Physical Dimensions & Thickness: The Anbernic RG Cube has a 1:1 square chassis measuring 153 × 86.3 × 18 mm, while the Retroid Pocket 5 uses a horizontal bar chassis measuring 199.2 × 78.5 × 15.6 mm. In width, the Anbernic RG Cube is 46.2 mm (23.2%) narrower than the Retroid Pocket 5. In height, the Anbernic RG Cube is 7.8 mm (9.9%) taller than the Retroid Pocket 5. In chassis thickness (depth), the Anbernic RG Cube is 2.4 mm (15.4%) thicker than the Retroid Pocket 5 (18 mm vs 15.6 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the Anbernic RG Cube occupies 13,204 mm² (132 cm²), compared to 15,637 mm² (156.4 cm²) for the Retroid Pocket 5—a footprint difference of 2,433 mm² (15.6%). On the scale, the Anbernic RG Cube weighs 256g versus 280g for the Retroid Pocket 5, representing a 24g (8.6%) 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 Retroid Pocket 5's 5.5" (16:9) panel yields a 4.49" effective diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)). This gives the Retroid Pocket 5 a 1" larger active 4:3 diagonal (65.7% 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 5.5" (100% screen usage) on the Retroid Pocket 5, making the Retroid Pocket 5 larger by 2.3" (+194.6% active 16:9 area).