The Phonak Audéo Sphere™ Infinio represents a major step forward in hearing technology through the use of artificial intelligence. At the core of its design is the world’s first dedicated AI processor in a hearing aid—Phonak’s DEEPSONIC™ DNN chip—working alongside its established ERA processor. This dual-chip architecture enables the device to process sound in real time, referencing over 22 million real-life sound environments to deliver context-aware adjustments.
The result is Spheric Speech Clarity, a feature that improves the signal-to-noise ratio by up to 10 dB, allowing users to hear speech more clearly from any direction, even in complex or noisy settings. This AI-driven capability is especially useful in situations where multiple conversations or background noise would previously make understanding difficult. Phonak’s AutoSense OS™ 6.0 also benefits from AI input, automatically recognising and adapting to seven unique sound environments, such as speech in noise, music, or car travel. AI enhances the OS’s ability to fine-tune settings for speech enhancement and listening comfort, reducing listening effort by up to 45%. Other intelligent features include motion sensors, which detect whether the user is moving or stationary and adapt microphone focus accordingly, and Environmental Balance, which blends environmental sound with streamed audio for a more natural experience. In addition to these AI capabilities, the Sphere offers universal Bluetooth connectivity, supports LE Audio and Auracast, and integrates with the myPhonak app, where users can adjust settings, track usage, and find their devices via GPS. Clinician and user feedback strongly support the AI performance: 100% of professionals rated it as delivering outstanding hearing, with significant reductions in listening effort in real-world tests. In short, the Phonak Audéo Sphere Infinio puts artificial intelligence at the heart of the hearing experience—transforming how users interact with their surroundings by continuously learning, adapting, and improving speech clarity wherever they go. Read more about this hearing aid in our review.
The Phonak Infinio Sphere 90 stands at the top of Phonak’s latest hearing technology. Powered by the new DEEPSONIC chip, it performs up to 7.7 billion operations per second to effectively distinguish speech from background noise. Its "Spheric Speech Clarity" feature improves the signal-to-noise ratio by up to 10 dB and can increase speech understanding by as much as 36.7%. Thanks to AutoSense OS 6.0, the hearing aid automatically adapts to environments such as “speech in loud noise”, “calm situation”, or “music”.
When comparing the Phonak Infinio Sphere 90 vs 70, the 90 model offers superior performance through features like Speech Enhancer, which amplifies weak voices and helps in situations where the speaker is positioned behind or to the side. These features are either absent or only partially available in the Sphere 70 model. In terms of cost, the Phonak Infinio Sphere 90 price in the US ranges from approximately $4,400 to $5,300 per pair, while the 70 version is priced around $3,800 to $4,000.
User feedback for the Phonak Infinio Sphere 90 review is highly positive, highlighting excellent sound clarity, strong Bluetooth connectivity, IP68 water resistance, and rechargeable batteries. However, some note that the devices are slightly bulky and require professional fitting, and the price point may be high for some. Overall, the Phonak Infinio Sphere 90 offers premium performance for those needing the best in speech clarity, particularly in noisy settings, making it a worthy upgrade from the 70 version.
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The Phonak Infinio Sphere price in the UK is around £2,995 per pair for the i90 model, based on current listings. Known as the Phonak Audeo Sphere Infinio price, this leading‑edge hearing aid packs two chips—including the AI‑powered DEEPSONIC processor—for superior speech clarity. It delivers a 10 dB improvement in signal‑to‑noise ratio and significantly reduces listening effort in complex acoustic environments. In contrast, the i70 level offers many core features of the Sphere range but at a lower cost—ranging between £3,695 and £3,995 per pair, slightly below the i90 level. Some independent retailers list the i90 from £1,250 per single aid (around £2,500 per pair), though prices vary depending on promotions and fitting services
Comparison Table: Phonak Infinio Sphere Cost in the UK
Model | Description | Price (UK) |
---|---|---|
Infinio Sphere i90 |
Top‑tier AI chip (DEEPSONIC), best speech clarity |
~£2,995 per pair |
Infinio Sphere i70 |
Mid‑level Sphere tech, good noise management |
From £3,695–3,995 per pair |
Single i90 aid (promo) |
Retail promotion listed from single unit |
From £1,250 each (£2,500 pair) |
Overall, the Phonak Infinio Sphere cost in the UK reflects its premium performance. The i90 level clearly justifies its higher Phonak Infinio Sphere price in noisy settings, offering unmatched speech separation and comfortable listening. For those seeking a balance between cost and cutting‑edge tech, the i70 remains an excellent alternative. Whether you’re searching for the Phonak Audeo Sphere Infinio price or comparing models, current pricing ranges are well supported by verified UK retailers.
