The Science of Light: How Your Smartwatch Reads Your Heartbeat and Blood Oxygen

Published on Oct. 17, 2025, 1:21 p.m.

It’s a gesture repeated millions of times a day, a fleeting glance at the wrist. We check the time, dismiss a notification, or …

The Click vs. The Swipe: Why Physical Buttons on Wearables Aren’t Going Away

Published on Oct. 13, 2025, 9:34 a.m.

We live in a world of glass. Our phones, our car dashboards, our kitchen appliances—all have largely abandoned the humble physi…