The update, June 7 -- The Samsung Health app has spent years accumulating data. Heart rate here, sleep score there, a stress graph nobody checks after the first week. Starting June 8, Samsung is trying something structurally different: a system that decides, on your behalf, when any of it actually matters.

heart rate, heart rate variability, respiratory rate, skin temperature, and blood oxygen - and compares each against what it determines to be the user's true resting baseline. The key word in Samsung's announcement is "meaningful." The system sends a notification only when it detects meaningful deviation, not just any deviation. The intent, the company says, is to distinguish between data and signal.

That distinction is worth sitting ...