Running with that device, and after sport quickly get a real watch on your wrist. It is not a problem to wear a sport device on a wrist, look me with a quartz watch. So, as a WIS i would not wear a smart device. See me as a core freak who only play false ...
That’s not really a watch. It’s on mini-computer on a watch strap. Then again, being an analytical guy, it provides my running data, which a mechanical piece wouldn’t be able to do without a lot of additional manual work!