Physical Dimensions & Thickness: The AYN Odin 2 Mini has a horizontal bar chassis measuring 198 × 85.8 × 19.5 mm, while the Miyoo Mini Plus uses a vertical (game boy style) chassis measuring 78.5 × 108 × 22.3 mm. In width, the AYN Odin 2 Mini is 119.5 mm (152.2%) wider than the Miyoo Mini Plus. In height, the AYN Odin 2 Mini is 22.2 mm (20.6%) shorter than the Miyoo Mini Plus. In chassis thickness (depth), the AYN Odin 2 Mini is 2.8 mm (12.6%) slimmer than the Miyoo Mini Plus (19.5 mm vs 22.3 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 Mini occupies 16,988 mm² (169.9 cm²), compared to 8,478 mm² (84.8 cm²) for the Miyoo Mini Plus—a footprint difference of 8,510 mm² (100.4%). On the scale, the AYN Odin 2 Mini weighs 320g versus 162g for the Miyoo Mini Plus, representing a 158g (97.5%) weight difference (Miyoo Mini Plus 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 Miyoo Mini Plus's 3.5" (4:3) panel yields a 3.5" effective diagonal (100% full screen without black bars (native 4:3)). This gives the AYN Odin 2 Mini a 0.59" larger active 4:3 diagonal (36.2% 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 3.21" (75% screen usage) on the Miyoo Mini Plus, making the AYN Odin 2 Mini larger by 1.79" (+142.2% active 16:9 area).