Smartwatches and other wearable fitness trackers are everywhere—and they’re doing way more than counting steps. These devices now track heart rate variability (HRV), flag irregular heart rhythms, and even record single-lead ECGs. Cool, right? But what happens when a patient walks in with their wrist buzzing and a bunch of data they want us to interpret? Let’s dive into the world of wearables and what they mean for us as healthcare providers!