It's not a smart ring, it's a watch - one that packs many of the same features as traditional G-Shock watches. And those three side buttons aren't merely decorative.

Casio's new G-Shock has all the hallmarks that have made it one of the most beloved names in watchmaking. Just one thing ...

Unlike most rings, Casio's G-Shock Nano DWN-5600 is one-size-fits-all, thanks to its adjustable strap. Look for it in Japan ...

Welcome to the Esquire Endorsement. Heavily researched. Thoroughly vetted. These picks are the best way to spend your hard-earned cash. While skeptics saw it and said, "Pfft, yeah right," Casio really ...