ReSound Vivia vs. Phonak Sphere Infinio

TL;DR: ReSound Vivia and Phonak Sphere Infinio are two flagship AI hearing aids with different strengths. Vivia wins on size, simplicity, and all-day battery. Sphere wins on raw noise-fighting power and device pairing. This guide shows which fits your ears and your life.

ReSound Vivia vs Phonak Sphere Infinio is a flagship showdown worth getting right. Both are prescription-only, and a licensed hearing care provider programs them. Each promises clear speech in noise, easy streaming, and all-day comfort. Their designs, sound engines, and apps go different directions, though. First, it helps to know the earliest signs of presbycusis. Your loss shapes the right pick.

ReSound Vivia vs Phonak Sphere Infinio at a Glance

AI Sound Processing: Two Supercomputers in Your Ears

AI is not just for self-driving cars anymore. It now runs your hearing aids. Both Vivia and Sphere use deep learning for smarter, adaptive sound. They take very different routes there.

ReSound built the ReSound Vivia around an always-on Deep Neural Network. The network learned from millions of real conversations across many settings. That data helps Vivia recognize speech in context and lift it out of noise. Its standout trick is Intelligent Focus. The feature prioritizes whatever direction you face. Turn toward a friend at dinner, and Vivia locks onto their voice. The idea is to mimic natural hearing, using your gaze as a cue.

The Phonak Sphere Infinio takes a hardware route. It runs a dedicated DEEPSONIC AI chip beside its main processor. On top sits AutoSense OS 7.0, which reads your surroundings and shifts modes on its own. Walk into a coffee shop, and it adapts. Someone speaks on your left, and it steers that way. Its Spheric Speech Clarity pulls voices out of loud rooms. Phonak reports up to 35% less listening effort in tough noise, per its field-study data.

One practical note. Vivia's DNN runs all the time. Phonak's heaviest AI mode may need switching on in some settings. That is small, but it affects how much AI help you get minute to minute.

For a different flagship matchup, see our Starkey Edge AI vs. Phonak Sphere Infinio comparison.

Battery Life: Power for the Long Haul

Battery life is easy to ignore, until your hearing aids die mid-sentence.

Vivia holds a strong charge. On a full charge, it runs up to 30 hours. Heavy streaming or constant Intelligent Focus brings that to about 20 hours. Run the DNN and stream nonstop, and you near 10 hours. A 10-minute quick charge adds about 2.7 hours. Vivia also offers a disposable-battery version if you prefer.

Phonak Sphere Infinio posts a higher ceiling. It runs up to 56 hours in easy listening. Lean on the AI Spheric mode all day, though, and that drops to about 10 hours. The charging case adds up to three more full charges for travel. A full top-up takes about 3.5 hours.

So the honest answer depends on how you listen. On mostly quiet days, Sphere lasts longer. If you run heavy AI and streaming, Vivia's steady 30 hours pulls ahead.

Size, Style, and Discretion

If you wear something all day, it should feel comfortable and stay discreet.

ReSound calls the Vivia its smallest microRIE yet. The sleek build hides behind your ear and still packs top-tier tech. It comes in three styles: the microRIE, RIE 61, and RIE 62 with a telecoil. All carry an IP68 rating for dust and moisture. You also get 10 color options to match hair or skin.

Phonak Sphere Infinio runs larger, thanks to its second chip. Smaller ears or glasses wearers may find it a snug fit. Phonak counters with more form factors, though. You can get custom in-the-ear, completely-in-canal, and invisible-in-canal styles. For hard-to-fit ears, Phonak offers more paths.

In short, Vivia wins on discretion, and Phonak wins on fit variety.

Bluetooth and Connectivity: Streaming, Calls, and Auracast

Modern hearing aids double as Bluetooth headsets. Here is how these two handle wireless.

