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Latest
7 min read
5 Best Sleep Tracking Devices of 2026: Which One is Worth Your Money?
March 11, 2026
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Circular Ring 2 vs RingConn Gen 2: Which Smart Ring Is Better?
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5 Best Sleep Tracking Devices of 2026: Which One is Worth Your Money?
March 11, 2026
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Activity
Sleep
Product updates
7 min read
5 Best Sleep Tracking Devices of 2026: Which One is Worth Your Money?
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Circular Ring 2 vs RingConn Gen 2: Which Smart Ring Is Better?
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News
2 min read
The Circular Ring 2 Kickstarter Campaign Is Live – A New Era for Personalized Health
March 14, 2025
News
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How to Use Your HSA or FSA to Purchase the Circular Ring
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Discover the New Coherence Breathing Circle in the Circular Ring
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Expert
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NBA Star Clint Capela Joins the Circular Tribe
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Stress Levels Tracking: Your Path to Inner Peace
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Activity
3 min read
Rested Heart Rate (RHR): What Increases and Decreases it ?
September 20, 2019
Activity
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What is blood oxygenation level or blood saturation (SpO2): Uses and More
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How Circular tracks your Resting Heart Rate (RHR) and how to use it?
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Activity
5 min read
How to use Heart Rate Variability (HRV)
August 23, 2019
Activity
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What increases and decreases Heart Rate Variability (HRV)?
August 23, 2019
Activity
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Continuous Heart Rate monitor
August 11, 2019
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6 / 7
Sleep
3 min read
The architecture of your sleep. Basics n°4 about sleep
August 23, 2019
Sleep
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The sleep stages that compose your sleep cycle. Basics n°3 about sleep
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Sleep
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Your personal sleep cycle. Basics n°2 about sleep
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Sleep
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Better sleep, the key to your problems. Basics n°1 about sleep
August 10, 2019
Previous
7 / 7
3 min read
Circular Ring 2 Release Notes (Sep 2025): Dedicated Sync Architecture, Faster Data Transfer & Sleep Tracking Improvements
September 30, 2025
News
2 min read
Why ECG is a Game Changer in Circular Ring 2 — And How to Use It Right
March 26, 2025
News
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How to Use Your HSA or FSA to Purchase the Circular Ring
August 27, 2024
News
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Explore Your Health Like Never Before with the Advanced Analytics Circle
June 4, 2024
News
2 min read
Unleash Your Potential with the New Sport Session Circle
May 28, 2024
News
3 min read
Introducing the Medication Reminder Feature in Circular: A Leap Towards a Complete Wellness Ecosystem
February 29, 2024
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