do you wear a fitness watch/band/tracker? and do you rate them? find them useful? i see a lot of people wearing them these days so surely must be some people on here using them. i wear a garmin vivo active and use the HR monitor for when and if i'm doing any cycling. doesn't work for swimming much. also, do you log in your activity into MFP and eat back the calories burned from exercise? for example today i rode 20km light cycling, swimming for 20 mins in the pool with about 10 30sec on 15 sec off aquatic sprints and i've just logged in the cycling and swimming in MFP. comes out to be about 500 cals burned. i'm pretty modest with my entries for example if i did 45 mins i track it as 30 mins and if it was high intensity, i track it as moderate or even low intensity.