Skip to main content
  1. Home
  2. Wearables
  3. Audio / Video
  4. Emerging Tech
  5. Mobile
  6. Legacy Archives

This smart hearing aid can turn up the volume on the real world, or your AC/DC

Add as a preferred source on Google
IFA 2026
This story is part of our coverage of IFA Berlin 2025

At this year’s IFA tech show in Berlin, we saw plenty of cool new televisions, smartwatches, and tablets — the bread and butter of consumer electronics. But walking the halls of any trade event often uncovers a new piece of tech which perhaps wasn’t getting the attention it deserved, and at IFA, it was the ReSound Linx. No, it’s not a new phone, tablet, or laptop.

It’s a hearing aid.

Recommended Videos

Next to Bluetooth earpieces, hearing aids must surely be the least sexy piece of wearable tech on the market. However, ReSound’s tiny device is easily the best looking hearing aid we’ve ever seen, plus because it connects to the iPhone, it’s way more technically exciting than those stereotypical big, beige, dull models.

Related: Check out all our coverage from this year’s IFA show

A rising concern for everyone

Hold on though, no matter how cool it looks, a hearing aid is only relevant to people who’re going, or are already deaf, right? Nope. Hearing loss is something an increasing number of us will have to deal with in the future, either directly or indirectly, according to ReSound’s Marketing Director Joachim Gast. Quoting World Health Organization figures, Gast claims there are 360 million people with hearing loss in the world at the moment, but that figure is expected to rise to 900 million in just over 10 years.

ReSound LiNX ear
Image used with permission by copyright holder

Why the dramatic increase? Largely, we’re bringing it on ourselves in a dizzying variety of ways, from continuous, excessive ambient sound in the industrialized world — sound exposure, Gast called it — right down to Deadmau5 concerts, and spending years listening to loud music using devices with no volume restrictions at all. Deafness, should it arrive, is socially isolating, dangerous, and can quickly make working impossible. Hearing aids change all that.

However, there’s a stigma attached to them, and wearing one is associated with being old, decrepit, and moments away from slipping quietly into the night. Fine, if you’re 95, but not so good if you’re less than half that age. ReSound’s hearing aid expertly blends interesting science and cool mobile tech into a life-changing medical device. The body is almost unfeasibly small, and it sits nearly unnoticed behind an ear. It’s the hearing aid anyone who adores tech would choose.

Extensive, user-friendly smartphone controls

The ReSound Linx goes beyond good design, thanks to a close collaboration with Apple during its development, resulting in the hearing aid being the first to wear a “Made For iPhone” label. The hearing aid uses Bluetooth 4.0 to communicate with the iPhone, so it acts just like any Bluetooth headset, directly streaming mobile calls, FaceTime calls, music, and video soundtracks to each earpiece. However, because this could be rather confining, the Linx will intelligently filter ambient sound from your surroundings into the earpieces, keeping the world “open.” If you’d rather not hear this, the amplification can be turned off.

The ReSound Linx goes beyond good design, thanks to a close collaboration with Apple

It’s here where ReSound’s tech makes hearing with its aid better, or at least more customizable, than the real world. Directions from your iPhone-integrated car navigation system can be streamed to it, or the iPhone placed close to someone speaking at an event, and the audio picked up by the microphone sent wirelessly to the hearing aid. In the future, Bluetooth information systems could be widely used in public places, from museums to airports, and the ReSound will connect directly to these, too.

The hearing aids can be controlled in two ways. Yes, there is a dedicated app available for the Linx, but wearers can also use the iPhone’s own Accessibility controls. Accessed with a triple press of the Home button, a dedicated menu appears where volumes and modes can be adjusted, making the hearing aid an extension of the phone itself.

ReSound LiNX 9
Image used with permission by copyright holder

Things get way more detailed when you open ReSound’s SmartApp. It’s well designed and easy to use, both essential components for an app of this nature. It provides complete control over the volume level of each hearing aid, plus bass and treble adjustments, so the wearer can tweak the audio depending on their environment. The app also has predefined modes, including those for restaurants, the car, and outdoor events, which tweak the sound specially for these locations.

The app makes use of geo-tagging, and will automatically switch modes when you arrive at the office, or a friend’s very echoey mansion. Geo-tagging also helps if you lose one of the tiny hearing aids, and once it has led you to their general location, an on-screen sliding scale appears when Bluetooth reconnects, helping guide you for the last few meters. The feature list goes on to include automatic pairing, real-time surround sound, and a splash-proof body.

Expensive, but worthy

That all of this is squeezed into such a small, stylish body, which is powered by a standard hearing aid battery that will last six months, and costs pence to replace, is impressive. But it’s the way it can change lives that makes it exciting, and it’s one of a growing number of worthy projects which use the amazing power of a modern smartphone to do this. The downside is the price. Hearing aids in general aren’t cheap, so we shouldn’t expect super techie ones to be any different. How much it’ll end up costing to use ReSound’s Linx hearing aids depends on many factors, but expect it to run to around 1,700 euros per unit ($2,200), hopefully with a hefty insurance discount.

To demonstrate how easy it is to be fitted for a hearing aid, a ReSound expert took a mould of my inner ear, right there in the booth. The process dulled my hearing for five minutes, and at first escaping the chaos of the IFA show floor for a few moments was pleasant, but the thought of life being like that all the time was frightening. By making a stylish hearing aid which takes advantage of the device most of us carry everyday, ReSound is helping to make them cool; and anything that makes more people happy to wear a hearing aid, or more accepting of those who do, can only be a good thing.

Andy Boxall
Andy has written about mobile technology for almost a decade. From 2G to 5G and smartphone to smartwatch, Andy knows tech.
Google could soon let you unlock your Pixel Watch with your phone
An in-development feature could flip the current Watch Unlock feature, letting an authenticated phone unlock the watch automatically.
Google Pixel Watch 4 in black in the hand

If you've set up a PIN on your Pixel Watch, you already know the prompt that shows up every time you slip it back on your wrist. It's a useful security measure, but entering a PIN on that small screen multiple times a day gets old fast. A new report suggests Google may be working on a way to let you skip it.

Watch Unlock in reverse

Read more
A new iPhone app can sniff out Meta smart glasses lurking nearby
Your iPhone can now keep an eye on the glasses keeping an eye on you
The Ray-Ban Meta smartglasses and case.

Android users got an unusual privacy tool earlier this year that could alert them when smart glasses were nearby. Five months later, iPhone owners finally have something similar, and its name makes its feelings about Meta pretty obvious.

AntiZuck is a $2.99 iPhone app that scans for Bluetooth signals associated with smart glasses and alerts you when it thinks one is close. It supports devices including Meta Ray-Bans, Snap Spectacles, Amazon Echo Frames, and RayNeo glasses, while the developer says additional hardware is being added.

Read more
Apple’s smartwatches will look the same for at least another year, or two
Apple's Series 12 and Ultra 4 are reportedly skipping a redesign this year, leaving chip upgrades and health tracking to carry the entire generation.
Apple Watch Series 11 on home screen.

For the last few years, every single Apple Watch has looked identical to the last. The Apple Watch Series 11 shared its dimensions and looks with the Watch 10, and the Watch 10 with the Watch 9. Turns out that streak might not break in 2026 either.

So what's actually changing this year?

Read more