Physical Dimensions & Thickness: The AYN Odin 2 Mini has a horizontal bar chassis measuring 198 × 85.8 × 19.5 mm, while the Retroid Pocket 5 uses a horizontal bar chassis measuring 199.2 × 78.5 × 15.6 mm. In width, the AYN Odin 2 Mini is 1.2 mm (0.6%) narrower than the Retroid Pocket 5. In height, the AYN Odin 2 Mini is 7.3 mm (9.3%) taller than the Retroid Pocket 5. In chassis thickness (depth), the AYN Odin 2 Mini is 3.9 mm (25%) thicker than the Retroid Pocket 5 (19.5 mm vs 15.6 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 Mini occupies 16,988 mm² (169.9 cm²), compared to 15,637 mm² (156.4 cm²) for the Retroid Pocket 5—a footprint difference of 1,351 mm² (8.6%). On the scale, the AYN Odin 2 Mini weighs 320g versus 280g for the Retroid Pocket 5, representing a 40g (14.3%) weight difference (Retroid Pocket 5 is lighter).
4:3 vs 16:9 Effective Viewable Screen Size: For classic 4:3 retro games (PS1, SNES, N64, Dreamcast), the AYN Odin 2 Mini's 5" (16:9) panel yields a 4.09" effective diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)), while the Retroid Pocket 5'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 Retroid Pocket 5 a 0.4" larger active 4:3 diagonal (21% more active display area). For 16:9 widescreen content (PSP, Switch, streaming), the AYN Odin 2 Mini delivers a 5" effective diagonal (100% screen usage) versus 5.5" (100% screen usage) on the Retroid Pocket 5, making the Retroid Pocket 5 larger by 0.5" (+21% active 16:9 area).