CIRCUL RING
Circul Ring 2 MAX Trade-in Program
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Adaptive-Fit Design for 24/7 Comfort: 🔄 Revolutionary adaptive technology automatically adjusts to changes in finger size, ensuring accurate readings while maintaining a comfortable fit.
Fits multiple fingers, no sizing kits required.
- True Continuity · Real-Time · Professional-Grade Monitoring: 🩸Tracks heart rate, HRV, stress, and energy levels all day. Data updates every second. HRV metrics (SDNN, RMSSD) <5% deviation, offering long-term trend and recovery reference.
- Unique Heart Health Index 🌟Aggregates heart rate, HRV, and rhythm trends for a clear overview of heart state, supporting daily wellness insights.
- Professional-GradeSleep Apnea Risk Assessment: 💤 Monitors overnight blood oxygen fluctuations and provides personalized sleep apnea risk assessment (for wellness trend reference only). Calculates sleep debt and offers bedtime and nap reminders to support better sleep habits and recovery.
- AI-Powered Cuff‑Free BP monitoring：🩺Revolutionary cuff-free blood pressure monitoring with lab-grade accuracy. Validated through thousands of real-world tests for reliable tracking you can trust.(For research and innovation purposes only)
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Women’s Cycle Insights (Full Upgrade in 2026) 🌸
Phase 1 (2025): Basic cycle tracking (temperature + HRV + heart rate) with manual cycle logging.
Phase 2 (2026): Full-featured cycle monitoring — ovulation prediction, symptom logging, and personalized alerts.
- No Subscriptions, Extended Battery: 🔋 One-time purchase unlocks all features permanently. 7-day battery life, one week worry-free. Compatible with iOS/Android and Apple Health. 5 ATM water resistance.
- Professional Fitness Tracking: 🏃Real-time Exercise Heart Rate monitoring with customizable training goals. Accuracy matches chest-strap monitors. In 2026, “Plan + Reminders + Logging” will be added for professional-grade workout management.
- Health Tracking with OTA Updates: 📊 Monitors heart rate, HRV, Blood Oxygen, activity, stress, and temperature. OTA updates ensure latest features, while the app provides trend analysis and personalized insights.
“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
