This may have been discussed a bunch already, but I couldn't find a good answer elsewhere, and I didn't find a thread about it so I figured I'd ask (if there's another thread about this already feel free to link it, thanks in advance). Anyway, I'm just curious as to what needs to happen when I'm out for a walk for the watch to count it all as exercise. I've had some issues where it won't count the entire walk, just parts. I figure it's something heart rate related, so if that's the case, I'm curious as to what the target heart rate for activities would be.