Understanding Resound Vivia vs. Resound Nexia Hearing Aids

Updated September 2026 · Dr. Jade Husby, Au.D.

Short Version

ReSound Vivia vs Nexia comes down to one difference that matters. Vivia adds a second chip running a neural network for speech in noise. Nexia does not. Battery, connectivity and size are close between them, and both are still fitted here alongside the newer Sensia platform.

Two ReSound generations, both current on our shelves in Sioux Falls and Buffalo, both worth considering. ReSound Vivia vs Nexia is a question we answer weekly, usually for someone who has read that one is newer and wants to know whether newer is worth paying for. Sometimes it is. Here is the difference that decides it, stated plainly, along with the places where the two are closer than the marketing suggests. You can see the full lineup on our ReSound hearing aids page.

ReSound Vivia vs Nexia: The One Difference That Matters

Nexia made history as the first hearing aid with Bluetooth LE Audio and Auracast. Vivia’s contribution was different. It brought a second chip. Our wider read on what the ReSound lineup does well covers the rest of the range.

Vivia runs a dual chip architecture pairing ReSound’s main processor with a dedicated deep neural network chip. That second chip does one job: separating speech from background sound in real time. Nexia runs conventional processing, and its record carries no AI noise reduction.

That is the whole argument. Everything below is either close between them or explains what that difference buys.

Where ReSound Vivia vs Nexia Is Closer Than You Would Think

Three things the marketing implies are further apart than they are.

Specification	ReSound Vivia 9	ReSound Nexia 9
Battery per charge	Up to 30 hours	Up to 30 hours
Typical use	24 to 36 hours	24 to 36 hours
Streaming use	12 to 24 hours	12 to 24 hours
Fine-tuning channels	17	17
Water and dust	IP68	IP68
Auracast and LE Audio	Yes	Yes
Active connections	2	2
Hands-free calling	Yes	Yes
Tinnitus support	Yes	Yes
Telecoil	No	No
Dedicated AI noise chip	Yes	No

Look at that table and one row does the work. Battery, channels, connectivity and durability are the same on both. If you have been told Vivia lasts longer than Nexia, the catalog does not support it.

What the Second Chip Buys You

A neural denoiser is trained rather than programmed. It has learned what speech looks like against noise, and it applies that in real time while the other chip keeps everything else running.

In practice, that shows up in a specific set of rooms:

• Restaurants at their busiest, where the noise is other conversation rather than machinery
• Family gatherings, with several voices at once and children in the mix
• Church halls and community rooms, where hard surfaces bounce everything around
• Cars, where road noise sits under the speech rather than beside it

Vivia also carries Intelligent Focus, which narrows the listening beam when a room becomes difficult, and the M and RIE receiver option, which places a microphone inside your ear so the shape of your own outer ear helps your brain locate sound.

Where it does not show up: quiet rooms, one-to-one conversation, television with the room settled, and phone calls. In those situations you would be hard pressed to tell the two apart, which is a real argument for the less expensive device if that is most of your week.

What Nexia Still Does Well

Being the older generation is not the same as being outclassed.

• Conventional directional processing that has been refined over several generations
• The same Auracast and Bluetooth LE Audio that made it notable at launch
• The same 30 hour battery and 17 channels as Vivia
• Tinnitus sound support
• An IP68 rating

For a patient whose difficult listening is occasional rather than constant, Nexia does the job and leaves budget for something else, such as a remote microphone or a second pair of custom molds.

Where Sensia Changes the Picture

ReSound launched Sensia in August 2026, in the 9 and 7 tiers, and it complicates ReSound Vivia vs Nexia in an interesting way rather than settling it.

Platform	AI noise chip	Battery	Channels	CROS compatible
ReSound Sensia 9	Yes, with AcoustIQ and four synchronized mics	Up to 24 hours	17	Yes
ReSound Sensia 7	Yes, with manual program selection	Up to 24 hours	14	Yes
ReSound Vivia 9	Yes	Up to 30 hours	17	Handled by a separate Vivia CROS device
ReSound Nexia 9	No	Up to 30 hours	17	Handled by a separate Nexia CROS device

Notice that Sensia is the newest and has the shortest battery of the three. Newer is not automatically better on every axis, and this is a clean example. Sensia’s advantages are the current denoiser, the automatic handling on the 9, and native CROS and BiCROS compatibility. Vivia’s advantage is six more hours per charge.

Size, Handling and Living With Either One

Both are microRIE devices, both disappear on an ear, and both ask the same things of you day to day.

• Charging. Portable cases on both, so a weekend away needs one small box rather than a wall socket. Thirty hours means a missed night is recoverable
• Handling. A microRIE is small, which is the point and also the catch. If your fingers are stiff, hold one before you commit, because the shell that hides best is also the shell that is hardest to grip
• The app. Both use the ReSound app for volume, programs and small adjustments at home, and both support remote fine tuning with our team
• Wax and moisture. Both carry IP68 ratings, and both still need their wax filters changed. Our hearing aid repair and maintenance service handles that in a few minutes
• Receivers. Vivia offers the M and RIE option, which puts a microphone in your ear canal. Worth asking about, because the people who like it tend to like it a great deal

None of this appears in a specification comparison, and all of it decides whether the device is still being worn in a year.

Choosing Between Them

Two questions settle most ReSound Vivia vs Nexia conversations.

How often is your hardest listening hard? If you eat out several nights a week, sing in a choir, or work in a busy office, the neural chip earns its place. A week that is mostly quiet with an occasional gathering does not need it.

