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Tom’s Guide
Tom’s Guide
Technology
Dan Bracaglia

The Circular Ring 2 is here and it beats the Oura Ring in two big ways

Circular Oura Samsung FDA
The Circular Ring 2, up close, with half of the device slightly obstructed by orange glass in the foreground.

Just in time for CES 2025, Circular has lifted the curtain to reveal the new Circular Ring 2, a completely redesigned smart ring that offers two key features that no other smart ring, including the Oura Ring, can match. These include on-finger ECG readings with FDA-cleared atrial fibrillation (AFib) detection and a potentially revolutionary new digital sizing process.

The Circular Ring 2 is set to arrive in four finishes this spring boasting specs and a starting price comparable to the best smart rings available in 2025. Here's everything you need to know about the new Circular Ring 2.

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