Physical Dimensions & Thickness: The AYN Odin 2 has a horizontal bar chassis measuring 225 × 98 × 17 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 is 135.1 mm (150.3%) wider than the Retroid Pocket Classic. In height, the AYN Odin 2 is 40 mm (29%) shorter than the Retroid Pocket Classic. In chassis thickness (depth), the AYN Odin 2 is 9 mm (34.6%) slimmer than the Retroid Pocket Classic (17 mm vs 26 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 occupies 22,050 mm² (220.5 cm²), compared to 12,406 mm² (124.1 cm²) for the Retroid Pocket Classic—a footprint difference of 9,644 mm² (77.7%). On the scale, the AYN Odin 2 weighs 420g versus 223g for the Retroid Pocket Classic, representing a 197g (88.3%) 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's 6" (16:9) panel yields a 4.9" 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 a 1.21" larger active 4:3 diagonal (76% more active display area). For 16:9 widescreen content (PSP, Switch, streaming), the AYN Odin 2 delivers a 6" effective diagonal (100% screen usage) versus 3.39" (65% screen usage) on the Retroid Pocket Classic, making the AYN Odin 2 larger by 2.61" (+213% active 16:9 area).