1,287 customers rate it 4.8 out of 5, and 96% give it 4 or 5 stars.
The pattern across the reviews is consistent: it works well in quiet rooms and one-to-one conversation, it works less well in restaurants and crowds, and people who expected clinic-grade performance in noise are the ones who left the low scores. Read the critical reviews before you decide.
Is Certus Hearing a real company?
Yes. Certus Hearing sells the Certus One direct to consumers through its online store.
Public data on what the alternatives cost here, with sources.
NZ$511.11 per aid
The Hearing Aid Subsidy Scheme pays NZ$511.11 per hearing aid for adults over 16 with permanent hearing loss, once every six years. It does not cover assessment or fitting fees.
Ranked by how many readers marked them useful, positive and critical alike.
Specsavers quoted me $5,300, these were a fraction
Julie · Verified purchase, 🇳🇿 New Zealand ·
I went and had the free test first. Turns out I'm not on a pension, not on a Community Services Card, so there is no subsidy I qualify for. there is no public funding for someone my age, which I did not know until I was sitting there. Entry pair was around $1,690 and the ones they actually wanted to sell me were $5,300 for the pair, with a payment plan they were very keen to talk about. I said I'd think about it and never went back. Bought these to see what you get for the money. At home very good, on the phone very good, in a cafe I can hear the person across from me, which is what I was after.
211 people found this helpful
I'd stopped going to things
Richard C. · Verified purchase, 🇳🇿 New Zealand ·
This is a bit personal but I'll put it in case it helps someone. Over about two years I stopped going out. Not a decision, I just kept finding reasons. The big family dos first, then coffee with the girls, and then I realised I hadn't had a proper conversation with anyone in a fortnight. It's easier to stay home than to keep asking people to repeat themselves. My son got me these in May. Took about four days before it felt normal, your own voice sounds odd at first, apparently everyone gets that. Rang my sister last week and we were on for over an hour. I'm back at the Tuesday group.
150 people found this helpful
Wore them to my grandson's wedding
Denis White · Verified purchase, 🇳🇿 New Zealand ·
My daughter ordered these about six weeks before my grandson's wedding because she'd had enough of me missing half of everything. I wasn't convinced and honestly I only put them in on the morning to keep the peace. I heard the whole of the best man's speech. Haven't managed that in years, normally you just laugh when everyone else laughs and hope. Volume was fine straight out of the box, we didn't change a thing. Middle tips, which is what's already fitted. Comfortable from nine in the morning till midnight and my ears weren't sore. If you're putting it off, get them before the thing you're dreading, not after.
114 people found this helpful
Four months at the bowls club, nobody's said a word
Fred F. · Verified purchase, 🇳🇿 New Zealand ·
The whole point for me was not having the big beige thing behind the ear. My brother's got those and you can pick them from across the green. These sit down in the ear and I've got short hair, I was expecting someone to say something. Four months and not a word. Sound's good, better in a quiet room than a noisy one obviously, but I can hear the caller now which I couldn't before. Charging's easy, they go in the case on the bench next to the kettle.
82 people found this helpful
Try the other tips before you give up
Maureen N. · Verified purchase, 🇳🇿 New Zealand ·
The size they come fitted with was too small for me and I got a bit of whistle when I put my glasses on. There are spare tips in the packet, three sizes, and swapping takes about ten seconds, you pull one off and push the other on. Went up a size and it's been silent since. Worth saying because I'd have sent them back thinking they were faulty.
63 people found this helpful
No batteries, that was the whole reason
Len H. · Verified purchase, 🇳🇿 New Zealand ·
I've got arthritis in both hands and the reason I never got hearing aids is those tiny batteries. Mum had them and I remember her on the floor looking for one that had rolled off. These have none, they go in a little case and the case plugs in like a phone. In at night, ready in the morning. Haven't touched a battery since March. Took me about a week to get them in properly, I won't pretend day one was easy. Can do it without the mirror now.
63 people found this helpful
Alright I suppose
JACK P. · Verified purchase, 🇳🇿 New Zealand ·
Alright but nothing special.
25 people found this helpful
Waste of time for me
Marion · Verified purchase, 🇳🇿 New Zealand ·
Im deaf in one ear, properly deaf, and these did NOTHING for it. Doctor told me afterwards nothing at this price would have. Should have asked first instead of ordering off an advert. Got a refund.
14 people found this helpful
Reply from Certus Hearing
Sorry this wasn't right for you. Certus One is designed for mild to moderate loss. For profound loss on one side you'd be looking at a CROS or bone-conduction device, which has to be fitted by an audiologist — no over-the-counter aid at any price would have helped. Your refund shows as completed.
They are reviews left by customers who bought Certus One and collected after delivery. They appear in full, including negative reviews. Reviews are never paid for, incentivised with a discount, or removed for being critical. The collection and verification process is set out on the how-we-verify page.
What is the average Certus One rating?
4.8 out of 5 across 1287 reviews.
Does Certus One work for severe hearing loss?
No. Certus One is for perceived mild to moderate hearing loss in adults 18 and over. It is not suitable for severe or profound loss, single-sided deafness, and anyone under 18. The low-star reviews on this site are mostly from people whose loss was outside that range, and anyone with sudden or one-sided hearing loss should see a doctor rather than buy any over-the-counter device.
How much does Certus One cost in New Zealand?
$329.99 for a pair, against a compare-at price of $569.99. It comes with a 90-day home trial and a 2-year warranty.
Is Certus One a hearing aid or an amplifier?
It is a rechargeable in-canal device intended for perceived mild to moderate hearing loss, the same use case the FDA's over-the-counter hearing aid category covers. It is not a prescription device and it is not fitted by an audiologist.
Can I return it if it does not work for me?
Yes, within the 90-day home trial. Several reviewers on this site describe returning theirs, and those reviews are still published.
