Kardiamobile Arvostelua 

At first my Kardia device worked well after initial purchase. Lately, every reading shows “interference, unreadable “…..however, you can purchase an upgrade (for more $$) to get a more accurate reading 😒 In other words, pay more and you will get something accurate. Funny that it worked perfectly right after my initial purchase of the device, but now I can’t manage to get 1 readable report now

I bought the Kardia 6 lead as it promised enhanced ecg results compared to a smart watch. It cost me £199.

What the ads do not tell you is that you need to pay a monthly subscription to get these enhancements. Save your money and avoid at all costs. A total rip off.

If I could give a negative number I would. I got one for Christmas opened it and downloaded the app followed the instructions and nothing. Tried there support line and was instructed to replace the battery tried that and still nothing then was told to produce a receipt I informed them it was a gift and was told they could no longer help me. I didn’t even ask for a refund.

I read other people’s negative reviews and wonder if they are not using the Kardiamobile properly.
You have to be still and the phone has to be still. There has to be no outside interference from another phone,computer or laptop ( in my experience) then you get a simple very clear heart trace. I have had repeated readings that match symptoms present and normal readings when no symptoms are present. So I would rate this bit of kit highly to catch irregularities as they happen. I would say the Kardiamobile has to be used diligently, quietly and patiently.

When they advertise and state that you get more information than a smartwatch that is true but you have to pay for that information!. So on a free basis your Smartwatch is the best device you can own. It gives me 10 times more information than cardia device without payment!. Another scam. Another misleading advertisement. I'm returning this piece of garbage immediately. Update: I contacted support 4 days ago told them I want to return my device. You are allowed to return it within 30 days. I have not heard from them except they sent me an email with all types of information on usage. I've informed them I will now file a complaint with the Federal Trade Commission the Better Business Bureau and consumer affairs!. They know they have a piece of garbage and they're not going to return it!. Stay far far away

Bought this device through Amazon,it will not connect via the app at all. Bought it 24/11/25 today 27/11/25, went to the Amazon returns on the Amazon site only to be advised “not returnable “ fortunately navigating Amazon and contacting help the advisor instantly processed my refund of £75.05 to arrive in my account in 5 working days, also no need to return the device . Well done Amazon but think this company may be a bit shady Kardia Mobile I mean. Just had notice that Amazon has credited my account 1.30pm 27/11/35 spot on Amazon

Don't buy this pile of junk, my lasted about 6 months before it constantly says electrical interference detected I spoke to kardia support who basically refused my warranty claim because I bought it off eBay brand new and not from them, absolute crook of company should be banned from trading in the UK I'll be looking into this as I purchased this item brand new sealed with a receipt as proof but nope they don't want to know looks like I'll have to submit a claim now via eBay to try get my money back

£150 for a inferior product, crap customer service and not to mention their subscription to actually make it work

As you can see from the other reviews, this product doesn’t work. They make it useless until you pay the recurring subscription, it’s a scam.

Junk do not buy them they lie. Mine saod had afib gabe me panoc attack about and made me go into tachyardia, but seeks irrelevant at docs office...said i had alongated qr interval also 2 x battery was falling out. Wont stay in the company wont help amd semds me to help pages. Get a fitbit atleast it does lots of other stuff also amd only 79$

I have afib and Kardia Mobile was recommended by my cardiologist.
I am online researching this device and after seeing 84% of the reviews are negative, I've decided to opt out.

I have been diagnosed with AF recently and purchased this device to monitor my heart. For the last 6 days I have carried out numerous tests each day and each one was recorded as ‘unclassified’ with an average heart rate of 145 bpm. I have had none of the associated symptoms and am taking medication daily ie beta blockers etc etc.

I saw the consultant a couple of weeks ago whilst the device said I was in AF with a heart rate of 150. He confirmed I was in AF but said my heart rate was 70 bpm. I have lost faith in this ‘medical grade’ device and am now reluctant to visit A&E when it shows a rate in excess of 140 when I don’t have any of the usual symptoms associated with AF.

I purchased this Kardia Mobile device and paid for the $99 yearly membership fee. It is absolutely worthless! My wife wasn't feeling well so we decided to check her using the Kardia Mobile device and it showed everything was normal. She had never had heart issues before but, we figured since she didn't know what was wrong we'd rule that out. Apparently because this device is worthless it did not detect that was my was having a massive heart attack and I lost her within an hour later. DO NOT BUY THIS, DO NOT RELY ON IT, DO NOT PAY FOR THE MEMBERSHIP FEE.

I contacted the company after my device stopped working and they refused to replace it and told me to buy a replacement.
I will not be buying a replacement Kardia and would certainly not recommend this product when it has failed after only 3 years old.  At a cost in excess of £200 it represents very poor quality and value as I have not used it that much. I could buy a small TV or Tablet for that price!!
Extremely disappointed with the company and the product and wish I had read the reviews before purchasing.

Won't give reliable readings if you have Parkinson's or other heart problems. Don't believe the advertising. Don't waste your money.

It worked for a while, and was really helpful. However, it now no longer connects to either my phone or iPad. I have emailed their support line four times, but with no reply. The bottom line is ‘don’t waste your money’.

Don't buy if you have existing heart problems. The machine will not work if you have a pacemaker or an Implanted Cardiac Device - and if you get one of these in future the machine will not work any longer. They do not make this clear before you buy and refuse to make a refund, even though the product was not properly described. Really bad experience - don't get caught like I was!

Avoid!My problem is that the app linked to the device is NOT available in the Google App store in the country where the device should be used. So, or is useless to me. I asked for a refund within the 30-day period and NEVER received an answer. I have raised a dispute with Visa. Avoid, absolutely ZERO customer service.

Update: finally I disputed the transaction and ONLY then I got a reply how to return. Disgraceful. Oh, and of course budget tracked return shipping to Ireland on your own expanses.

Be very careful before buying this, I have upgraded my phone and it is not compatible with the Kardia Mobile. Alive Kor were no help at all and all they say is that it is not in their list!

I bought a Kardia mobile as I had a triple heart bypass in March 2025 & wanted reassurance. I showed my GP the results but he wasn't impressed. Why not? Can anyone tell me?

Kardia Mobile refused to replace my broken device after purchase and until I asked to speak to a manager and then this was replaced.

My original subscription for Kardia came out of a savings bank account that I didn’t use.

With evidence from them and from my app, they could see that I had not used this device for over two years.

Despite this, they continue to charge me a monthly fee knowing that my device was broken and I was unable to use their service.

The customer service is absolutely diabolical and given the fact that most people using this app are using it for health reasons would suggest that a number of people have disabilities they deal with every single day.
Kardia Mobile has absolutely zero compassion and their morals are inhumane.

They pray on the vulnerable and extort what they can despite knowing the majority of their customers are vulnerable.

Working like this should be illegal, however due to them operating in numerous countries, you have zero protection from them and you will not get the support you need when you need.

And dare you ask for a refund for the evidence amount of time your account has been inactive due to a broken device. They clearly tell you that even the most recent payment cannot be refunded despite them losing zero for the lack of you not using or needing their service.

Avoid at all costs and my personal recommendations would be to buy an Apple Watch where your ECG’s are free and there is no monthly ongoing cost.

As a note, I have paid over £500 in total without the cost of the machine itself. All to use it for less than two years.