Circular's new smart ring, the Ring 2, has an FDA-cleared AFib detection algorithm It can be sized using your smartphone, with no need for a plastic sizing kit Battery life runs for up to eight days, ...

After making waves at CES 2025, Circular is officially opening pre-orders for the Circular Ring 2, the brand's most advanced smart ring yet. This latest iteration brings a host of new features, ...

Circular, the fitness and health tracking startup making smart rings, has launched a new model. The Ring Slim (2024) is an upgraded version of the same ring that debuted in November 2023. It boasts ...

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Circular's Ring 2 gains a new ECG capability this time around, with heart health a bigger focus for the smart ring in 2025. The Circular Ring is a smart ring that offers fitness tracking capabilities ...

Advanced heart health features are becoming common in smart watches ever since the Apple Watch 4 added the ability to take an ECG (electrocardiogram) from your wrist on top of its other fitness ...

The Circular Smart Ring Slim's few good points are marred by design that's too easy to scratch and a companion app that needs to work on how it presents your data. When you compare it to apps from ...