If you like to measure a lot more than just your run, think about getting a fitness watch, fitness tracker.
I don’t have one at the moment but hada a fitbit once, a friend of mine loves her Garmin watch. My mom loves her fitness tracker from Garmin too, but it is just a basic one to count her steps. Since the tracker and watches are different, first of all know what you want (tracker for running, hiking, etc) what like to track (steps, heartrate, distance, etc..), and then choose a watch.
Did you know that the recommended steps we should make in a day to be on a healthy level are 10.000? Do you know how many steps you are doing every day? I know when I work a lot at the lap top, and don’t get out, I only have about 300 steps on my watch (I tracked my steps for a year once)…crazy!!