The $225 Pebble Time 2 pairs quirky watch faces and apps with physical buttons, an e-paper display, weeks of battery life, and a playful hacker spirit.

The lawsuit alleges that Oura rings are unable to measure any of the physiological signals needed to assess sleep quality or determine sleep stages.

Linkdaze's smart digital calendar stands out for not putting its features behind a paywall, including an AI meal planner tool.