OnePlus 13R vs Nothing Phone (3a): size comparison
Nothing Phone (3a) is 1.8 mm taller and 1.73 mm wider than OnePlus 13R. OnePlus 13R would fit inside the outline of Nothing Phone (3a).
OnePlus 13R measures 161.72 x 75.77 x 8.02 mm (height x width x thickness), while Nothing Phone (3a) measures 163.52 x 77.5 x 8.35 mm.
Both phones are drawn to the same scale on a grid where each square is 10 mm. Blue is OnePlus 13R, coral is Nothing Phone (3a).
| OnePlus 13R | Nothing Phone (3a) | Difference | |
|---|---|---|---|
| Height | 161.72 mm | 163.52 mm | +1.8 mm |
| Width | 75.77 mm | 77.5 mm | +1.73 mm |
| Thickness | 8.02 mm | 8.35 mm | +0.33 mm |
Drag them in the size toolSee them at true size
What the size difference means in daily use
One-handed use
Nothing Phone (3a) is 1.73 mm wider (77.5 mm against 75.77 mm). Width is the number that changes one-handed comfort most, so the narrower OnePlus 13R is likely to be easier to use with one hand, although hand size and grip matter a lot. Phones around 77 mm wide or more are usually the ones people describe as large.
Pockets and bags
Nothing Phone (3a) is 1.8 mm taller, which mostly affects how deep it sits in a pocket and how far your thumb must stretch to the top edge. Thickness differs by only 0.33 mm, which is too small to notice in everyday use.
Cases and screen protectors
Because the height or width differs by about a millimetre or more, a case or screen protector made for OnePlus 13R is unlikely to fit Nothing Phone (3a). Always buy accessories listed for the exact model.
Frequently asked questions
Is Nothing Phone (3a) bigger than OnePlus 13R?
Nothing Phone (3a) is 1.8 mm taller and 1.73 mm wider than OnePlus 13R. OnePlus 13R would fit inside the outline of Nothing Phone (3a). Thickness differs by 0.33 mm.
Will a case for OnePlus 13R fit Nothing Phone (3a)?
Because the height or width differs by about a millimetre or more, a case or screen protector made for OnePlus 13R is unlikely to fit Nothing Phone (3a). Always buy accessories listed for the exact model.
Which is easier to hold with one hand, OnePlus 13R or Nothing Phone (3a)?
Nothing Phone (3a) is 1.73 mm wider (77.5 mm against 75.77 mm). Width is the number that changes one-handed comfort most, so the narrower OnePlus 13R is likely to be easier to use with one hand, although hand size and grip matter a lot. Phones around 77 mm wide or more are usually the ones people describe as large.
About these numbers
Sizes are height x width x thickness in millimetres, taken from manufacturer and retailer spec pages and phone databases. Thickness can differ slightly by colour or back material, and where sources show a range we use the larger value. If you spot a wrong number, please tell us and we will fix it.