Physical Dimensions & Thickness: The ASUS ROG Ally has a horizontal bar chassis measuring 280 × 113 × 39 mm, while the Retroid Pocket Mini uses a horizontal bar chassis measuring 165.28 × 77.62 × 16.5 mm. In width, the ASUS ROG Ally is 114.72 mm (69.4%) wider than the Retroid Pocket Mini. In height, the ASUS ROG Ally is 35.38 mm (45.6%) taller than the Retroid Pocket Mini. In chassis thickness (depth), the ASUS ROG Ally is 22.5 mm (136.4%) thicker than the Retroid Pocket Mini (39 mm vs 16.5 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the ASUS ROG Ally occupies 31,640 mm² (316.4 cm²), compared to 12,829 mm² (128.3 cm²) for the Retroid Pocket Mini—a footprint difference of 18,811 mm² (146.6%). On the scale, the ASUS ROG Ally weighs 608g versus 215g for the Retroid Pocket Mini, representing a 393g (182.8%) weight difference (Retroid Pocket Mini 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 Mini's 3.7" (4:3) panel yields a 3.7" effective diagonal (100% full screen without black bars (native 4:3)). This gives the ASUS ROG Ally a 2.02" larger active 4:3 diagonal (139% 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 3.4" (75% screen usage) on the Retroid Pocket Mini, making the ASUS ROG Ally larger by 3.6" (+324.8% active 16:9 area).
