Physical Dimensions & Thickness: The ASUS ROG Ally has a horizontal bar chassis measuring 280 × 113 × 39 mm, while the Retroid Pocket 6 uses a horizontal bar chassis measuring 205.5 × 80.5 × 17.2 mm. In width, the ASUS ROG Ally is 74.5 mm (36.3%) wider than the Retroid Pocket 6. In height, the ASUS ROG Ally is 32.5 mm (40.4%) taller than the Retroid Pocket 6. In chassis thickness (depth), the ASUS ROG Ally is 21.8 mm (126.7%) thicker than the Retroid Pocket 6 (39 mm vs 17.2 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the ASUS ROG Ally occupies 31,640 mm² (316.4 cm²), compared to 16,543 mm² (165.4 cm²) for the Retroid Pocket 6—a footprint difference of 15,097 mm² (91.3%). On the scale, the ASUS ROG Ally weighs 608g versus 200g for the Retroid Pocket 6, representing a 408g (204%) weight difference (Retroid Pocket 6 is lighter).
4:3 vs 16:9 Effective Viewable Screen Size: For classic 4:3 retro games (PS1, SNES, N64, Dreamcast), the ASUS ROG Ally's 7" (16:9) panel yields a 5.72" effective diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)), while the Retroid Pocket 6's 5.5" (16:9) panel yields a 4.49" effective diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)). This gives the ASUS ROG Ally a 1.23" larger active 4:3 diagonal (62% more active display area). For 16:9 widescreen content (PSP, Switch, streaming), the ASUS ROG Ally delivers a 7" effective diagonal (100% screen usage) versus 5.5" (100% screen usage) on the Retroid Pocket 6, making the ASUS ROG Ally larger by 1.5" (+62% active 16:9 area).