circular.xyz Reviews 703

TrustScore 1.5 out of 5

1.5

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Review summary

Based on reviews, created with AI

Most reviewers were let down by their experience overall. Many people were dissatisfied with the product's quality, noting that the rings often stopped working, had inaccurate tracking, or were made of low-quality materials that deteriorated quickly. Customers also frequently reported issues with the product itself, mentioning that advertised functions were missing or that the rings simply did not perform as expected. A significant number of consumers were not happy with the customer service, describing it as unresponsive or nonexistent, leading to long delays in communication regarding issues like refunds or replacements. Some people were also dissatisfied with the refund process, finding it difficult to obtain their money back for faulty products. Conversely, a small portion of people were satisfied with the product's performance, finding it light, stylish, and effective for their needs.

What people talk about most

Product

Clients share ambiguous opinions on the product. While some reviewers praise its stylish design, comfortable... See more

Quality

Reviewers highlight significant dissatisfaction with the quality of the product. Many customers report that... See more

Customer service

Customers consistently note negative experiences with customer service. Many reviewers describe the support... See more

Response time

Reviewers express significant dissatisfaction with response times. Many customers report month-long delays,... See more

Refund

Customers express significant dissatisfaction with the refund process. Many reviewers report that the company... See more

Based on these reviews

Rated 1 out of 5 stars

I tried to change the ring size following their instructions. No answer via mail or chat. After 1 week I decided to start wearing the ring in a different finger. They announced some issues with the sy... See more

Rated 1 out of 5 stars

My ring does not record the parameters (HRV, O2, RHR, Sleep), been raising this to customer service across multiple channels for 2+ months (since 3rd Sept) and still no response despite ongoing follow... See more

Rated 1 out of 5 stars

If I could give them negative stars, I would. I received their ring close to beginning of September. Data tracking has been horrendous, but they kept reassuring everyone that this is temporary, so I w... See more

Rated 1 out of 5 stars

Thinking about buying a ring to track you health? DO NOT GET A CIRCULAR 2! Read reddit, google search Circular, and check how they did a complete 180 on their Kickstarter campaign. They flat-out li... See more

Rated 4 out of 5 stars

I have reviewed this ring previously - the first time a couple of months after receiving it. At that time I was pretty happy with it but there were definitely issues with delivery and system stability... See more

Rated 2 out of 5 stars

The ring is completely inaccurate about heart monitoring regarding heart rhythm - I bought it because I had AFIB and every EKGI took with it was wrong. Now it has stopped giving me sleep data, despi... See more

Rated 1 out of 5 stars

disappointing from the beginning to the end. They are selling online a product with functions which doesn't even exist. They are still developing some of those promised functions. Bought mine 3 yea... See more

Rated 1 out of 5 stars

This product is a straight-up scam. Do not waste your money. Buy Oura or Superhuman instead. Circular advertises aggressively, which now makes perfect sense — because the product does not work.... See more

Rated 1 out of 5 stars

Supported the Kickstarter pledge and the ring is a pile of junk. Constant app issues, never could count the correct number of steps and the worst customer service you can imagine. They say they take 3... See more

Rated 1 out of 5 stars

Please don't waste your money buying this ring. It doesn't work, servers are too slow to sync data. Half of the activities get missed out as the tracking is unreliable. Customer service is nonexis... See more

Rated 1 out of 5 stars

Circular is incredibly incompetent arrogant in their approach towards the most important ingredient to success. Their CUSTOMERS. I bought my Ring in Spring, got it delivered in October. It didn’t fit... See more

Rated 1 out of 5 stars

It’s not a real business, it’s a scam. I was one of their backers when they were getting funds and it was the biggest mistake I made in 2025. The rings are these plastic things made in China, you c... See more

Rated 1 out of 5 stars

Extremely dissatisfied with my circular Ring 2. It hasn't worked at all since the beginning, and even though the company keeps promising updates and fixes, it doesn't cahnge that the core / base... See more

