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The Samsung Galaxy S25 Ultra and A3 Paper are most easily told apart by their overall size. On height, the A3 Paper measures 420.0 mm against the Samsung Galaxy S25 Ultra's 162.8 mm — about 257.2 mm more. On width, the A3 Paper measures 297.0 mm against the Samsung Galaxy S25 Ultra's 77.6 mm — about 219.4 mm more. On thickness, the Samsung Galaxy S25 Ultra measures 8.2 mm against the A3 Paper's 0.1 mm — about 8.1 mm more.
Only the Samsung Galaxy S25 Ultra lists a weight (218 g), so a direct comparison is not possible.
Fits in most pockets, may feel snug when sitting.
Most of the screen is reachable, shifting grip needed for corners.
| Metric | Samsung Galaxy S25 Ultra | A3 Paper | Diff |
|---|---|---|---|
| Width | 77.6 mm | 297.0 mm | -219.4 mm |
| Height | 162.8 mm | 420.0 mm | -257.2 mm |
| Depth | 8.2 mm | 0.1 mm | +8.1 mm |
| Weight | 218 g | N/A | - |