Circular · ring

Circular Ring 2

The Circular Ring 2 is a standout in the smart ring category thanks to its built-in ECG sensor — a first for rings. It also tracks HRV, SpO2, and skin temperature with no subscription required. Ideal for health-conscious users who want ECG capability without wearing a watch.

ECG CapabilityNo Subscription

€349

3.8(0)

Buy on Amazon Circular Shop

Specifications

Battery8 days

Water5ATM

DisplayNone

SensorsHRV, SpO2, ECG, Skin Temperature

Features

Sleep Tracking

Sleep staging and sleep quality insights

HRV Monitoring

Continuous HRV tracking with daily score

SpO2

Blood oxygen monitoring

ECG

Built-in ECG sensor — a first for smart rings

GPS

No built-in GPS

Step Counting

Daily step and activity tracking

Stress Tracking

Stress monitoring via HRV analysis

Workout Detection

Automatic activity detection

Smart Notifications

Not available — no display

Menstrual Tracking

Cycle tracking via skin temperature trends

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