BettaScore
BettaScore
CIRCULAR

CIRCULAR Ring 2

Smart Ring
CIRCULAR Ring 2
CIRCULAR Ring 2
1 / 5
RankNo. 13 of 14Best Smart Rings
Ranking Net Score+2+2 from reviews0 from votes
Sources2012 positive · 26 negative
Priced at$349.00

Released Jul 2025

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No. 13 of 14 in Best Smart Rings
Priced at$349.00

Released Jul 2025

Shop on AmazonShop on Google
+2Ranking net score+2 from reviews and discussions0 from votes on BettaScore20 sources

The Circular Ring 2 is a subscription-free smart ring with ECG, AFib detection, sleep and blood pressure tracking, and up to 7 days of battery life for Android and iOS.

What reviewers say, by topic

Pick a topic to see the quotes behind it. Topic points add up to the Ranking Net Score.

Total +2 pts

Net positive 3

Net negative 3

Sentiment
Format
614
20 sources
Redditdiscussion

Feedback On The Circular Ring 2

  • Sleep & Activity Tracking-1 pts

    The sleep tracking is clearly a mess.

  • Health Readings & Insights-1 pts

    The ECG is unreliable and unusable.

  • Comfort, Fit & Design-1 pts

    The size is nothing like what's advertised

  • App & Connectivity-1 pts

    you can't view data from previous days other than what's recorded during sleep.

View source ↗
The sleep tracking is clearly a mess. The ECG is unreliable and unusable. The size is nothing like what's advertised you can't view data from previous days other than what's recorded during sleep.
YouTube
  • Sleep & Activity Tracking+5 pts

    It tracks sleep quality, stress levels and energy patterns using advanced sensors and AIdriven insights to provide personalized recommendations.

  • Health Readings & Insights+5 pts

    The circular ring 2 monitors your heart, sleep, stress, and even your energy levels with hospital-grade accuracy

  • Battery & Charging+5 pts

    They highlight its lightweight titanium build, comfort, long 7-day battery, and AI-driven insights via the 'Kira' assistant.

  • Comfort, Fit & Design+5 pts

    They highlight its lightweight titanium build, comfort, long 7-day battery, and AI-driven insights via the 'Kira' assistant.

  • App & Connectivity+5 pts

    Key pros include no subscription fees, strong privacy compliance, and advanced sensors.

It tracks sleep quality, stress levels and energy patterns using advanced sensors and AIdriven insights to provide personalized recommendations. The circular ring 2 monitors your heart, sleep, stress, and even your energy levels with hospital-grade accuracy They highlight its lightweight titanium build, comfort, long 7-day battery, and AI-driven insights via the 'Kira' assistant. They highlight its lightweight titanium build, comfort, long 7-day battery, and AI-driven insights via the 'Kira' assistant. Key pros include no subscription fees, strong privacy compliance, and advanced sensors.
Redditdiscussion

Feedback On The Circular Ring 2

  • Health Readings & Insights-1 pts

    my step count is through the roof because I ride a motorcycle daily and the ring counts at least some of that motion as steps which throws out most of the metrics.

View source ↗
my step count is through the roof because I ride a motorcycle daily and the ring counts at least some of that motion as steps which throws out most of the metrics.
Redditdiscussion

Circular Ring 2 Reviews

  • Comfort, Fit & Design-1 pts

    Bulkier than I expected for 2025 but I can live with it for the range of sensors.

View source ↗
Bulkier than I expected for 2025 but I can live with it for the range of sensors.
Redditdiscussion

Handson Circular Ring 2

  • Comfort, Fit & Design-1 pts

    On my index finger, it’s only slightly bulky; on the middle and ring fingers, I feel its thickness more

  • App & Connectivity+1 pts

    The App: Slick. Clean. Easy to use. Not overwhelming.

View source ↗
On my index finger, it’s only slightly bulky; on the middle and ring fingers, I feel its thickness more The App: Slick. Clean. Easy to use. Not overwhelming.
Redditdiscussion

My 6 Month Review Of Circular Ring 2

  • App & Connectivity-1 pts

    But it's just not transferring over to the app.

  • Subscription, Value & Support-1 pts

    have not even gotten an acknowledgement email.

View source ↗
But it's just not transferring over to the app. have not even gotten an acknowledgement email.
YouTube
  • App & Connectivity-5 pts

    the app had serious sync issues.

  • Subscription, Value & Support-5 pts

    customer support was almost impossible to reach.

the app had serious sync issues. customer support was almost impossible to reach.
Redditdiscussion

Circular Ring 2 Reviews

  • Subscription, Value & Support-1 pts

    the ‘chat’ has a 3 WEEK response time.

View source ↗
the ‘chat’ has a 3 WEEK response time.
Redditdiscussion

My 6 Month Review Of Circular Ring 2

  • Subscription, Value & Support-1 pts

    Email sent to support with no response so playing the waiting game.

View source ↗
Email sent to support with no response so playing the waiting game.
YouTube
  • Subscription, Value & Support-5 pts

    The reviewer, who owns previous Circular rings, is skeptical about the Circular Ring 2 due to the company's history of poor customer support and server issues. While the ring boasts impressive features like ECG and no subscription on paper, the absence of the vibration alarm from the first generation is a major disappointment. The reviewer criticizes the crowdfunding approach of unlocking features with funding milestones, calling it a marketing gimmick. They advise potential buyers to be very cautious or wait, as the brand still has trust to earn back.

