Close
Shop
Circular Ring 2
Circular Ring 2
Glasses
Glasses
Sleep Mask
Sleep Mask
Circular Charger
Circular Charger
USB-C Cable
USB-C Cable
SIzing Kit
SIzing Kit
About
Features
Features
Sleep
Sleep
Activity
Activiy
Heart Rate
Heart Rate
Company
Track your Package
Track your Package
Learn
Learn
HSA/FSA
HSA/FSA
Science
Science
Professionals
Professionals
Get access to Circular 2's lowest price
ever
Features
For Professionals
Shop
Shop
Your cart
×
Your cart is empty
Continue Shopping
0
Your cart
×
Your cart is empty
Continue Shopping
0
Features
For Professionals
Shop
Shop
Your cart
×
Your cart is empty
Continue Shopping
0
Welcome to our resources page
Find updated material to make the most out of Circular
Search
Latest
7 min read
5 Best Sleep Tracking Devices of 2026: Which One is Worth Your Money?
March 11, 2026
6 min read
Circular Ring 2 vs RingConn Gen 2: Which Smart Ring Is Better?
March 6, 2026
7 min read
5 Best Sleep Tracking Devices of 2026: Which One is Worth Your Money?
March 11, 2026
By Category
All
Popular
Activity
Sleep
Product updates
7 min read
5 Best Sleep Tracking Devices of 2026: Which One is Worth Your Money?
March 11, 2026
6 min read
Circular Ring 2 vs RingConn Gen 2: Which Smart Ring Is Better?
March 6, 2026
10 min read
6 Best Ways to Track Your Menstrual Cycle (With Pros and Cons)
February 23, 2026
6 min read
4 Best Health Trackers to Wear with a Classic Watch
February 18, 2026
12 min read
21 Gifts for Your Wife: Best Options for Every Type of Woman
February 6, 2026
10 min read
How to Recover From Burnout: 10 Proven Strategies to Feel Like Yourself Again
February 3, 2026
Next
1 / 19
Expert
3 min
Bio-hacking Best Practices from Coach Siim Land
February 25, 2020
News
1 min read
Circular is on Product Hunt!
October 2, 2019
Sleep
2 min read
Recover when you don't get enough sleep (in a healthy way)
September 24, 2019
Activity
5 min read
How to use Heart Rate Variability (HRV)
August 23, 2019
Sleep
1 min read
Your personal sleep cycle. Basics n°2 about sleep
August 11, 2019
Sleep
2 min read
Better sleep, the key to your problems. Basics n°1 about sleep
August 10, 2019
Previous
4 / 4
News
3 min read
Stress Levels Tracking: Your Path to Inner Peace
October 18, 2023
News
3 min read
Introducing Kira+: The Most Sophisticated Personalized Wellness AI Powered by Circular
July 20, 2023
Expert
5 min read
Leaderboard Winner Interview (Audrey C.) - October 2022
December 13, 2022
Activity
1 min read
How Circular tracks your Active minutes, Cardio points, Activity Volume, and Recovery
November 25, 2022
Activity
1 min read
Circular’s calories burned
November 25, 2022
Activity
1 min read
Circular’s walking equivalency & steps counter
November 25, 2022
Next
1 / 7
Sleep
2 min read
Beat Sleep Inertia and Wake Up Alert: How Circular's Smart Alarm and Wake-Up Score Revolutionize Mornings
March 8, 2024
News
3 min read
Stress Levels Tracking: Your Path to Inner Peace
October 18, 2023
Sleep
3 min read
What is the Circular® Sleep quality score and how it is calculated
August 20, 2023
Sleep
1 min read
What is the Circular® Wake up score and how it is calculated
August 3, 2023
Sleep
1 min read
Circular® smart snooze: Embrace Circular's Smart Snooze Feature for Energized Mornings
August 1, 2023
Sleep
3 min
Unveiling Sleep Secrets: Decoding Your Heart Rate Trend During Sleep with Circular Ring
July 28, 2023
Next
1 / 7
News
3 min read
Introducing the latest upgrades to Circular Ring: Green LED and Improved Peak Detection Algorithm
May 22, 2023
News
5 min read
Major Product Upgrade 1
March 16, 2023
News
3 min read
New release: Guided Breathing Exercises Circle
October 12, 2022
News
2 min read
The Circular® Global Score, Leaderboard and Streak score
October 12, 2022
News
2 min read
Circular Delivery Update #2
June 10, 2022
News
2 min read
Circular Delivery Update #1
May 25, 2022
Previous
Next
3 / 4
Get the latest articles