Physical Dimensions & Thickness: The AYN Odin 2 Mini has a horizontal bar chassis measuring 198 × 85.8 × 19.5 mm, while the AYN Odin 3 uses a horizontal bar chassis measuring 224.8 × 87.5 × 16.6 mm. In width, the AYN Odin 2 Mini is 26.8 mm (11.9%) narrower than the AYN Odin 3. In height, the AYN Odin 2 Mini is 1.7 mm (1.9%) shorter than the AYN Odin 3. In chassis thickness (depth), the AYN Odin 2 Mini is 2.9 mm (17.5%) thicker than the AYN Odin 3 (19.5 mm vs 16.6 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 Mini occupies 16,988 mm² (169.9 cm²), compared to 19,670 mm² (196.7 cm²) for the AYN Odin 3—a footprint difference of 2,682 mm² (13.6%). On the scale, the AYN Odin 2 Mini weighs 320g versus 390g for the AYN Odin 3, representing a 70g (17.9%) weight difference (AYN Odin 2 Mini 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 AYN Odin 3'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)). This gives the AYN Odin 3 a 0.81" larger active 4:3 diagonal (44% 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 6" (100% screen usage) on the AYN Odin 3, making the AYN Odin 3 larger by 1" (+44% active 16:9 area).