The reviewer, who owns previous Circular rings, is skeptical about the Circular Ring 2 due to the company's history of poor customer support and server issues. While the ring boasts impressive features like ECG and no subscription on paper, the absence of the vibration alarm from the first generation is a major disappointment. The reviewer criticizes the crowdfunding approach of unlocking features with funding milestones, calling it a marketing gimmick. They advise potential buyers to be very cautious or wait, as the brand still has trust to earn back.
Redditdiscussion

Circular Ring 2 Reviews

  • Sleep & Activity Tracking+1 pts

    That tracking seems to line up data wise with my Fitbit sense 2 data.

  • Comfort, Fit & Design0 pts

    It’s going to take some adjustment as the bulk of the ring presses into my other fingers on either side.

View source ↗
That tracking seems to line up data wise with my Fitbit sense 2 data. It’s going to take some adjustment as the bulk of the ring presses into my other fingers on either side.
Redditdiscussion

My 6 Month Review Of Circular Ring 2

  • Sleep & Activity Tracking-1 pts

    No sleep data for a while now.

  • Battery & Charging-1 pts

    They've acknowledged my battery is toast.

View source ↗
No sleep data for a while now. They've acknowledged my battery is toast.
YouTube
  • Sleep & Activity Tracking+5 pts

    The Circular Ring 2 is praised for superior sleep tracking

  • Health Readings & Insights+5 pts

    the latter excels in health features with onboard ECG and FDA-cleared a-fib detection.

  • Battery & Charging-5 pts

    the latter excels in health features with onboard ECG and FDA-cleared a-fib detection. The Circular Ring 2 is praised for superior sleep tracking and premium titanium build, but has shorter battery.

The Circular Ring 2 is praised for superior sleep tracking the latter excels in health features with onboard ECG and FDA-cleared a-fib detection. the latter excels in health features with onboard ECG and FDA-cleared a-fib detection. The Circular Ring 2 is praised for superior sleep tracking and premium titanium build, but has shorter battery.
YouTube
  • Comfort, Fit & Design+5 pts

    In everyday life, you forget pretty quickly that you wear it. And that's a huge plus compared to bulky smartwatch, for example

  • Sleep & Activity Tracking0 pts

    caution against relying on it for fitness tracking.

  • Health Readings & Insights+5 pts

    Continuous heart rate & SpO₂ monitoring, ECG tracking

  • Battery & Charging+5 pts

    Long battery life & sleek design

caution against relying on it for fitness tracking. Continuous heart rate & SpO₂ monitoring, ECG tracking Long battery life & sleek design In everyday life, you forget pretty quickly that you wear it. And that's a huge plus compared to bulky smartwatch, for example
Redditdiscussion

My 6 Month Review Of Circular Ring 2

  • Health Readings & Insights-1 pts

    28.46.12 is giving me nearly nothing when it syncs, Heart Rate and a stress score.

  • Battery & Charging0 pts

    The upgraded server has dropped the battery to about half that, not even lasting a full 4 days.

  • App & Connectivity-1 pts

    some of the updates by Circular break the ring forcing reset after reset to get it working again.

View source ↗
28.46.12 is giving me nearly nothing when it syncs, Heart Rate and a stress score. The upgraded server has dropped the battery to about half that, not even lasting a full 4 days. some of the updates by Circular break the ring forcing reset after reset to get it working again.
YouTube
  • Battery & Charging-5 pts

    big issues worth knowing before committing your money—especially around syncing, app reliability, battery consistency, and overall user experience.

  • App & Connectivity-5 pts

    There are some great features, but also some big issues worth knowing before committing your money—especially around syncing, app reliability, battery consistency, and overall user experience.

big issues worth knowing before committing your money—especially around syncing, app reliability, battery consistency, and overall user experience. There are some great features, but also some big issues worth knowing before committing your money—especially around syncing, app reliability, battery consistency, and overall user experience.
Redditdiscussion

Handson Circular Ring 2

  • Comfort, Fit & Design-1 pts

    For me, it's bulky.

  • App & Connectivity-1 pts

    It is limited in its display options; you can't rearrange the circles, for example.

View source ↗
For me, it's bulky. It is limited in its display options; you can't rearrange the circles, for example.
Redditdiscussion

Circular Ring 2 Reviews

  • Comfort, Fit & Design-1 pts

    It is much bulkier than my Samsung Ring even though it is one size down.

View source ↗
It is much bulkier than my Samsung Ring even though it is one size down.
Redditdiscussion

My 6 Month Review Of Circular Ring 2

  • Comfort, Fit & Design-1 pts

    I used their online measuring system and it didnt fit right.

View source ↗
I used their online measuring system and it didnt fit right.
Redditdiscussion

Feedback On The Circular Ring 2

  • Subscription, Value & Support-1 pts

    I still haven't gotten a reply from their support

View source ↗
I still haven't gotten a reply from their support

What reviewers say, by topic

Tap a topic to read its quotes. Topic points add up to the Ranking Net Score.

Net positive 3

Net negative 3

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