How to Choose Hearing Aids: A Buying Guide for Older Adults

Choosing hearing aids comes down to five questions, asked in the right order: How much hearing have you lost? How will the device be fitted to your ears? How is it powered? Which features will you actually use? And what happens if it doesn’t work out? Over-the-counter hearing aids — sold under FDA rules that went into effect on October 17, 2022 — are meant for adults 18 and older with perceived mild to moderate hearing loss, so the first question decides whether you should be shopping over the counter at all. And because those rules do not require any manufacturer to offer a warranty, the return window and repair terms you read on the seller’s own page matter more than any feature list.

What Choosing a Hearing Aid Involves After 50

Most people arrive at this decision the same way. The television creeps louder. Restaurants turn into noise. Someone you love says, gently or not so gently, that you’re asking “what?” more than you used to.

Hearing loss that comes with age usually arrives slowly and in both ears, which is exactly why it is easy to live with for years before acting. The numbers say most people do wait: the National Institute on Deafness and Other Communication Disorders estimates about 28.8 million U.S. adults could benefit from hearing aids, and among adults 70 and older who could benefit, fewer than one in three has ever used them.

The good news is that you now have two real paths to a device, not one — and knowing which path fits you is most of the work.

Two ways to buy, and why it matters

Prescription hearing aids are selected, programmed and adjusted by an audiologist or hearing aid specialist, usually with follow-up visits bundled into the price. They can be fitted for any degree of hearing loss.

Over-the-counter hearing aids are sold directly to you — online or in a store, no exam required — under FDA rules that went into effect on October 17, 2022. They are intended for adults 18 and older who perceive their own hearing loss as mild to moderate. You set them up yourself, typically with a smartphone app.

That single difference, who does the fitting, drives most of the other choices in this guide.

The question you cannot answer by guessing

“Mild to moderate” is a measurement, not a feeling. Plenty of people with moderately severe or severe loss describe it as mild, because the sounds they’ve lost are the ones they stopped expecting to hear years ago.

A hearing test from an audiologist is the reliable first step. It tells you how much hearing you’ve lost, at which pitches, in each ear — and whether something other than age is involved. That one appointment either clears you to shop over the counter with confidence or saves you from buying a device that was never going to be enough.

The Science, Simplified: What a Hearing Aid Can and Can’t Do

A hearing aid does not restore the hearing you’ve lost. It is a small computer that picks up sound, reshapes it to match the pitches you struggle with, and delivers it to your ear.

Think of a car radio. A cheap sound amplifier is the volume knob — everything gets louder, including the engine noise. A properly fitted hearing aid is the equalizer: it lifts the frequencies where your hearing has faded, usually the high notes that carry consonants like s, f and th, while holding back the ones you still hear fine. That is why turning the TV up doesn’t fix speech clarity, but a fitted device often does.

What the evidence shows about hearing aids and the brain

You may have seen headlines linking hearing aids to protection against dementia. The study behind most of them is the ACHIEVE trial, published in The Lancet in July 2023, which followed 977 adults aged 70 to 84 for three years.

Across the full group, the hearing intervention did not slow cognitive decline. In a subgroup of 238 participants who came from an existing long-term heart-health study and were at higher risk of decline — about a quarter of the total — the hearing intervention was associated with 48% slower decline over three years. The other 739 were healthier volunteers newly recruited for the trial.

So: hearing aids do not prevent dementia, and nobody should buy them on that promise. The honest reasons to treat hearing loss are the everyday ones — following conversation, hearing the doorbell and the smoke alarm, staying in the room socially instead of drifting out of it.

Why adjustment takes weeks, not minutes

Brains that haven’t heard high-frequency sound in years find it startling at first. Your own voice sounds odd. Paper rustles. This is normal and it fades, usually over several weeks of daily wear.

That adjustment period is the practical reason the return window matters so much — a device judged in the first 48 hours is almost always judged too harshly.

Nine Things to Compare Before You Buy

Work through these in order. The first three narrow the field; the rest separate good value from expensive regret.

1. The degree of hearing loss the device is built for

Every reputable seller states the range a device is designed for. If yours says mild to moderate and your hearing test says otherwise, no feature on the list will compensate.

Also check whether your loss is similar in both ears. Loss in only one ear is a reason to see a doctor before buying anything, not a reason to buy one hearing aid.

2. Self-fitting app versus in-person fitting

Under the FDA’s rules, OTC devices must “allow users to control the device settings and customize the device to the user’s hearing needs, through tools, tests, or software.” In practice that means an app on your phone that plays tones, builds a profile and programs the device.

Ask yourself honestly whether you’re comfortable with a smartphone app, or whether a family member will be nearby to help. If the answer is no, the professional-fitting path is worth the extra cost — the fitting is much of what you’re paying for.

3. Rechargeable versus replaceable batteries

Rechargeable models sit in a charging case overnight: no tiny batteries to buy, open or drop, which matters a great deal if your fingers aren’t as nimble as they were. The tradeoff is that you need a working charger and a power outlet, and travel takes a little planning.

Replaceable batteries can be swapped anywhere, including a hotel room with no power, but they are an ongoing expense and a steady stream of waste. Battery life claims vary widely by model, so take any specific hours-per-charge figure from the maker’s own published specification rather than from a review. Our guide to using hearing aids day to day covers the handling side of this choice.