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The Phonak Infinio Sphere review underlines a dramatic leap in hearing‑aid technology. According to a detailed UK review, the Sphere incorporates a dedicated AI chip (DEEPSONIC) that delivers exceptional real‑time speech‑in‑noise separation. Tests show up to a 10 dB improvement in signal‑to‑noise ratio and up to 36.7 % enhancement in speech comprehension – factors that audiologists describe as “game‑changing”.
On Reddit (r/HearingAids), users frequently praise its performance. One subscriber called it “life‑changing”, noting:“In a restaurant, I can hear everyone at the table… The difference can’t really be described”. They also highlight impressive battery life, remarking: “I use them 16 hours and will have 50 % including long phone streaming”.
However, some caution is raised about power consumption. A HearingTracker forum thread mentions that the Sphere’s “Sphere mode” may deplete battery faster, particularly with heavy AI processing. A balanced UK clinic review lists five key pros—top‑tier speech processing, adaptive auto‑environment recognition, Bluetooth connectivity, robust build quality, and hands‑free calling—and five cons, including slightly larger casing, lack of disposable battery option, occasional Bluetooth call clarity issues, and no telecoil or CROS compatibility
In summary, Phonak hearing aids reviews consistently place the Sphere Infinio at the forefront of premium devices, particularly for users who struggle in challenging acoustic environments. While not without drawbacks—mostly size and battery‑related—its profound impact on comprehension makes it a convincing choice for those seeking state‑of‑the‑art hearing aid performance.
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The Sphere Infinio line features a groundbreaking dual‑chip design, including a DNN‑based AI processor that offers superior speech clarity and background noise reduction. These devices are rechargeable RIC (Receiver‑In‑Canal) aids with universal Bluetooth connectivity, Auracast and LE Audio readiness, AutoSense OS 6.0, tap controls for calls/streaming, and are water‑resistant
Prices vary by model and source:
Model | Key Features | Price for single aid | Price for pair |
---|---|---|---|
Sphere i90 (premium) |
Dual‑chip AI, top-tier speech-in-noise, tap control, rechargeable, universal Bluetooth |
From £1,845–£1,995 single |
From ~£2,995–£2,350 pair |
Sphere i70 (advanced) |
AI chip, AutoSense OS 6.0, good speech clarity, rechargeable, slightly fewer fine‑tuning channels |
From £1,645–£1,845 single |
From £3,295–£3,695 pair |
Infinio i50 (standard RIC) |
AutoSense OS 6.0, Bluetooth, fewer channels (16), lower-tech option without AI chip |
From £1,445 single |
From £2,895 pair |
Infinio i30 (entry RIC) |
Basic AutoSense OS, minimal channels (12), standard processing |
From £1,345 single |
From £2,595 pair |
Some US-based outlets list USD 1,999 and USD 1,799 for i90/i70 respectively. The Sphere i90 stands out as the flagship, offering the most advanced AI-driven speech clarity with full features. The i70 offers nearly as much value at a lower price, albeit with fewer fine‑tuning channels. The i50 and i30 lack the AI chip but still deliver quality sound and connectivity for less demanding users.
Please note prices may vary depending on retailer, country, warranty and included services.
The Phonak Audéo i90 Sphere is the premium technology level in the Audéo Sphere range, representing the most advanced hearing aid model currently offered by Phonak. It incorporates all available features across speech clarity, connectivity, automation, and personalisation. At the core of the device is the Dual‑Chip Platform, which includes a new DEEPSONIC™ AI processor. This deep neural network (DNN) is trained on over 1 million real-life sound scenes and delivers Spheric Speech Clarity by enhancing speech from every direction, even in complex environments. According to Phonak, users benefit from up to a 10 dB improvement in signal-to-noise ratio in certain conditions. The i90 includes the full feature set of AutoSense OS™ 6.0, which automatically adjusts settings based on the environment. This includes:
The i90 is rechargeable (Lithium-ion), with up to 18 hours of battery life and 15-minute fast charging capabilities. It is IP68-rated (water and dust resistant), and offers Bluetooth 5.3 universal connectivity with Auracast™ support and LE Audio readiness. Compared to other tiers:
With 20 fine-tuning channels, QuickSync, and full health data tracking via the myPhonak app, the i90 Sphere is engineered for users who need top-tier performance in diverse listening situations.
