Verified November 2, 2026

CIRCUL Ring 2 MAX

CIRCUL Ring 2 MAX focuses on continuous wellness monitoring with blood-pressure, oxygen, sleep, HRV, temperature, stress, and activity features in an adaptive-fit ring. It is best for shoppers who want broad iOS/Android tracking without a core subscription.

Illustrative AI render of CIRCUL Ring 2 MAX

Product type: blood-pressure and sleep-tracking smart ring

Specifications and details

BrandCIRCUL
Phone CompatibilityCompatible with iOS 12+ and Android 8.0+; integrates with Apple Health
Core Subscription RequiredNo monthly subscription; key features are included without recurring fees
Claimed Battery Life7 days
Water Resistance5 ATM water resistance; short-term immersion under 1 hour and 50 m class water resistance
Sensors and Tracking FeaturesSST Ultra 2.0 sensors with green, red, and infrared PPG LEDs; G-sensor accelerometer; high-precision temperature sensor; tracks heart rate, HRV, real-time blood oxygen, blood pressure, sleep, activity, stress, and temperature trends
Sizing MethodAdaptive sizing with XS, S, M, and L ranges covering approximately US size 4 to 18+; CIRCUL advises using the latest official size guide and offers one complimentary exchange within 30 days
Typical US List Price269 USD
Ring MaterialNon-allergenic 316L stainless steel with PVD coating
Model NameCIRCUL RING 2 MAX

Last verified: November 2, 2026

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Product information source: View official product page

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