Phonak Audéo Sphere Infinio (Ultra)
Background
Phonak is widely regarded as the market leader by volume, producing more hearing aids each year than any other manufacturer. The Swiss-based brand brings more than 75 years of experience and is known for delivering industry-leading technology trusted by both audiologists and consumers. Phonak Audéo Sphere Infinio (Ultra) continues that tradition.
Like most major manufacturers, Phonak refreshes its flagship platform every few years. The latest release, Audéo Sphere, introduces a powerful second chip in each hearing aid dedicated to AI-driven sound processing. Based on our studio testing and customer feedback, this technology is especially impressive in challenging, high-noise environments.
Early feedback surfaced some concerns around battery life and sound quality in the toughest noise conditions. In response, Phonak released a 2025 firmware update that extended battery life to an impressive 56 hours per charge. Existing users can visit their local clinic for the update, while new users receive the updated “Ultra” technology during setup.
What's New
Phonak Sphere Infinio comes with several upgrades to sound quality, connection and underlying technology.
Dual-Chip Architecture
The Audéo Sphere Infinio features a first-to-market dual-chip architecture that includes the ERA and DEEPSONIC chips. This configuration enhances processing power and sound management, allowing the device to adapt dynamically to complex auditory environments.
Most hearing aids on the market are programmed and trained using some form of AI, but until recently, leading devices have not had enough onboard processing power to run their own artificial intelligence system in real-time. The Audéo Sphere Infinio achieves this by boosting its processing power by 53 times compared to previous models.
Real-Time AI Processing
A key differentiator of the Audéo Sphere Infinio is its onboard AI technology. This system leverages artificial intelligence to separate speech from background noise in real time, providing clearer and more natural sound quality. The Sphere model is designed to manage a wide range of auditory scenarios with ease, ensuring optimal performance in diverse environments.
Enhanced Bluetooth Connectivity
Phonak has improved the Bluetooth capabilities of the full Audéo Infinio family, allowing for seamless streaming and hands-free calling across a greater distance than previous models. The brand claims that their Infinio hearing aids can maintain a streaming connection with your phone at twice the distance of its predecessors, ensuring consistent connectivity and convenience.
Improved Durability
The Audéo Infinio family boasts enhanced durability, featuring advanced waterproofing that makes the hearing aids more resilient to daily challenges. Phonak has integrated innovations from their previous models, such as the Phonak Life series, into the Infinio series, ensuring robustness and reliability.
While lap swimming with these hearing aids is not recommended, Phonak’s tests indicate they can withstand occasional exposure to water.
Our Take
Phonak Audéo Sphere Infinio (Ultra) is exactly what we expect from an industry leader. It pushes the boundaries of AI, delivers significantly improved battery life, and offers market-leading customization with excellent overall sound quality.
The main trade-off is size. To accommodate the added processing power and larger battery, the device is slightly bigger than some other receiver-in-canal hearing aids.
In the end, this is a product that nearly everyone in the market for a premium hearing aid should have on their shortlist.
- Top of the line customization, Bluetooth connection and rechargeable batteries
- Includes an in-person hearing testat a local clinic
- 2X Bluetooth range vs. previous Phonak generations
- Highly water-resistant option available for active lifestyles
- Onboard AI-processing chip to support in background noise
- More expensive than OTC alternatives
- Somewhat larger physical design than other market leaders
- Phonak Infinio Sphere is a fully customizable, prescription hearing aid appropriate for mild to severe hearing loss.
- Custom earmolds are often recommended for severe hearing loss to provide superior comfort, improved sound quality, and reduced feedback.
- PhonakI nfinio Sphere is a prescription device that is fitted and programmed by a HearingCare Professional (HCP).
- Afteran initial fitting, you can connect with HCP remotely through the myPhonak app.
- Infinio Sphere provides automatic and precise AI adaptation to surroundings, to reduce listening efforts by separating speech in noisy environments.
- Phonak Sphere Infinio uses a first-to-market onboard AI processing chip which makes up to 7 million adjustments per second.
- Phonak Infinio comes in in a comfortable receiver-in-canal style that is easy to wear all day.
- Sits behind the ear with a receiver (speaker) that extends into the ear canal.
- Phonak Infinio offers a rounded, modern form factor and a comparable size to other leading devices.
- Choose from a variety of colors including Chestnut, sandalwood, sand beige, silver gray, graphite gray, velvet black, beige, champagne.
- Phonak Infinio comes with rechargeable batteries only.
- 24 hours on a 3-hour charge (including 80 min of streaming); 30-minute quick charge provides 6 hours battery life
- The standard charger uses inductive charges.
- Pairswith up to 8 Bluetooth devices, with the flexibility to have 2 simultaneously connected.
- Allows hands-free calling for both Apple iOS® and Android™ devices
- Users can use tap control where they tap their hearing aid to answer and end phone calls.
- Infinio uses universal connectivity or the Bluetooth Classic Protocol for all Bluetooth devices.
- Infinio offers 2X the Bluetooth range (distance from your device) compared to older Phonak models.
- Phonak Infinio is designed for ease of use and intuitive handling. Like all behind-the-ear (BTE) styles, it requires the wearer to position the hearing aid comfortably behind the ear and insert the receiver into the ear canal.
- Infinio devices come with an onboard toggle switch for volume and program changes.
- Phonak Infinio is water resistant with a rating of IP68.
- Infiniohas more robust waterproofing than previous Phonak models. This hearing aid canwithstand dust and water submersion in one meter of water for up to 30 minutes.
- Remote care: Available through the Phonak app in coordination with your provider
- Customization: Volume, treble/bass, adjustable custom programs in the app
- Tinnitus masking: Available through your HCP
- Find my hearing aid: Available
- Health tracking: Tracks length of wear time and step count
The national average for a pair of Phonak hearing aids is $7,800.
Our research indicates that the best pricing and care packages are currently available through ZipHearing. ZipHearing offers a pair of Phonak hearing aids with one year of unlimited care for $4,798 per pair.
Process
ZipHearing will match you with a local clinic near your zip code and pre-negotiate a lower price (typically 25% less than the national average).
Fill out the form on this page to get matched with a local clinic.
Our readers are consistently happy with ZipHearing's offering and give the company 97% 5-star ratings on Trustpilot.
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