The i90 and i70 are both part of Phonak’s latest Sphere Infinio range, sharing core tech such as dual-chips (including AI DEEPSONIC), AutoSense OS 6.0, full universal connectivity (Bluetooth 5.3, Auracast, LE Audio), rechargeable design, tap controls, motion sensors, and features like StereoZoom 2.0, Dynamic Noise Cancellation, SoundRecover2, UltraZoom, WindBlock, EchoBlock, and more
✅ What sets them apart:
🔍 Quick Features Table
Features | i90 Sphere | i70 Sphere |
---|---|---|
Spheric Speech Clarity |
Full-strength |
Medium-strength |
Speech Enhancer |
✓ Available |
✗ Not included |
Noise‑reduction aggressiveness |
Stronger, more pronounced |
Milder processing |
Manual Sphere Program |
Full control |
Medium-level only |
Other shared features |
AI chip, AutoSense OS 6.0, Bluetooth 5.3, Auracast, tap/motion control, rechargeable, health tracking, RogerDirect compatibility |
Same |
🎯 Key considerations:
📌 Final thought:
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Retailer | What’s Included | Price (UK) |
---|---|---|
Pair i90, hearing test, fitting, 4‑year warranty & aftercare |
From £2,995 |
|
Pair i90, test/appointment, fitting, support services |
From ~£3,995 |
|
HearingNow.co.uk |
Pair i90, charger, domes, wax filters, remote programming, 5‑year warranty, VAT |
Quoted on request |
Audiological Science |
Pair i90 with services |
From ~£3,250 |
Local Independent |
Full service + aftercare |
From £5,500+ |
✅ Tips for Buying
🧭 Final Advice
The Phonak Audéo Infinio Sphere range is Phonak’s latest flagship line of Receiver-in-Canal (RIC) hearing aids, incorporating the most advanced features and AI-driven technologies available. It is built on Phonak’s new dual-chip platform, combining a traditional sound processing chip with a dedicated DEEPSONIC AI processor, which enables real-time adaptation based on over one million acoustic scenarios.
🔧 Core Features & Technologies
Automatically detects and adjusts to the listening environment using motion sensors and acoustic cues. Seamlessly blends features like:
The Infinio Sphere line includes multiple technology levels: i90 (premium), i70 (advanced), i50 (standard), and i30 (basic), with the i90 offering the full feature set listed above. Lower tiers retain many shared technologies but reduce processing strength and personalisation options. In sum, Phonak Audéo Infinio Sphere hearing aids combine AI-enhanced clarity, intelligent automation, and robust wireless features with all-day rechargeable convenience.
The Phonak Infinio Sphere range, including the Sphere 30, 50, 70, and premium Sphere 90 models, is available in a selection of attractive colours. However, due to far greater demand than Phonak originally anticipated, availability has been temporarily limited. To ensure fair distribution across countries, Phonak has restricted the initial launch to just four colours: champagne, silver grey, graphite grey, and sand beige. That said, once supply stabilises—expected in late 2025—Phonak plans to offer customers the option to exchange their Infinio Sphere hearing aid for their preferred colour from the full palette.
