Compare ASUS ROG Ally (280×113×39 mm, 7" 16:9) vs AYN Odin 2 Portal (257×98.6×17.2 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.
ASUS ROG Ally
Panel 16:9 with native resolution 1920x1080.
AYN Odin 2 Portal
Panel 16:9 with native resolution 1920x1080.
Physical Dimensions & Thickness: The ASUS ROG Ally has a horizontal bar chassis measuring 280 × 113 × 39 mm, while the AYN Odin 2 Portal uses a horizontal bar chassis measuring 257 × 98.6 × 17.2 mm. In width, the ASUS ROG Ally is 23 mm (8.9%) wider than the AYN Odin 2 Portal. In height, the ASUS ROG Ally is 14.4 mm (14.6%) taller than the AYN Odin 2 Portal. In chassis thickness (depth), the ASUS ROG Ally is 21.8 mm (126.7%) thicker than the AYN Odin 2 Portal (39 mm vs 17.2 mm).
Footprint Area & Weight: Calculating surface footprint (width × height), the ASUS ROG Ally occupies 31,640 mm² (316.4 cm²), compared to 25,340 mm² (253.4 cm²) for the AYN Odin 2 Portal—a footprint difference of 6,300 mm² (24.9%). On the scale, the ASUS ROG Ally weighs 608g versus 430g for the AYN Odin 2 Portal, representing a 178g (41.4%) weight difference (AYN Odin 2 Portal 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 AYN Odin 2 Portal'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)). Both devices provide the exact same viewable 4:3 image size. For 16:9 widescreen content (PSP, Switch, streaming), the ASUS ROG Ally delivers a 7" effective diagonal (100% screen usage) versus 7" (100% screen usage) on the AYN Odin 2 Portal.
| Specification | ASUS ROG Ally | AYN Odin 2 Portal | Difference / Comparison |
|---|---|---|---|
| Dimensions (W × H × D) | 280 × 113 × 39 mm | 257 × 98.6 × 17.2 mm | AYN Odin 2 Portal is 64.7% smaller by volume |
| Width | 280 mm | 257 mm | 23 mm (8.9% vs Odin 2 Portal) |
| Height | 113 mm | 98.6 mm | 14.4 mm (14.6% vs Odin 2 Portal) |
| Thickness (Depth) | 39 mm | 17.2 mm | 21.8 mm (126.7% vs Odin 2 Portal) |
| Footprint Area (W × H) | 31,640 mm² (316.4 cm²) | 25,340 mm² (253.4 cm²) | 6,300 mm² (24.9% diff) |
| Chassis Volume | 1234 cm³ | 435.9 cm³ | 798.1 cm³ (183.1% diff) |
| Weight | 608 g | 430 g | 178 g (41.4% diff) |
| Form Factor | Horizontal Bar | Horizontal Bar | Both Horizontal Bar |
| Native Screen Diagonal | 7" | 7" | Same diagonal |
| Native Aspect Ratio | 16:9 | 16:9 | Identical 16:9 ratio |
| Display Technology | IPS | AMOLED | IPS vs AMOLED |
| Native Resolution & Density | 1920x1080 (315 PPI) | 1920x1080 (315 PPI) | Same pixel density (315 PPI) |
| Effective 4:3 Screen Size (PS1, SNES, N64) | 5.72" (75% area, pillarbox) | 5.72" (75% area, pillarbox) | Tied at 5.72" |
| Effective 16:9 Screen Size (PSP, Streaming) | 7" (100% native, no bars) | 7" (100% native, no bars) | Tied at 7" |
| Effective 3:2 Screen Size (Game Boy Advance) | 6.19" (84% area, pillarbox) | 6.19" (84% area, pillarbox) | Tied at 6.19" |
| Processor (SoC / CPU) | AMD Ryzen Z1 / AMD Ryzen Z1 Extreme | Qualcomm Snapdragon 8 Gen 2 | Different architecture |
| Memory (RAM) | 16 GB LPDDR5 (6400 MT/s) | 8 GB / 12 GB / 16 GB | 16 GB LPDDR5 (6400 MT/s) vs 8 GB / 12 GB / 16 GB |
| Battery Capacity | 5,195 mAh | 8,000 mAh | 2,805 mAh larger on Odin 2 Portal |
| Operating System | Windows 11 | Android 13 | Windows 11 vs Android 13 |
The ASUS ROG Ally measures 280 × 113 × 39 mm (footprint: 31,640 mm² / 316.4 cm²), whereas the AYN Odin 2 Portal measures 257 × 98.6 × 17.2 mm (footprint: 25,340 mm² / 253.4 cm²). Compared to the AYN Odin 2 Portal, the ASUS ROG Ally is 23 mm (8.9%) wider, 14.4 mm (14.6%) taller, 21.8 mm (126.7%) thicker, and 6,300 mm² (24.9%) larger in footprint area. In weight, the ASUS ROG Ally is 178g (41.4%) heavier (608g vs 430g).
Both the ASUS ROG Ally and AYN Odin 2 Portal produce the exact same 5.72" effective 4:3 viewable diagonal. Specifically, 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)). The AYN Odin 2 Portal has a 7" 16:9 AMOLED 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, both devices provide an identical 7" effective diagonal image. On 16:9 content, the ASUS ROG Ally operates at 100% full screen without black bars (native 16:9), while the AYN Odin 2 Portal operates at 100% full screen without black bars (native 16:9).
No, the AYN Odin 2 Portal is more compact and pocketable than the ASUS ROG Ally, with a smaller overall chassis volume (435.9 cm³ vs 1234 cm³). The ASUS ROG Ally uses a horizontal bar form factor (280 mm wide × 39 mm thick, 608g), whereas the AYN Odin 2 Portal uses a horizontal bar form factor (257 mm wide × 17.2 mm thick, 430g). Overall, the AYN Odin 2 Portal is easier to carry in a pocket due to its slimmer 17.2 mm profile and smaller physical footprint.
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