Compare Anbernic RG28XX (125×56.5×16.5 mm, 2.83" 4:3) vs ASUS ROG Ally (280×113×39 mm, 7" 16:9) side-by-side at true 1:1 millimeter scale.
Silhouettes and screens to true relative scale (mm). Inner rectangle represents the physical screen.
Anbernic RG28XX
Panel 4:3 with native resolution 640x480.
ASUS ROG Ally
Panel 16:9 with native resolution 1920x1080.
Physical Dimensions & Thickness: The Anbernic RG28XX has a horizontal bar chassis measuring 125 × 56.5 × 16.5 mm, while the ASUS ROG Ally uses a horizontal bar chassis measuring 280 × 113 × 39 mm. In width, the Anbernic RG28XX is 155 mm (55.4%) narrower than the ASUS ROG Ally. In height, the Anbernic RG28XX is 56.5 mm (50%) shorter than the ASUS ROG Ally. In chassis thickness (depth), the Anbernic RG28XX is 22.5 mm (57.7%) slimmer than the ASUS ROG Ally (16.5 mm vs 39 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the Anbernic RG28XX occupies 7,063 mm² (70.6 cm²), compared to 31,640 mm² (316.4 cm²) for the ASUS ROG Ally—a footprint difference of 24,577 mm² (77.7%). On the scale, the Anbernic RG28XX weighs 123g versus 608g for the ASUS ROG Ally, representing a 485g (79.8%) weight difference (Anbernic RG28XX is lighter).
4:3 vs 16:9 Effective Viewable Screen Size: For classic 4:3 retro games (PS1, SNES, N64, Dreamcast), the Anbernic RG28XX's 2.83" (4:3) panel yields a 2.83" effective diagonal (100% full screen without black bars (native 4:3)), while 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)). This gives the ASUS ROG Ally a 2.89" larger active 4:3 diagonal (308.5% more active display area). For 16:9 widescreen content (PSP, Switch, streaming), the Anbernic RG28XX delivers a 2.6" effective diagonal (75% screen usage) versus 7" (100% screen usage) on the ASUS ROG Ally, making the ASUS ROG Ally larger by 4.4" (+626.2% active 16:9 area).
| Specification | Anbernic RG28XX | ASUS ROG Ally | Difference / Comparison |
|---|---|---|---|
| Dimensions (W × H × D) | 125 × 56.5 × 16.5 mm | 280 × 113 × 39 mm | Anbernic RG28XX is 90.6% smaller by volume |
| Width | 125 mm | 280 mm | 155 mm (55.4% vs ROG Ally) |
| Height | 56.5 mm | 113 mm | 56.5 mm (50% vs ROG Ally) |
| Thickness (Depth) | 16.5 mm | 39 mm | 22.5 mm (57.7% vs ROG Ally) |
| Footprint Area (W × H) | 7,063 mm² (70.6 cm²) | 31,640 mm² (316.4 cm²) | 24,577 mm² (77.7% diff) |
| Chassis Volume | 116.5 cm³ | 1234 cm³ | 1117.5 cm³ (90.6% diff) |
| Weight | 123 g | 608 g | 485 g (79.8% diff) |
| Form Factor | Horizontal Bar | Horizontal Bar | Both Horizontal Bar |
| Native Screen Diagonal | 2.83" | 7" | 4.17" (147.3% larger on ROG Ally) |
| Native Aspect Ratio | 4:3 | 16:9 | 4:3 vs 16:9 |
| Display Technology | IPS | IPS | Both IPS |
| Native Resolution & Density | 640x480 (283 PPI) | 1920x1080 (315 PPI) | 32 PPI sharper on ROG Ally |
| Effective 4:3 Screen Size (PS1, SNES, N64) | 2.83" (100% native, no bars) | 5.72" (75% area, pillarbox) | +2.89" (+308.5% area) on ROG Ally |
| Effective 16:9 Screen Size (PSP, Streaming) | 2.6" (75% area, letterbox) | 7" (100% native, no bars) | +4.4" (+626.2% area) on ROG Ally |
| Effective 3:2 Screen Size (Game Boy Advance) | 2.72" (89% area, letterbox) | 6.19" (84% area, pillarbox) | +3.47" (+416.9% area) on ROG Ally |
| Processor (SoC / CPU) | Allwinner H700 | AMD Ryzen Z1 / AMD Ryzen Z1 Extreme | Different architecture |
| Memory (RAM) | 1 GB LPDDR4 | 16 GB LPDDR5 (6400 MT/s) | 1 GB LPDDR4 vs 16 GB LPDDR5 (6400 MT/s) |
| Battery Capacity | 3,100 mAh | 5,195 mAh | 2,095 mAh larger on ROG Ally |
| Operating System | Linux | Windows 11 | Linux vs Windows 11 |
The Anbernic RG28XX measures 125 × 56.5 × 16.5 mm (footprint: 7,063 mm² / 70.6 cm²), whereas the ASUS ROG Ally measures 280 × 113 × 39 mm (footprint: 31,640 mm² / 316.4 cm²). Compared to the ASUS ROG Ally, the Anbernic RG28XX is 155 mm (55.4%) narrower, 56.5 mm (50%) shorter, 22.5 mm (57.7%) slimmer, and 24,577 mm² (77.7%) smaller in footprint area. In weight, the Anbernic RG28XX is 485g (79.8%) lighter (123g vs 608g).
The ASUS ROG Ally delivers a larger active 4:3 image by 2.89" diagonal (308.5% more active display area) than the Anbernic RG28XX. Specifically, the Anbernic RG28XX has a 2.83" 4:3 IPS screen (640x480) that yields a 2.83" effective 4:3 diagonal (100% full screen without black bars (native 4:3)). The ASUS ROG Ally has a 7" 16:9 IPS screen (1920x1080) that yields a 5.72" effective 4:3 diagonal (75% active screen area with vertical pillarbox bars on the sides (native 16:9)).
For 16:9 widescreen gaming (PSP, Switch, and game streaming), the ASUS ROG Ally provides a larger viewable image at 7" effective diagonal compared to 2.6" on the Anbernic RG28XX (+4.4", or 626.2% more active widescreen area). On 16:9 content, the Anbernic RG28XX operates at 75% active screen area with horizontal letterbox bars on top and bottom (native 4:3), while the ASUS ROG Ally operates at 100% full screen without black bars (native 16:9).
Yes, the Anbernic RG28XX is more compact and pocketable than the ASUS ROG Ally, with a smaller overall chassis volume (116.5 cm³ vs 1234 cm³). The Anbernic RG28XX uses a horizontal bar form factor (125 mm wide × 16.5 mm thick, 123g), whereas the ASUS ROG Ally uses a horizontal bar form factor (280 mm wide × 39 mm thick, 608g). Overall, the Anbernic RG28XX is easier to carry in a pocket due to its slimmer 16.5 mm profile and smaller physical footprint.
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