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A Circular Ring Slim rests on a rock surface.

Credit: Circular
  • Circular has launched a new Ring Slim with an improved build and upgraded app experience called Kira Plus.
  • The new ring also features new algorithms for heart rate monitoring during sports and more advanced sleep tracking.
  • Many of the new software features should also be available to current users now or in the near future.

Today, Paris-based smart ring company Circular dropped a newly improved Ring Slim, an upgraded model of the brand’s thinnest offering. The wearable is very similar to the company’s existing device but improves on its predecessor with hardware upgrades, new features, and a revamped app experience.

Circular Kira Plus App Advanced Analysis