ReSound Vivia supports Bluetooth LE Audio and is Auracast-ready. You can stream from iPhones and most Android phones. iOS users get native hands-free calling, while Android may need a clip-on mic. Vivia pairs with ReSound accessories like remote mics, TV streamers, and phone clips. Its app also runs remote-care sessions, so you tune settings from home.

Phonak Sphere Infinio leans on universal Bluetooth Classic instead. That pairing works with almost any device, old or new. It connects to 8 devices and holds two active links at once. Both Android and iOS users get true hands-free calls. Phonak claims up to double the streaming distance of older models. It is not Auracast-ready, but it pairs with Roger mics, PartnerMic, and the TV Connector.

If you live on Zoom, Phonak's universal pairing is hard to beat. If you want Auracast and simple streaming, Vivia keeps it clean.

To see how a top online brand stacks up, read our Jabra hearing aids versus Phonak comparison.

App Control and Customization

An app matters most when your hearing needs shift day to day.

ReSound Vivia uses the Smart 3D app. It is clean and easy to navigate. You can adjust volume, switch programs, and fine-tune with a 3-band equalizer. You can also turn on tinnitus masking. Tap controls on the microRIE handle calls and audio with a double tap. You can even book remote sessions with your provider. Vivia keeps things simple without burying you in menus.

Phonak Sphere Infinio uses the myPhonak app. It covers volume, programs, and a health tab that tracks steps and wear time. You can build custom programs and adjust noise reduction and speech focus. A "find my hearing aids" tool helps when they vanish into the couch. Phonak gives you more granular control for a tech-savvy wearer.

Everyday Listening: What Wearers Report

Specs aside, here is how the two perform day to day.

ReSound Vivia earns high marks for speech clarity in noise. Wearers rate it best with Intelligent Focus switched on. Its directional awareness feels natural and intuitive. Many report less fatigue in restaurants and outdoor crowds. Some note that a careful fitting matters, since default settings can feel soft.

Phonak Sphere Infinio wins praise for its Spheric mode. The AI shines when background noise turns brutal. Wearers describe the sound as rich and full. Following speech takes little effort. The size and the AI-mode battery hit are the trade-offs. Spheric mode may also need manual switching.

Both deliver premium performance. Your best pick depends on how often you hit real noise, your comfort with tech, and your style.

Which One Belongs in Your Ears?

The choice comes down to lifestyle, preference, and hearing needs.

• Choose Vivia for a tiny device, long easy-listening battery, and simple controls.
• Go with Sphere for the strongest noise fighting, deep app control, and custom-fit options.

Both are prescription hearing aids, not over-the-counter. A licensed hearing care provider should program them and fine-tune the fit over time.

Ready to Try One?

At Injoy, we focus on premium prescription hearing aids like ReSound and Phonak. Our licensed hearing care providers program your devices remotely, fit them by phone or video, and adjust them for the life of the devices. We do not service hearing aids bought elsewhere, so we can get yours right the first time.

If you are ready to explore the latest AI hearing technology, we will help match the model to your life. Talk to one of our hearing care experts to take the first step.

Can I switch between the ReSound Vivia and Phonak Sphere Infinio during my trial?

Yes. Every Injoy order includes a 60-day risk-free trial with no restocking fees. If one brand is not right, call us. We can adjust the fit or help you try the other.

Do I need a hearing test before I buy either one?

You do. We program both to your hearing profile before they ship. Upload an audiogram from any provider, or take our free online hearing test. Our team uses it to set your starting point.

Are the ReSound Vivia and Phonak Sphere Infinio waterproof?

Both carry an IP68 rating, so they resist dust and moisture. That covers sweat and light rain. Neither is built for swimming or submersion, so keep them dry when you can.

Which brand is easier for a first-time user?

Many first-timers prefer the Vivia and its simple Smart 3D app. The myPhonak app offers deeper control for tech-comfortable wearers. Our hearing care experts can walk you through either one.

Does Injoy program these before shipping?

Yes. A licensed hearing care provider programs your devices to your profile first. They ship already set to your hearing. Your provider then fine-tunes the fit by phone or video after they arrive.