Physical Dimensions & Thickness: The ASUS ROG Ally has a horizontal bar chassis measuring 280 × 113 × 39 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 is 206.8 mm (282.5%) wider than the TrimUI Brick. In height, the ASUS ROG Ally is 3.1 mm (2.8%) taller than the TrimUI Brick. In chassis thickness (depth), the ASUS ROG Ally is 27.2 mm (230.5%) thicker than the TrimUI Brick (39 mm vs 11.8 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the ASUS ROG Ally occupies 31,640 mm² (316.4 cm²), compared to 8,045 mm² (80.5 cm²) for the TrimUI Brick—a footprint difference of 23,595 mm² (293.3%). On the scale, the ASUS ROG Ally weighs 608g versus 159g for the TrimUI Brick, representing a 449g (282.4%) 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'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 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 delivers a 7" effective diagonal (100% screen usage) versus 2.94" (75% screen usage) on the TrimUI Brick, making the ASUS ROG Ally larger by 4.06" (+468% active 16:9 area).