The Oura Ring 4 comes in four colors: Midnight (dark blue), Cloud (white), Tide (light teal), and Petal (light pink). The ...
The Circular Ring 2 undercuts the Oura with a lower price and no subscription fees, but it achieves this by taking some questionable shortcuts.
The Circular Ring 2 is a new smart ring with no subscription, but how does it stack up against the competition?
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