Improved health sensors, a new touch bezel that helps navigate apps, optional cellular and ECG functions that aren't FDA-cleared (yet). Here's a look at all versions.
Samsung's newest smartwatch, the Galaxy Watch Active 2, arrives September 27. It adds an ECG that will eventually work to measure heart arrhythmia like the Apple Watch Series 4, comes in two sizes, adds a touch bezel to swipe between apps, and has optional LTE.