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The ROG Ally X and Steam Deck OLED (1TB) are most easily told apart by their overall size. On height, the Steam Deck OLED (1TB) measures 117.0 mm against the ROG Ally X's 111.0 mm — about 6.0 mm more. On width, the Steam Deck OLED (1TB) measures 298.0 mm against the ROG Ally X's 280.0 mm — about 18.0 mm more. On thickness, the Steam Deck OLED (1TB) measures 49.0 mm against the ROG Ally X's 34.0 mm — about 15.0 mm more.
The ROG Ally X is the heavier of the two at 678 g, compared with 670 g for the Steam Deck OLED (1TB). That is a 8 g difference (1%). The gap is small enough that you would barely notice it day to day.
Best used with two hands for full screen access.
Best used with two hands for full screen access.
| Metric | ROG Ally X | Steam Deck OLED (1TB) | Diff |
|---|---|---|---|
| Width | 280.0 mm | 298.0 mm | -18.0 mm |
| Height | 111.0 mm | 117.0 mm | -6.0 mm |
| Depth | 34.0 mm | 49.0 mm | -15.0 mm |
| Weight | 678 g | 670 g | +8.0 mm |