What does your audiogram say? Degree and shape of loss narrow the field before preference enters, and neither of these devices is a power solution. For a profound loss the conversation moves to a dedicated behind-the-ear power line.

• Choose Vivia if noise is your main complaint and you want the device to handle it
• Choose Vivia if you want the M and RIE receiver option for more natural sound placement
• Choose Nexia if your difficult listening is occasional and the budget matters
• Choose Nexia if you loved a previous ReSound fitting and want the same familiar behaviour
• Look at Sensia instead if you have hearing in only one ear, since it is CROS and BiCROS compatible on the device itself
• Look elsewhere entirely if you rely on looped venues, because neither has a telecoil

If You Already Wear Nexia

A fair number of the people asking this question already own one of these, and the honest advice differs from the advice we give a first-time buyer.

• If your Nexia is working and your hearing has not changed, there is no reason to replace it. A device that fits and is programmed correctly is doing its job, whatever launched since
• If your hearing has shifted, the first step is a fresh test and a reprogram rather than a new purchase. Plenty of complaints that sound like device failure are a prescription that has drifted
• If noise is the specific complaint, and reprogramming does not settle it, that is the case where Vivia’s second chip is worth the money
• If the receivers or wax filters are the problem, that is a service visit, not a purchase

We would rather see you for a check and send you home with the device you already own than sell you a replacement you did not need. That is not charity, it is how a clinic keeps patients for twenty years.

Trying Them Properly

A fitting room is a quiet room, which is the one place these two devices are hardest to tell apart. So we set the trial up differently when noise is the question.

Take them to the restaurant you have been avoiding. Wear them at the family dinner where you usually give up and nod. Sit in the car with the radio on and someone talking from the back seat. Those are the conditions the second chip was built for, and they are the conditions that will tell you whether it earns its place in your ears.

Ten days is enough to find out, and it is why the trial exists rather than being a formality. Bring back the one that lost, and tell us why, because the reason usually points at an adjustment rather than at the wrong device.

What Neither of Them Will Do

Worth stating plainly, because a ReSound Vivia vs Nexia page that only lists strengths is an advertisement.

• No hearing aid removes background noise. Both reduce it so speech is easier to follow
• Neither has a telecoil, so looped venues need a different answer
• Neither is a power device, so a profound loss needs a dedicated behind-the-ear line
• Neither fixes a poor fitting, and the gap between a verified fitting and an unverified one is wider than the gap between these two devices

Only about one in five people who would benefit from a hearing aid wears one, according to the National Institute on Deafness and Other Communication Disorders. Choosing between two good ReSound platforms puts you well ahead of that.

The Part That Decides Your Result

Whichever way ReSound Vivia vs Nexia lands for you, the fitting does more for your hearing than the choice does.

We test your hearing including speech testing rather than tones alone, program to your loss, then verify the output inside your ear canal with live speech mapping rather than trusting the software’s prediction for an average ear. Then we adjust over the following weeks, because the first setting is rarely the last and your brain keeps acclimatising for a month or more.

Both platforms also support remote fine tuning, so a small adjustment does not always require a drive into Sioux Falls.

Why Choose Stanford Hearing

We are locally owned, with 20-plus years of trusted care in Sioux Falls and Buffalo, and voted Sioux Falls Local Best 20 years. We carry five premium hearing aid brands and recommend based on your hearing, your lifestyle, and the places you most want to hear well. Settling ReSound Vivia vs Nexia here means we are equally happy to fit you the less expensive of the two when it is the right answer.

• Free consultations with no pressure to buy
• A 10-day trial so you can wear your hearing aids in real life before you decide, and if they are not right, return them within the 10 days for a full refund
• A price match guarantee, so you will not overpay locally. If a nearby clinic beats our price on a comparable device, we meet it
• 12 months no-interest financing, subject to credit approval
• In-network with all major insurance providers, including Medicare Advantage, with benefit verification before you arrive
• Sioux Falls and Buffalo clinics, with remote care available for small adjustments

Schedule a free consultation and we will put both on your ears in a room with real noise in it, which settles this faster than any table.

Common Questions About ReSound Vivia vs Nexia

Is Vivia worth the upgrade over Nexia?

It depends on how often your listening gets difficult. Vivia’s dedicated neural chip separates speech from noise in a way Nexia does not attempt, and in quiet rooms the two are hard to tell apart. Stanford Hearing will help you weigh your own week rather than guessing.

Does Vivia have better battery life than Nexia?

No. Both are recorded at up to 30 hours per charge with 24 to 36 hours typical. If you have read otherwise, the catalog does not support it.

Do both support Auracast?

Yes. Nexia was the first hearing aid to carry Bluetooth LE Audio and Auracast, and Vivia carries the same. Both hold two active connections and support hands-free calling.

Should I wait for Sensia instead?

Sensia is available now at Stanford Hearing, in the 9 and 7 tiers. It has the current denoiser and native CROS compatibility, and a shorter battery than either Vivia or Nexia. Worth seeing all three before deciding.

Do either of them have a telecoil?

Neither does. If looped venues are part of your week, tell us at your appointment, because that requirement rules out most current receiver-in-canal devices and points toward a behind-the-ear option instead.

Can I try both?

Yes. Every purchase from Stanford Hearing includes a 10-day trial so you can wear your hearing aids at home, at work, and out with people before you decide. If they are not right for you, return them within the 10 days for a full refund.