Tech Garmin Question

Feb 3, 2014
Yokohama-shi, Kanagawa, Japan
It's been sometime since I have posted on this forum, but I have a question that now requires TCC expertise. So I've been riding for about a year and a half using my phone to record my rides through Strava. It has worked well so far with minimal issues (like having to charge my phone midway on 150km+ rides). However I have noticed that the auto-stop function takes 10 seconds to kick in after you come to a full stop. Therefore, I think I am losing a lot of time on my rides due to this feature.

Long story short, I think it's time to get a Garmin. Looking at the edge 520, but just wondering what the difference is between a standard 520 and 520J. Is the J version necessary for use in Japan or can I order a 520 overseas and still use in Japan?

Thanks in advance for your input.