Alright I suppose
S. FraserVerified purchase, 🇬🇧 United Kingdom
Alright but nothing special.
25 people found this helpful
Certus Hearing Reviews
Certus One complaints and low ratings
Every 1, 2 and 3 star review, unedited. 48 of 1,287 reviews rated 3 or below.
Are there complaints about Certus One?
Yes. 48 of 1,287 reviews, 3.7%, rate it 3 stars or below.
Review pages that show only praise are not worth reading. These are the complaints, ordered by how useful other readers found them, with our replies where a reply was given.
What the complaints have in common
Read end to end, the low-star reviews fall into three groups, and only one of them is really a complaint about the product.
1. Hearing loss outside what the device is for
The most common one-star review is from someone with severe, profound or single-sided loss. No over-the-counter device at any price is built for that: the category is capped on how much it can amplify, deliberately, so it cannot damage hearing further. Certus One is for perceived mild to moderate hearing loss in adults 18 and over. If you have lost hearing suddenly, or in one ear only, see a doctor before you buy anything from anyone, including us.
2. Noisy rooms
The second group bought it expecting restaurants and crowded rooms to be solved. They are not. Reviewers consistently describe good results one-to-one, on the phone and in a quiet living room, and much smaller gains in a pub or a busy restaurant. That gap between quiet and noise is the honest limit of the price bracket, and it is the single most useful thing to know before ordering.
3. Fit
The third group could not get a comfortable seal. Twelve tips in three sizes ship in the box, and a good number of reviewers say the device only started working properly after they changed tips, which is the first thing to try. For a minority of ear canals none of the tips work, and that is a return.
What we do with these
Nothing on this page is edited or hidden. Where a reviewer raised something we could answer, the reply is attached to the review itself. 9 reviews across the whole corpus carry a reply from Certus Hearing.
The 40 most-read critical reviews
Ordered by how many readers marked them helpful. Unedited.
Waste of time for me
Agnieszka O.Verified purchase, 🇬🇧 United Kingdom
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.
Cant stand anything in my ears
Maureen R.Verified purchase, 🇬🇧 United Kingdom
Never could with earplugs either so I should have known. Nothing wrong with them, just not for me. Sent back.
10 people found this helpful
Reply from Certus Hearing
Nothing we can do about that one, but thank you for saying it plainly — it's genuinely useful for anyone else who's never got on with earbuds.
Not sure
Pauline HughesVerified purchase, 🇬🇧 United Kingdom
Not the difference I was hoping for.
10 people found this helpful
Nearly three weeks to get used to
RuthVerified purchase, 🇬🇧 United Kingdom
Everyone else seems to manage in a few days. My own voice sounded wrong for ages. Alright now.
7 people found this helpful
Not for everyone
Ieuan L.Verified purchase, 🇬🇧 United Kingdom
One ear is better than the other.
6 people found this helpful
Fair enough
Yasmin OBrienVerified purchase, 🇬🇧 United Kingdom
I have gone back and forth on this review for a month. The facts: television better, telephone somewhat better, one to one conversation better in a quiet room. Group conversation no better at all, and outdoors on a windy day worse than nothing because of the rush of noise. My loss is on the moderate to severe line and I suspect that is the explanation, and the doctor said as much when I saw him afterwards, which I should have done before ordering rather than after. Three stars because they have genuinely helped in the house and I am keeping them, but somebody in my position should know what they are getting and not read only the five stars.
6 people found this helpful
OK at home, not much use in a crowd
Frank c.Verified purchase, 🇬🇧 United Kingdom
At home and in the car theyve made a real difference. In a busy pub with the match on Im no better off than I was. Depends what your problem is I suppose.
3 people found this helpful
Reply from Certus Hearing
That's a fair review. Directional microphones help in a crowd but nothing worn in the ear solves a loud room with a match on — anyone telling you otherwise is selling. If you haven't tried the noisy-room setting, it's worth a go.
Depends what you want them for
Linda T.Verified purchase, 🇬🇧 United Kingdom
Bit disappointed but theyre usable.
3 people found this helpful
So so
Morag N.Verified purchase, 🇬🇧 United Kingdom
Would suit someone with milder loss than mine.
3 people found this helpful
Not what I wanted
M. PatelVerified purchase, 🇬🇧 United Kingdom
Wanted them for phone calls and they dont do that.
3 people found this helpful
Wasnt for me
Derek M.Verified purchase, 🇬🇧 United Kingdom
My loss is too bad for these. Got a refund.
2 people found this helpful
Bit hit and miss
Terry J.Verified purchase, 🇬🇧 United Kingdom
Some days theyre great, some days not.
2 people found this helpful
Needed my son to set them up!!
Vera H.Verified purchase, 🇬🇧 United Kingdom
Couldnt do the hearing test on my own, the writing is small. Fine since he did it.
