I have this omron pedometer HJ-105 (the lil blue one). I use this now for a few days regularly. I meterd/caliberated it according to the manual. I see that I did 1.5 miles today in 20 mins in the park and I was so shocked because it always seemed like 1.5 miles would be too much (may be just my feeling). Or it felt like much more exrcise when I did treadmill for 20 mins in the gym compared to running outdoors in the park today.

I just wanted to know if the pedometers are very reliable to count miles and steps so that I can feel as good as I am after looking at my miles history on it...