Rated 2 out of 5 stars

I bought this expecting a really good health tracker. It’s ok when it works, it synchs about 1:3 times I try. Don’t barely works. I’ve had it for a couple of months. You can’t access the healt... See more

Rated 1 out of 5 stars

Received as an early Christmas gift. Was ordered a size too small so we tried to initiate an exchange but support was completely unresponsive and we are now outside the fourteen day exchange window.... See more

Rated 1 out of 5 stars

This is a scam company. Full stop. The rings do not work (because the app does not work). The rings are also very low quality, with the “layers” separating after just two months. The advertised funct... See more

Rated 1 out of 5 stars

The ring just does not measure correctly. There is no way I did last week 20 - 30000 steps as I am office based. Apple counts about 8000 to 10000 I do. Puls is incorrect too and the laser often doe... See more

Rated 1 out of 5 stars

They let me know I could return the ring at my expense for no refund. Wow, thank you! I will never ever do a kickstarter product again. This has been a terrible experience from broken promises abo... See more

Rated 1 out of 5 stars

If I could give 0 stars, I would. The worst cusomter service I have ever received - or, to be precise, not received. Received my ring in August and it stopped functioning as it should mid-Dece... See more

Rated 1 out of 5 stars

The more I use it the more it has shown itself to be total garbage. The company cares more about marketing with pretty pictures than they do about customer satisfaction. I really think someone should... See more

Rated 1 out of 5 stars

My wife ordered a ring through kickstarter mid-August, she should have received a survey to confirm the ring size / colour. Nothing has been received, she has sent countless emails to find out w... See more

Rated 1 out of 5 stars

The company / customer service is truly awful. They sent me the wrong size ring and are insisting that I pay for the shipping costs to send the existing one back and to send the correct size ring. Thi... See more

Rated 1 out of 5 stars

My ring was delivered in September, 2025 and, within the first two days, it was apparent that the ring was simply switching off for hours on end. Consequently, it is useless for monitoring steps or an... See more

Rated 1 out of 5 stars

Very dissatisfied. My ring was shipped on August 9, it’s now September 29 and the ring never arrived. Nobody from Circular cares. I have tried various times to contact them via email chat or messenger... See more

Rated 3 out of 5 stars

The ring had a lot of issues to begin with. I’m still not 100% on all the data accuracy but it definitely is working better now they have fixed the servers. No response from any emails to th... See more

Rated 1 out of 5 stars

Terrible. Do not buy anything. Products don’t work, zero response from customer service. Posted a DM, 4 week response!! Asking for refund, save yourself the stress (ironic given the product). D O NOT... See more

Rated 1 out of 5 stars

Purchased circular ring 2 via kickstarter campaign, used the virtual sizing app AS WELL as had it sized at a jewellers to be extra safe but it still came in too small. I made do and was able to we... See more

Rated 1 out of 5 stars

The ring arrived but has never worked fully as expected. They announced loads of fixes that never actually fixed anything. Customer support is none existed. Avoid at all costs.

Rated 1 out of 5 stars

The app crashes before downloading my data and I have been unable to see the data from the ring in over a week. I have reached out to the company and they offer to send troubleshooting tips (which... See more

Rated 1 out of 5 stars

No answer from costumer service. The ring stopped being able to connect to my phone. I definitely would not recommend anyone to buy. The ring is useless currently and with all the other bad reviews, i... See more

Rated 1 out of 5 stars

The ring that they sent was too small based on their digital measuring tool. I returned it over two months ago, and no replacement has been shipped yet. Every time I ask about it, I am told they nee... See more

Rated 1 out of 5 stars

I am beyond frustrated with Circular's "customer service." I was an early Kickstarter backer , but that loyalty has been met with nothing but generic templates and month-long delays. My ring broke dur... See more

Rated 1 out of 5 stars

Have participated in a kickstarter project and bought 2 rings last year. Haven‘t received them until today. No answers from the customer service on expected delivery date since October. Seems to... See more

