Size: GH3 vs. Pentax K-5_

Interesting comparison. I'm more sensitive to weight then size. At half a pound less, the GH3 would be much more comfortable around my neck then the K-5. I've found the accessory grip a necessity with the OM-D, which has made that larger. But everyone's hands, and requirements, are different.
--
http://www.ronhartman.net