Originally launched at $399, the Samsung Galaxy Ring is also one of the priciest smart rings you can buy. Fortunately, Amazon ...

The rings' other main differences are small, but worth noting if you're a true fitness fanatic. For instance, the Samsung ...

French upstart Circular has unveiled a fresh challenge to Oura — the current lord of the smart rings. Circular has just released a new smart ring that offers two key advantages over Oura ...