Rated 1 out of 5 stars

Would be no stars if I was allowed. Complete waste of money. The ring is incapable of counting steps accurately so how you can you trust any of the other metrics that it reports. one excuse after ano... See more

Rated 1 out of 5 stars

I received my ring, however the size was not as advertised and the fit was a full size smaller than it was supposed to. So I tried contacting their support to get it exchanged for a size larger. It h... See more

Rated 1 out of 5 stars

This related to the Circular Ring 2. I've followed (and purchased) many Kickstarter products. I think this ring is the one that will stop me doing that ever again. It's expensive, so I had h... See more

Rated 1 out of 5 stars

I bought the Circular 2 from a Kickstarter campaign. Received it with a huge delay and it is not working anywhere near how it’s supposed to work. Sometimes it does “wake up” and it can generate some... See more

Rated 1 out of 5 stars

DO NOT BUY We bought this as a kickstarter and were really excited. Nothing works ! Their system seems in constant upgrade. They don’t answer emails. Live measurements are inaccurate when they work w... See more

Rated 1 out of 5 stars

These guys are absolutely awful. Ordered the ring in OCTOBER 2024. It’s been more than 1 year, still haven’t received my ring 😂 Funniest thing: they stopped answering my emails 2-3 months ago, so... See more

Rated 1 out of 5 stars

I got the ring to detect exercise induced AFIB only to find out it doesn’t do that if you are moving. I tried to return it the day after I got it because I knew it had a 14 day return limit. When... See more

Rated 1 out of 5 stars

For months after getting it, they experienced server issues. During that time, I personally received very little data regarding my statistics. It rather defeated the purpose of having a smart... See more

Rated 2 out of 5 stars

A few days ago, I ordered the measurement kit. A couple of hours later, I realized I didn’t need it because I already knew my ring size, so I contacted customer support to ask if they could cancel... See more

Rated 1 out of 5 stars

The ring is quite nice but only worked for a few weeks . No customer support to speak of. Waiting weeks for email response to be brushed off with silly advise already available online. Then wait ano... See more

Rated 1 out of 5 stars

I regret buying this ring, it’s been a complete disappointment from day one. The app barely functions: it crashes constantly, and when you ask for support, the only advice you get is the lazy, c... See more

Rated 1 out of 5 stars

I received an automated, generic response within minutes asking me to repeat steps already covered in the original message. I replied with confirmation and detailed context. It’s now been seven days w... See more

Rated 1 out of 5 stars

I supported the Circular Ring project on Kickstarter in June and was excited to finally receive my order. Delivery was delayed by two months, but I was patient. When the ring arrived in early Se... See more


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1.5

Bad

TrustScore 1.5 out of 5

703 reviews

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Rated 1 out of 5 stars

Circular is incredibly incompetent and areogant…

Circular is incredibly incompetent arrogant in their approach towards the most important ingredient to success. Their CUSTOMERS. I bought my Ring in Spring, got it delivered in October. It didn’t fit and I am trying to get a response on an exchange. No response other than bla bla bla messages from their CEO letters. Stay away from them. They will go out of business. I hope they pay for their arrogance.

6 January 2026
Unprompted review
Rated 1 out of 5 stars

Buyer Beware - Circular.xyz is a scam!!!

I purchased the original Circular ring in June 2024 for $328.00. It was delivered September 04 and worked for 10 days. After persistently trying for a resolution the Circular Slim ring was shipped as a replacement and received in March 2025. That ring failed 3 weeks later. The company launched a Kickstarter campaign and offered existing customers a reduced price ($100.00) in exchange for expanded features such as EKG monitoring. As a trusting person, I paid the $100.00 plus an additional $25.00 for an extended warranty since I still wasn't confident in the reliability of the ring based on my previous experience. The Circular ring 2 was delivered on August 27th and failed on October 26th. The ring won't pair with the app. I have emailed support numerous times and receive requests to fill out a detailed form including ring firmware (which I can't provide since the ring won't pair with the app).

