CIRCUL RING
サーキュラーリング
✅ 医療グレードのモニタリングを指先で
✅ 適応サイズで快適な装着感
✅ 24時間365日秒単位のリアルタイムトラッキング
✅ 総合的な健康インサイトとアラート
“Thank you for being part of our journey — upgrade for a better experience.”
Upgrade to MAX. Your loyalty deserves more. For the new. For the loyal.
This exclusive upgrade program welcomes:
- Current Circul Ring 2 owners with valid purchase verification;
- Required documentation: Original order number, registered email, and device serial number (SN);
- Accepted purchase channels: Indiegogo, Amazon, and official CIRCUL website;
- Purchase timeline: Only Ring 2 devices ordered before December 1st, 2025 (Ring 2 MAX official launch date);
- Special provision: Ring 2 MAX pre-order customers can still join by contacting CIRCUL support during the campaign period
Program Timeline
- Launch Date: December 1st, 2025
- Duration: 3-month promotional window from launch
Upgrade Benefits
- Exclusive Discount: 50% off Ring 2 MAX retail priceStandard Ring 2 MAX price: $269Your trade-in price: $134.50
- Important Note: This trade-in offer is standalone and cannot be stacked with other promotions, bundles, or discount codes
Please note: The sizing for Circul Ring 2 MAX has been updated.
Be sure to check the latest Size Guide before placing your order.
How to Choose Your Size
(Note: If your size falls between two numbers, choose the larger size for a looser fit or the smaller size for a snugger fit.)
Step1
Take a length of floss or string and wrap it around the base of your finger.

Step2
Mark where the floss or string first overlaps with a pen.

Step3
Stretch the length of string out along a ruler or measuring tape, and take down the length in millimeters

Step4
The length you measured is the circumference of your finger, compare the circumference of your finger the following table.

