Physical Dimensions & Thickness: The AYN Odin 2 has a horizontal bar chassis measuring 225 × 98 × 17 mm, while the Retroid Pocket Nova uses a horizontal bar chassis measuring 169.9 × 84.1 × 15.6 mm. In width, the AYN Odin 2 is 55.1 mm (32.4%) wider than the Retroid Pocket Nova. In height, the AYN Odin 2 is 13.9 mm (16.5%) taller than the Retroid Pocket Nova. In chassis thickness (depth), the AYN Odin 2 is 1.4 mm (9%) thicker than the Retroid Pocket Nova (17 mm vs 15.6 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 occupies 22,050 mm² (220.5 cm²), compared to 14,289 mm² (142.9 cm²) for the Retroid Pocket Nova—a footprint difference of 7,761 mm² (54.3%). On the scale, the AYN Odin 2 weighs 420g versus 255g for the Retroid Pocket Nova, representing a 165g (64.7%) weight difference (Retroid Pocket Nova 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 Nova's 4.5" (4:3) panel yields a 4.5" effective diagonal (100% full screen without black bars (native 4:3)). This gives the AYN Odin 2 a 0.4" larger active 4:3 diagonal (18.7% 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 4.13" (75% screen usage) on the Retroid Pocket Nova, making the AYN Odin 2 larger by 1.87" (+111% active 16:9 area).