1 person found this helpful
Reply from Certus Hearing
Sorry the text was small for you. You don't have to use the app: ring us and we'll run the hearing check with you over the phone and set them up from that. Same for anyone else reading this.
Fine, comfort is my problem
Aisha N.Verified purchase, 🇬🇧 United Kingdom
The sound is good, I have no complaint there. After about six hours my ears ache and I have to take them out.
1 person found this helpful
Middling for me
HEATHER B.Verified purchase, 🇬🇧 United Kingdom
Some improvement. Not as much as I had hoped for.
1 person found this helpful
Sent them back
Halina P.Verified purchase, 🇬🇧 United Kingdom
Not powerful enough for my hearing. Returned them.
1 person found this helpful
Wasnt for me
M. KaminskiVerified purchase, 🇬🇧 United Kingdom
Couldnt get on with them. Sent them back.
1 person found this helpful
Middle of the road
Vikram ShahVerified purchase, 🇬🇧 United Kingdom
Better than nothing, not the transformation the reviews suggested.
Some good some bad
Stefan G.Verified purchase, 🇬🇧 United Kingdom
Does help. Doesnt fix it.
The left one stopped charging after five weeks
Ruth J.Verified purchase, 🇬🇧 United Kingdom
I want to be fair because up to that point I was going to write a five star review. Comfortable, discreet, and a real difference on the telephone, which was why I bought them. Five weeks in, the left one stopped taking a charge. Sat in the case overnight, no light, nothing. I tried the other slot, I tried a different plug, I cleaned the contacts with the brush like the card says. Rang them and they were perfectly polite and offered a replacement or a refund and I took the refund because by then I had lost confidence in them lasting. To be clear, the refund was quick and nobody argued with me. One star is for the product failing inside six weeks, not for how they dealt with it.
The sound was fine, my ears were the problem
Antonio IqbalVerified purchase, 🇬🇧 United Kingdom
I have never been able to tolerate anything in my ear. Earplugs, earphones, the lot. I gave it eleven days because I wanted it to work and by the end of it I was taking them out at lunchtime every day. That is me, not the product. The return was straightforward and the refund was in my account in under a week, which is why it is two stars and not one.
OK
Pat M.Verified purchase, 🇬🇧 United Kingdom
Home is better, the phone is better, and I am glad about both. Anywhere with background noise and I am straight back to watching mouths and guessing. My doctor told me afterwards that my loss is probably past what this kind of device can do, which I wish I had asked before ordering rather than after. Three stars because they have helped, just not enough.
Mixed feelings
Mei W.Verified purchase, 🇬🇧 United Kingdom
The right one is fine, the left has never sounded as good.
Not what I was expecting
Ming K.Verified purchase, 🇬🇧 United Kingdom
I thought Id hear like I used to. I dont. Speech is clearer than it was and thats something, but its not what I had in my head.
They dont do phone calls
Jackie J.Verified purchase, 🇬🇧 United Kingdom
I wanted calls coming straight into them. They dont. My mistake for not checking properly. Returned.
Reply from Certus Hearing
You're right that we don't stream calls. It's on the spec page but it clearly isn't hard enough to find, and that's on us. Certus One is an amplification device, not a headset.
Some help, not enough
Edward C.Verified purchase, 🇬🇧 United Kingdom
They have made a difference at home. In any kind of noise I am back where I started. I think my loss is beyond what these can do.
Mixed feelings
BARRY R.Verified purchase, 🇬🇧 United Kingdom
Cant wear them for more than a few hours.
Sent them back
RAJ L.Verified purchase, 🇬🇧 United Kingdom
Not enough for me im afraid.
So so
ieuan z.Verified purchase, 🇬🇧 United Kingdom
Some help, not a lot
Mixed
RashidVerified purchase, 🇬🇧 United Kingdom
Wind and traffic swamp everything.
No good for me
Sunita c.Verified purchase, 🇬🇧 United Kingdom
No use to me at all. Sent them back.
So so
Hazel W.Verified purchase, 🇬🇧 United Kingdom
Better at home than out. Groups are still hard.
NO GOOD FOR ME
shirley j.Verified purchase, 🇬🇧 United Kingdom
Not strong enough for my level of loss. Got my money back.
NOT FOR EVERYONE
Mei F.Verified purchase, 🇬🇧 United Kingdom
Took me weeks to get used to them.
Not bad, not great
Ling W.Verified purchase, 🇬🇧 United Kingdom
They do something. Whether it was worth it I am still deciding.
MIXED FEELINGS
Joe z.Verified purchase, 🇬🇧 United Kingdom
Fine in a quiet room, not much use in a busy one.
Average
Derek F.Verified purchase, 🇬🇧 United Kingdom
They help a bit. That is honestly all I can say.
Not for me, though the sound was fine
M. HughesVerified purchase, 🇬🇧 United Kingdom
I could never settle with anything in my ear. Returned without a quibble
Returned
Sylvia M.Verified purchase, 🇬🇧 United Kingdom
Didnt suit my ears at all...