4. The return window and trial period

This is the single most protective term in the whole purchase. You need enough time to wear the devices through a normal month — a noisy restaurant, a family gathering, a phone call, a quiet evening — before the window closes.

Read who pays return shipping, whether a restocking fee applies, and whether the clock starts on the order date or the delivery date.

5. The warranty, in writing

The FDA states plainly that its “OTC hearing aid regulations do not require manufacturers to provide a warranty.” Any warranty you get is the seller’s own promise, so read it before you pay: how long it runs, whether it covers moisture and wax damage (the two most common failures), and whether repairs cost shipping.

6. Bluetooth streaming and phone compatibility

Bluetooth lets calls, music and TV audio play straight into your hearing aids. It has become common across both the OTC and prescription market, but it is not universal and not identical everywhere — some devices stream fully to iPhone and only partially to Android phones, or the other way round.

If streaming matters to you, confirm compatibility with the exact phone you own, by model, on the maker’s own page.

7. Telecoil

NIDCD describes a telecoil as “a small magnetic coil that allows users to receive sound through the circuitry of the hearing aid, rather than through its microphone.”

In plain terms: in a theatre, house of worship, auditorium or ticket window fitted with a hearing loop, flipping to the telecoil setting delivers the speaker’s voice directly, skipping the room noise entirely. It also helps on some landline phones. Many small OTC devices omit it, so if you spend time in looped venues, ask specifically.

8. How the device handles background noise

Restaurants are the hardest test, and no device makes a noisy room easy. Look for directional microphones, which favour the voice in front of you, and some form of noise reduction, plus the ability to switch programs for different settings.

Treat vague marketing language — “crystal clear in any environment” — as a reason to read more carefully, not a specification.

9. Support after the sale

When something doesn’t sound right in week three, who do you talk to? Check whether there is a phone number staffed by people (not only email or chat), whether remote adjustments are available, and whether follow-up help costs extra.

With prescription devices, that support is usually bundled into the price. With OTC devices, the device price is often all you get — so compare the whole package, not just the sticker.

Green Flags, Red Flags and Marketing Tricks

The hearing market rewards careful readers. A few signals sort the honest sellers from the rest.

Signs of a trustworthy seller

• States the degree of hearing loss the device is intended for, in plain words
• Publishes a specification page with model numbers, battery details and compatibility
• Shows the full return policy and warranty before checkout, not after
• Lists a customer support phone number and the hours it is staffed
• Separates the device price from any fitting, follow-up or accessory costs

Claims that should make you pause

• “FDA approved.” OTC hearing aids are sold under the FDA’s over-the-counter hearing aid rules — that is regulation, not an approval endorsement of a particular brand.
• Promises to “restore” or “cure” hearing, or to prevent dementia. The evidence does not support them.
• Sound amplifiers sold as hearing aids. Personal sound amplification products are intended for people without hearing loss — for hunting or birdwatching, say — and are not regulated as hearing aids. The price is tempting and the frequency shaping is not there.
• “Free trial” with a restocking fee buried in the terms, or a trial measured from the order date.
• Urgency and countdown timers. Nothing about this decision should be rushed.

How to compare two devices fairly

Put them side by side on paper: intended degree of loss, fitting method, power source, return days, warranty months, Bluetooth, telecoil, support phone number, total first-year cost including batteries or accessories. The better choice usually becomes obvious once the marketing is stripped out — and it is often not the more expensive one.

When to Talk to a Doctor Instead of Shopping

Some hearing changes are medical events, and buying a device instead of getting them checked can cost you hearing that treatment might have protected.

See a doctor promptly — before buying anything — if you have:

• Sudden hearing loss, in one or both ears, over hours or days (this is urgent; seek care the same day if you can)
• Hearing loss in only one ear, or hearing that is clearly worse on one side
• Ear pain, pressure or drainage of fluid or blood
• Dizziness, vertigo or loss of balance
• Ringing in one ear only
• A history of ear surgery, or a sense that your ear is blocked (earwax is common and easily treated)

And whatever your symptoms, a hearing test from an audiologist remains the reliable starting point. It is usually quick, painless and far less eventful than people expect — and it turns “mild to moderate, I think” into a number you can shop with.

Sources:

• OTC Hearing Aids: What You Should Know — U.S. Food and Drug Administration — Effective date of the OTC rule (October 17, 2022), adults 18+ with perceived mild to moderate hearing loss, the self-fitting requirement, no required warranty, and the distinction between hearing aids and personal sound amplifiers.
• Hearing Aids — National Institute on Deafness and Other Communication Disorders (NIDCD) — Definition of a telecoil and general guidance on hearing aid types and fitting.
• Quick Statistics About Hearing — NIDCD — Estimate that about 28.8 million U.S. adults could benefit from hearing aids, and usage rates among adults 70 and older.
• Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss in the USA (ACHIEVE): a multicentre, randomised controlled trial — The Lancet, July 2023 — Trial size (977 adults aged 70–84), null result in the full cohort, and the 48% slower decline over three years in the 238 higher-risk ARIC participants.
• Hearing loss — Mayo Clinic — Warning signs that call for prompt medical care, including sudden loss, one-sided loss, pain, drainage and dizziness.