What Is Phonak Infinio Sphere?

Phonak Infinio is a full family of prescription hearing aids, including receiver-in-canal (RIC), in-ear styles, and CROS options.

The Infinio Sphere is the most advanced model in the lineup, featuring enhanced AI processing for background noise management. Most people considering Phonak will ultimately land on Sphere due to its additional on-board features, though some may choose other Infinio models for longer battery life or different form factors.

Design and Build: Larger by Design

Phonak Infinio Sphere comes in a behind-the-ear receiver-in-canal (RIC) style.

Compared to previous Phonak generations, these hearing aids are a bit larger. That’s because they include:

• A larger battery
• Two processing chips
• Significantly increased computing power

This extra hardware supports Phonak’s AI-driven sound processing, but it does make Infinio Sphere one of the larger RIC hearing aids on the market.

One detail I appreciate is the snap receiver, which makes replacements easier during long-term ownership.

Sound Quality and Background Noise Performance

This is where Infinio Sphere really stands out.

In standard mode, sound quality is similar to previous Phonak products. But when Sphere mode activates, the AI layer kicks in:

• Ambient noise drops
• Speech comes forward
• Sound becomes smoother, clearer, and more comfortable

In busy environments like driving, public spaces, and restaurants, speech clarity improved noticeably and listening effort felt lower.

In earlier use, I noticed occasional AI misfires where the devices momentarily prioritized the wrong speaker. Adjusting out of Sphere Mode corrected this.

With the launch of the Ultra version, AI performance has been enhanced and the platform has transitioned to AutoSense 7.0, which may better address those initial inconsistencies through smarter environmental adaptation. This is advanced AI technology at work — innovative and powerful — and only becoming more refined.

Rechargeability and Battery Life

Battery life was previously one of the main considerations with earlier Infinio Sphere models. With the updated Infinio Ultra Sphere, performance has improved significantly.

While most rechargeable hearing aids offer 25–40 hours per charge, the Ultra Sphere now delivers up to approximately 56 hours of use in typical listening environments. Even when advanced AI features are actively processing background noise, battery efficiency has been enhanced compared to prior versions.

The included charging case provides reliable, convenient recharging at home or on the go, helping ensure your devices are ready when you need them. A full charge is quick and easy, making overnight charging simple and seamless.

Overall, the latest updates deliver longer wear time, smarter power management, and a more dependable everyday experience.

Bluetooth Performance: Best-in-Class Connectivity

If you asked me which hearing aid offers one of the best Bluetooth experiences today, Phonak Infinio Sphere would be my pick.

Phonak upgraded to Bluetooth 5.3 Low Energy Audio while retaining Bluetooth Classic, allowing:

• Seamless phone calls on both iPhone and Android
• No need for accessibility menu pairing
• Strong streaming stability
• Multi-device connectivity (up to 8 remembered devices, 2 active at once)

What impressed me most was range. I could leave my phone in one room and walk around without losing connection — something I haven’t experienced with other prescription hearing aids.

Auracast compatibility is built in and can be enabled via firmware update with your audiologist.

The MyPhonak App: Simple Navigation with Powerful Control

The MyPhonak app is available in both the Apple App Store and Google Play Store, and once your hearing aids are paired, the experience is surprisingly easy to navigate — even if you’re new to hearing aid apps.

Right from the home screen, you can see your current listening program and battery status, including both percentage and projected remaining time. This makes it simple to understand how much charge you have left at a glance, especially helpful given the shorter battery life when using Sphere mode.

At the top of the app, you can quickly toggle between programs, including Spheric mode, standard automatic mode, or any custom programs you create. Switching modes takes just a tap, allowing you to adapt instantly as your environment changes.

From there, the app gives you intuitive sliders to adjust comfort versus clarity, manage overall volume, and fine-tune how much speech and background noise you hear. You can also build personalized programs for specific situations — like time at home, noisy restaurants, or conversations on the go — and save them for easy access later.

For users who want deeper control, the app allows you to adjust sound balance and create highly customized listening experiences, while still keeping the interface approachable and easy to understand.

Beyond sound settings, MyPhonak also includes lifestyle features like step tracking and activity monitoring, as well as a remote support option that lets your hearing care professional make adjustments virtually when enabled. This makes ongoing care more convenient and reduces the need for frequent in-person visits.

Overall, the MyPhonak app strikes a strong balance between simplicity and flexibility. It gives you meaningful control over how your hearing aids perform throughout the day, without overwhelming you — adding real value to the Infinio Sphere experience and helping you get the most out of your devices.