I have always used a foot pod even with GPS because it's been my understanding that if I lose GPS signal (I'm in the woods a lot) the foot pod will take over for distance until I get the signal back. Maybe I have that wrong but that's what I've been using it for. That, and cadence because I'm trying to increase my cadence.
But I am now using the new RD Pod which gives me cadence and I don't think I lose GPS much if at all with this new watch even on the woodsy trail. Is there any benefit to using the foot pod also? I've never really understood exactly which sensor some of my data is coming from. I don't even think I need the foot pod on the treadmill anymore because what the watch learns about my footsteps from running with GPS should give me distance data. Is that correct? This all gets pretty confusing to me.