HardKernel Odroid Go Advance vs Retroid Pocket Duo: size comparison

The Retroid Pocket Duo is 7 mm wider, 23.5 mm taller, 2.4 mm thicker, 180 g heavier than the HardKernel Odroid Go Advance, with a front footprint about 39% larger. Screens: 5.5″ vs 3.5″.