The Phonak Infinio platform represents Phonak’s latest Rechargeable RIC (Receiver-in-Canal) range, while the Infinio Sphere is its AI-enhanced premium variant. Launched in August 2024, the Sphere introduced a second, dedicated DEEPSONIC™ AI chip trained on millions of sound scenes—making it the first hearing aid applying real-time neural network processing
⚙️ Core Technologies (Shared by All Infinio Models)
Feature | Infinio Sphere | Standard Infinio |
---|---|---|
AI Chip |
Dual-chip: DeepSonic + ERA for full Spheric Speech Clarity Single ERA chip |
no DeepSonic AI |
Speech Clarity Programme |
Full Spheric Speech Clarity (90) or Medium (70) |
Standard speech processing only |
Size & Battery |
Slightly larger build with bigger battery |
Smaller design, standard battery size |
Battery Life |
Good, but shorter when Spheric mode engages |
Longer due to single-chip platform |
Performance in Noise |
Excellent AI-driven noise suppression |
Solid performance, but less aggressive |
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The Phonak Infinio Sphere and Oticon Intent are two leading premium hearing aid platforms featuring neural network technologies. The Sphere, launched August 2024, uses a dual‑chip design—combining the classic ERA chip with a dedicated DEEPSONIC AI chip, trained on approximately 22 million acoustic samples—offering up to 10 dB SNR gain in noisy situations. In contrast, the Intent, powered by Oticon’s Sirius platform, integrates its neural network with user‑intent sensors, training on about 12 million sound scenes to adapt based on user behaviour and head motion
The Phonak Infinio Sphere, released August 2024, is the first hearing aid to include a dedicated DEEPSONIC AI chip, on top of the standard ERA processor. Trained with over 22 million audio samples, it achieves an impressive 10 dB signal‑to‑noise ratio gain, delivering Spheric Speech Clarity in noisy settings. In contrast, the Lumity uses ERA chip only, advanced AutoSense OS 5.0, and lacks a second AI chip, though still offers solid speech processing and Bluetooth streaming capabilities
Feature | Infinio Sphere | Phonak Bolero (Marvel/BTE) |
---|---|---|
AI Speech Clarity |
Dual‑chip DEEPSONIC AI; superior in noise |
Single‑chip; strong but less aggressive |
Noise Suppression |
Outstanding, praised in real-world use |
Good, but lags behind Sphere under challenging noise |
Form Factor |
Compact RIC; slightly larger body |
Traditional BTE; larger and robust |
Battery Life |
Excellent—up to 32 hours reported |
Comparable or slightly longer |
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Phonak’s Bluetooth-enabled hearing aids—such as Paradise, Lumity, Infinio, and Infinio Sphere—offer universal connectivity via Bluetooth Classic, allowing pairing with up to eight devices and simultaneous connection to two active devices. This ensures seamless streaming of calls, music, TV audio, and navigation instructions across both iOS and Android platforms
The Audéo Infinio Sphere user guide serves as an essential reference, guiding users through all aspects of device handling, daily use, and troubleshooting. It begins with a Quick Guide, showing how to identify left/right aids, insert and remove them, power on/off, use tap control, and straightforward charging instructions.
In summary, the Infinio Sphere user guide is a comprehensive, user-friendly manual. It ensures users can confidently begin using their hearing aids, manage connectivity, maintain their devices, and troubleshoot common issues—all through straightforward, well-illustrated instructions.
Phonak pioneered several milestones: the world’s first BTE model (“Phonette”) in 1970, and the first lithium‑ion rechargeable hearing aid in 2016. Their product lines include:
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In summary, Phonak combines a venerable Swiss heritage with cutting-edge tech across diverse form factors, prioritising adaptive connectivity and holistic user support in its global ecosystem.
The Phonak Infinio range—including Audéo I, Sphere I, CROS I, and Virto I—is engineered for universal Bluetooth connectivity, rechargeable convenience, and seamless app integration via myPhonak
📱 myPhonak App Features
🔗 Connectivity Notes
✅ Conclusion
Phonak offers a broad range of hearing aids at four technology tiers—90, 70, 50, and 30—across several form factors including RIC, BTE, and custom ITE models. Prices vary by model, tier, and provider, reflecting differences in features, warranty, and support. Here are typical UK retail prices per single aid (January–June 2025 figures):
Prices include a five-year warranty, charger, fitting and aftercare in many clinics. Lower-tier models like Bolero M90 fall between £575–£1,395 excluding VAT
Model (single aid) | Tech Tier | Price (UK) | Notes |
---|---|---|---|
Audeo Lumity L90 |
90 |
From £1,995 |
Full premium features, rechargeable via case |
Audeo Lumity L70 |
70 |
From £1,695 |
Slightly fewer channels |
Audeo Lumity L50 |
50 |
From £1,250 |
Mid-tier value |
Audeo Lumity L30 |
30 |
From £995 |
Entry-level for quieter lifestyles |
Infinio Sphere i90 R |
90 |
From £1,995 |
Dual-chip AI; includes charger & 5-year warranty |
Infinio Sphere i70 R |
70 |
From £1,945 |
Almost full Sphere feature set, minus speech enhancer |
Infinio Virto Titanium i90 |
90 (custom ITE) |
From £1,995 |
Premium invisible fit |
Bolero M90 (BTE) |
90 |
From £1,395 |
Reliable BTE option (ex-VAT) |
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