My favorite Atomic is the GW2310. It wears better than my GW M5610. The 2310 also syncs better than the 5610.
Just curious where and when you acquired that beauty of a GW5600BCJ-1? I have 2 of them so I decided to add the unique combi bracelet to my positive display GW5600J-1. I wonder if I have the only one with a combi bracelet out there on a GW5600J-1?
I also own and like all three of these, though I'd probably rank the GW-6900 first, followed by the GW-5600J, then the GW-2310.I would have to go with GW6900, followed closely by GW2310.
I also liked GW5600J well enough to pick up the BCJ version of it as well.