Physical Dimensions & Thickness: The ASUS ROG Ally X has a horizontal bar chassis measuring 280.2 × 114 × 36.9 mm, while the TrimUI Brick uses a vertical (game boy style) chassis measuring 73.2 × 109.9 × 11.8 mm. In width, the ASUS ROG Ally X is 207 mm (282.8%) wider than the TrimUI Brick. In height, the ASUS ROG Ally X is 4.1 mm (3.7%) taller than the TrimUI Brick. In chassis thickness (depth), the ASUS ROG Ally X is 25.1 mm (212.7%) thicker than the TrimUI Brick (36.9 mm vs 11.8 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the ASUS ROG Ally X occupies 31,943 mm² (319.4 cm²), compared to 8,045 mm² (80.5 cm²) for the TrimUI Brick—a footprint difference of 23,898 mm² (297.1%). On the scale, the ASUS ROG Ally X weighs 678g versus 159g for the TrimUI Brick, representing a 519g (326.4%) weight difference (TrimUI Brick is lighter).
4:3 vs 16:9 Effective Viewable Screen Size: For classic 4:3 retro games (PS1, SNES, N64, Dreamcast), the ASUS ROG Ally X's 7" (16:9) panel yields a 5.72" effective diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)), while the TrimUI Brick's 3.2" (4:3) panel yields a 3.2" effective diagonal (100% full screen without black bars (native 4:3)). This gives the ASUS ROG Ally X a 2.52" larger active 4:3 diagonal (219.5% more active display area). For 16:9 widescreen content (PSP, Switch, streaming), the ASUS ROG Ally X delivers a 7" effective diagonal (100% screen usage) versus 2.94" (75% screen usage) on the TrimUI Brick, making the ASUS ROG Ally X larger by 4.06" (+468% active 16:9 area).