Smartwatches have become the go‑to health gadget for millions of Americans, promising to track everything from steps to sleep to heart rhythms. But cardiologists warn that these devices—while helpful—aren’t foolproof. Many people assume their watch will alert them to every irregular heartbeat, yet early smartwatch heart‑rhythm problems often slip through the cracks. Here are seven things doctors really wiush that patients would understand about how much information your smartwatch actually gives you.
