around 11 hours using full AI mode
The hearing aids automatically manage power based on your environment, so you don’t need to manually switch modes.
Who Should Consider the i70?
The i70 is ideal for people seeking the benefits of AI-powered speech separation on a moderate budget.
If you frequently attend restaurants, cafés, or social gatherings but find them exhausting due to hearing difficulties, the i70 can make a real difference.
It’s also perfect for those who value reliable connectivity for phone calls and media streaming without technical frustrations.
Unsure if i70 is right for you? Book a consultation to try both i70 and i90—no obligation.
Researching for a Loved One?
Many people research hearing aids for family members or partners. You can attend consultations with them to help understand the technology and ensure it suits their hearing loss and lifestyle.
Audiologists provide professional guidance without obligation and help families make informed choices.
Conclusion
The Phonak Infinio Ultra Sphere i70 brings dedicated AI technology to an advanced-level hearing aid. The AI chip runs at medium strength, offering meaningful improvements in noisy environments while balancing performance and affordability.
This model represents a significant step beyond traditional hearing aids and is available through qualified hearing care professionals who ensure proper fitting and programming.
Need more support with Phonak Infinio Ultra Sphere i70 hearing aids?
Choosing a hearing aid is a big decision, and you shouldn’t have to make it alone. Our independent audiologists are here to help you find the right solution for your hearing, your lifestyle, and your budget. Book your free appointment today and get:
- A full hearing test carried out by a registered audiologist
- Personalised fitting and programming tailored to your hearing profile
- Unlimited fine-tuning and aftercare, for life
- A 60-day money-back guarantee if it’s not right for you
- Access to free home visits and clinic appointments across the UK
With over 30,000 satisfied customers and 200+ audiologists nationwide in 90+ clinics, we’re here to support you every step of the way. Call us free on 0808 208 5156, or fill out our questionnaire at the bottom of this page, or click below to fill out a contact form here