Physical Dimensions & Thickness: The AYN Odin 2 Mini has a horizontal bar chassis measuring 198 × 85.8 × 19.5 mm, while the Retroid Pocket Classic uses a vertical (game boy style) chassis measuring 89.9 × 138 × 26 mm. In width, the AYN Odin 2 Mini is 108.1 mm (120.2%) wider than the Retroid Pocket Classic. In height, the AYN Odin 2 Mini is 52.2 mm (37.8%) shorter than the Retroid Pocket Classic. In chassis thickness (depth), the AYN Odin 2 Mini is 6.5 mm (25%) slimmer than the Retroid Pocket Classic (19.5 mm vs 26 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 Mini occupies 16,988 mm² (169.9 cm²), compared to 12,406 mm² (124.1 cm²) for the Retroid Pocket Classic—a footprint difference of 4,582 mm² (36.9%). On the scale, the AYN Odin 2 Mini weighs 320g versus 223g for the Retroid Pocket Classic, representing a 97g (43.5%) weight difference (Retroid Pocket Classic 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 Classic's 3.92" (31:27) panel yields a 3.69" effective diagonal (86% active screen area with horizontal letterbox bars on top and bottom (native 31:27)). This gives the AYN Odin 2 Mini a 0.4" larger active 4:3 diagonal (22.3% 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 3.39" (65% screen usage) on the Retroid Pocket Classic, making the AYN Odin 2 Mini larger by 1.61" (+117.3% active 16:9 area).