Here's an example of an automated reply warning about the delay in customer service response -

Hi, the Circular team is operational between 9:30 and 18h30 UTC+2.

⚠️ Thank you for your message. We confirm receipt. Due to exceptionally high demand, our response time is currently over three weeks. We appreciate your patience and understanding!

⬇️ Please provide any additional context, such as pictures or further details, within this thread.

🛑 Please do not create a new email thread regarding this request.

📖 In the mean time, most of your technical issues can be solved in autonomy by visiting the Helpdesk on this link: help

😀 A Circular team member will follow up with you as soon as possible. Have a great day! 💍

I have emailed two of the co-founders asking for help and made them aware that I would make my experience known on social media.

Amaury.Kosman - co founder and CEO

Laurent.Bsalis - co founder and COO

Since neither one responded and customer support has not been of assistance, the only conclusion I can come to is that this is a scam company. Don't make the same mistake I did.

My final action will be to file a complaint with SignalConso.

25 October 2025
Unprompted review
Rated 1 out of 5 stars

Terrible Tech

The more I use it the more it has shown itself to be total garbage. The company cares more about marketing with pretty pictures than they do about customer satisfaction. I really think someone should initiate a class action lawsuit against this company and also kick starter.

5 January 2026
Unprompted review
Rated 1 out of 5 stars

Can not recommend...

Stay far, far away from this company. My ring worked for around 2 months and then would not connect. Customer service said )after a dozen emails) they would replace it ... countless emails later and over a year in time they told me that I needed to buy a new one. Have moved on to a new company that I am extremely satisfied with.

6 January 2025
Unprompted review
Rated 1 out of 5 stars

Horrid customer service

I bought a ring from them but when i got it it was too small. Wanted to return for refund but they said since I was part of the kickstarter campaign I couldn’t. They said I could exchange for a new one. So I sent the ring back in October and now they won’t send me a new one. Basically just stole my 300 bucks.

2 October 2025
Unprompted review
Rated 1 out of 5 stars

THIS COMPANY IS A SCAM!!!!!

Ordered in the summer 2025. It's now January 2026 and the company is AWOL. I've contacted them 30-40 times over the past 5 months and they never ever respond. THIS COMPANY IS A SCAM!!!! BUYER BEWARE!!! DON'T WASTE YOUR MONEY FOR A RING THAT YOU WILL NEVER RECEIVE!!!

22 August 2025
Unprompted review
Rated 1 out of 5 stars

Extremely disappointing experience

Extremely disappointing experience. The product arrived late, the sizing was unsafe, and the company has ignored every attempt to get help. I sent multiple emails over several months, including photos, and even contacted the founders on LinkedIn — no reply.

I’m now stuck with a defective ring and zero support. This is not acceptable for a $279 USD product.

21 August 2025
Unprompted review
Rated 1 out of 5 stars

Received as an early Christmas gift

Received as an early Christmas gift. Was ordered a size too small so we tried to initiate an exchange but support was completely unresponsive and we are now outside the fourteen day exchange window. Coupled with issues with initial account and app setup, this is a product I would stay away from.

20 December 2025
Unprompted review
Rated 1 out of 5 stars

The worst experience in my life

The worst experience in my life, this company is a shame, from the kickstarter campaign and the lie for function which will never be released as promised, to the late delivery, through the extreme poor quality of the ring (mine is broken for weeks without answer…) and the support which doesn’t exist. What to say about the application which is crashing or working sometime by “chance”. Fortunately other companies are existing to provide best in class product and support for their customers.

1 October 2025
Unprompted review
Rated 1 out of 5 stars

This ring is a complete scam

This ring is a complete scam. Inaccurate data, often no data at all, syncing issues, ZETI customer support. Last time I ever helped crowdfund a tech product.

AVOID AT ALL COSTS.

