Circular is adding the first FDA-approved ECG into its next-gen smart ring, but it had to cut a signature tool to make it fit ...

Each ring featured a band or gem that would change color, with each shade linked to a specific mood. Green was the baseline, indicating a neutral mood, while blue meant the wearer was emotionally ...

But beyond their alluring aesthetic, what do the colors of a mood ring truly signify? In this comprehensive exploration, ...