Physical Dimensions & Thickness: The AYN Odin 2 Mini has a horizontal bar chassis measuring 198 × 85.8 × 19.5 mm, while the Retroid Pocket 4 Pro uses a horizontal bar chassis measuring 184.8 × 82.6 × 15.8 mm. In width, the AYN Odin 2 Mini is 13.2 mm (7.1%) wider than the Retroid Pocket 4 Pro. In height, the AYN Odin 2 Mini is 3.2 mm (3.9%) taller than the Retroid Pocket 4 Pro. In chassis thickness (depth), the AYN Odin 2 Mini is 3.7 mm (23.4%) thicker than the Retroid Pocket 4 Pro (19.5 mm vs 15.8 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the AYN Odin 2 Mini occupies 16,988 mm² (169.9 cm²), compared to 15,264 mm² (152.6 cm²) for the Retroid Pocket 4 Pro—a footprint difference of 1,724 mm² (11.3%). On the scale, the AYN Odin 2 Mini weighs 320g versus 261g for the Retroid Pocket 4 Pro, representing a 59g (22.6%) weight difference (Retroid Pocket 4 Pro 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 4 Pro's 4.7" (16:9) panel yields a 3.84" effective diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)). This gives the AYN Odin 2 Mini a 0.25" larger active 4:3 diagonal (13.2% 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 4.7" (100% screen usage) on the Retroid Pocket 4 Pro, making the AYN Odin 2 Mini larger by 0.3" (+13.2% active 16:9 area).
