This sleek clamshell CDMA phone sports PTT, Bluetooth, and a hidden OLED outer display. Other features include an internal antenna, VGA camera, and speakerphone.

Oura's Ring 4 was a traditional smart ring, but Oura's patents show some incredible ideas that could pay off in the Ring 5.

This smaller, lighter upgrade to the V330 adds a memory card slot and music player, while bringing the antenna inside. Other key features include Bluetooth, EDGE high-speed data, VGA camera with ...