Physical Dimensions & Thickness: The AYN Odin 2 has a horizontal bar chassis measuring 225 × 98 × 17 mm, while the Miyoo A30 uses a horizontal bar chassis measuring 127.5 × 57 × 16 mm. In width, the AYN Odin 2 is 97.5 mm (76.5%) wider than the Miyoo A30. In height, the AYN Odin 2 is 41 mm (71.9%) taller than the Miyoo A30. In chassis thickness (depth), the AYN Odin 2 is 1 mm (6.3%) thicker than the Miyoo A30 (17 mm vs 16 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 occupies 22,050 mm² (220.5 cm²), compared to 7,268 mm² (72.7 cm²) for the Miyoo A30—a footprint difference of 14,782 mm² (203.4%). On the scale, the AYN Odin 2 weighs 420g versus 115g for the Miyoo A30, representing a 305g (265.2%) weight difference (Miyoo A30 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 Miyoo A30's 2.8" (4:3) panel yields a 2.8" effective diagonal (100% full screen without black bars (native 4:3)). This gives the AYN Odin 2 a 2.1" larger active 4:3 diagonal (206.5% 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 2.57" (75% screen usage) on the Miyoo A30, making the AYN Odin 2 larger by 3.43" (+445% active 16:9 area).