21 December 2025
Unprompted review
Rated 1 out of 5 stars

Kickstarter backer warning

Kickstarter backer. After a promising start the ring stopped working. 3 weeks later started working but data is off. Update today to app now ring won't sync. Disappointed in the ring and support. Been trying to return it. Do NOT BUY THIS RING

20 December 2025
Unprompted review
Rated 1 out of 5 stars

The ring just does not measure…and no customer support

The ring just does not measure correctly. There is no way I did last week 20 - 30000 steps as I am office based. Apple counts about 8000 to 10000 I do. Puls is incorrect too and the laser often does not stop after a sport session, leading the battery to drain extremely quickly.
There is NO support as they say themselves that they need 3 - 4 weeks to reply.
In my opinion Circular should stop selling this ring, ramp up support staff and when issues are resolved, promote a working ring.
Otherwise you will be probably better off with a Chinese ring - might be not reliable either, but at least its cheap....

18 December 2025
Unprompted review
Rated 1 out of 5 stars

It’s a joke of a company

It’s not a real business, it’s a scam. I was one of their backers when they were getting funds and it was the biggest mistake I made in 2025.
The rings are these plastic things made in China, you can find the same on AliExpress for 20 euro with an app that actually works better than this.
Their customer care is a joke, there’s zero interest in honouring their obligations, zero concern for the customers, zero accountability or interest in rectifying their errors.
Stay away. They’ll just take your money and worst case scenario, you get nothing; best case scenario you get a shitty plastic ring that doesn’t do anything of what’s advertised.

18 September 2025
Unprompted review
Rated 1 out of 5 stars

Scam

• Quality: The ring feels cheap and poorly made.
• App: The app is completely unusable; it crashes 100% of the time.
• Service: Customer support is terrible—I haven't received any help at all.

17 December 2025
Unprompted review
Rated 1 out of 5 stars

This is a scam company

This is a scam company. Full stop. The rings do not work (because the app does not work). The rings are also very low quality, with the “layers” separating after just two months. The advertised functions of the ring do not exist- sleep tracking is inaccurate and unreliable, simple step counting is so inaccurate it’s useless, and many advertised functions simply do not exist. The company is unresponsive and will only actually do anything when you try to chargeback. They’ll fight tooth and nail to prevent a chargeback, but refuse to respond to emails.
Please stay away. I know circular rings look shiny and promise so many things- but please be aware that this company misrepresents, lies, ignores concerns, and will not stand behind their product.

12 November 2025
Unprompted review
Rated 2 out of 5 stars

I bought this expecting a really good…

I bought this expecting a really good health tracker. It’s ok when it works, it synchs about 1:3 times I try.
Don’t barely works. I’ve had it for a couple of months.
You can’t access the health guidance unless it synchs data… a circular problem if you’ll excuse the pun.
The step count is ridiculously bad.
The Fitbit surge I was previously using is way better.
Customer services don’t even bother to reply.
Save your money; save yourself the hassle. Give this expensive ring a swerve.

16 December 2025
Unprompted review
Rated 1 out of 5 stars

I regret buying this ring

I regret buying this ring, it’s been a complete disappointment from day one. The app barely functions: it crashes constantly, and when you ask for support, the only advice you get is the lazy, copy-and-paste “reinstall the app” routine. That’s not help, that’s dodging the problem.

What makes it worse is the build quality. In under a month of normal wear (no washing up, no gardening, nothing rough), it was already covered in scratches and the so-called “rose gold” finish started peeling off like cheap paint. For something that’s meant to be worn every day, that’s honestly pathetic.

I have friends with Oura and Samsung rings that have been worn for far longer and don’t look wrecked or come with an app that falls over all the time. This one feels flimsy, unreliable, and massively overpriced for what you actually get.

I’ve also tried contacting Circular through the app and still haven’t received a reply. Overall, it’s easily the worst purchase I’ve made in 2025.

16 December 2025
Unprompted review

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