Sport watches.

Combination of two tings: I used to think that wearing a watch was irrelevant because I could always see the time in my phone. And I did not want to have an app knowing how many steps I take.

What changed a few years ago: I stopped having a phone on me most of the time, so a watch became extremely handy for knowing what time it is, and I found out that Garmin watches work perfectly well without an app. So, now, I really like my watch. I am considering getting a fancier one with solar charging, and I even got a chest strap to improve measurement accuracy while running.