Physical Dimensions & Thickness: The Anbernic RG Cube has a 1:1 square chassis measuring 153 × 86.3 × 18 mm, while the AYN Odin 3 uses a horizontal bar chassis measuring 224.8 × 87.5 × 16.6 mm. In width, the Anbernic RG Cube is 71.8 mm (31.9%) narrower than the AYN Odin 3. In height, the Anbernic RG Cube is 1.2 mm (1.4%) shorter than the AYN Odin 3. In chassis thickness (depth), the Anbernic RG Cube is 1.4 mm (8.4%) thicker than the AYN Odin 3 (18 mm vs 16.6 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the Anbernic RG Cube occupies 13,204 mm² (132 cm²), compared to 19,670 mm² (196.7 cm²) for the AYN Odin 3—a footprint difference of 6,466 mm² (32.9%). On the scale, the Anbernic RG Cube weighs 256g versus 390g for the AYN Odin 3, representing a 134g (34.4%) weight difference (Anbernic RG Cube is lighter).
4:3 vs 16:9 Effective Viewable Screen Size: For classic 4:3 retro games (PS1, SNES, N64, Dreamcast), the Anbernic RG Cube's 3.95" (1:1) panel yields a 3.49" effective diagonal (75% active screen area with horizontal letterbox bars on top and bottom (native 1:1)), 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 1.41" larger active 4:3 diagonal (97.2% more active display area). For 16:9 widescreen content (PSP, Switch, streaming), the Anbernic RG Cube delivers a 3.2" effective diagonal (56% screen usage) versus 6" (100% screen usage) on the AYN Odin 3, making the AYN Odin 3 larger by 2.8" (+250.5% active 16:9 area).