The Apple Watch is a nice little device, and it’s known to have motivated even lazy people into taking better care of themselves through the “gamification” of exercise. However, it can happen that the Workout app doesn’t properly track exercise minutes (and, to a lesser extent, burned calories), and while Apple provides an official checklist for improving workout calibration, sometimes the issues persist. TL;DR: If you wear the Watch low on your arm, move it higher. Seriously, that fixed it for me. One very peculiar problem I had myself was that indoor walking workouts were not always being recorded properly: calories mostly worked, but I could walk half an hour and yet only a few minutes would be recorded as exercise, even if I walked fast. (Yes, I do walk around he house when it’s too cold to do so outside; a book or a friend on the phone are…