Circular is smart ring created and manufactured in France. Current models involved: 💍 Circular PRO 💍 Circular SLIM 💍 Circular SLIM - Light
black friday
Live Black Friday 2026 smart ring deals for US shoppers: Ultrahuman Ring PRO, Oura Ring 4 and 5, RingConn Gen 2 and Gen 3 and Circular Ring 2, with last year’s prices, two-year costs and results from my chest strap tests.
💍 Smart Rings
Seven nights, eight smart rings and a chest strap as the referee. Five rings recorded my night heart rate reliably and earn a recommendation. Three think I'm running up the stairs in my sleep — I wouldn't buy those.
black friday
If you’ve ever been tempted to buy a smart ring, now’s the perfect time. I haven’t seen smart rings go on sale like this before. Seriously.
💍Circular Smart Rings
Circular is back with the Ring 2 – a sleek smart ring packed with features and no subscription. But without the signature vibration motor and with reused hardware, can they really win back trust after a rocky start? Watch the unboxing and early thoughts.
💍Circular Smart Rings
Circular 2 promises ECG, ovulation tracking, and blood pressure monitoring – all without a subscription. Sounds great, but what’s real and what’s just hype? I share my experience and why the ring's vibrations aren’t just a small detail.
🏆 Best smart ring
Which smart ring tracks steps the most accurately? I spent a week using the StepWatch 5 ankle device as a reference to compare the step-tracking accuracy of the best smart rings and other popular wearables. How did favorites like Oura, Ultrahuman, RingConn, Whoop, and Garmin perform?
💍Circular Smart Rings
Let me share a strange experience. Maybe you've heard rumors about defects and poor customer service from Circular. Well, I faced a critical issue—Error ES02: Upload Error. Luckily, I had a second Circular Slim for testing. Then things got even stranger!
💍 Smart Rings
CES (Consumer Electronics Show) is an annual showcase of technological innovations. Each year, we can see more and more representatives of smart rings. So, what stood out to me this year?
💍 Smart Rings
I’ve received plenty of messages asking about the results from the sleep lab and how the various smart rings performed. Unfortunately, I still don’t have the official results, but I do have some basic data to share for those interested. Here's a quick overview!
black friday
The holidays of capitalism 🎉, Black Friday and its counterparts (Cyber Monday, Christmas?), are here! And if I put aside the often overwhelming aftertaste of consumerist marketing, I have to admit it's a chance to save some money. Maybe even on a new smart ring.
💍Circular Smart Rings
The latest version of Circular SLIM. What's new since the last version? What do I like and what don't I like?
💍Circular Smart Rings
Seven rings and two hands. A unique comparison of smart rings. Cycling, sleep, daily insights and more!