Galaxy S21 vs OnePlus 13: Size & Dimensions Compared
The OnePlus 13 is the larger phone, measuring 11.2mm shorter and 5.3mm narrower.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Screen sizes differ (6.2" vs 6.82") — protector won't fit.
| Dimension | Galaxy S21 | OnePlus 13 | Difference |
|---|---|---|---|
| Height | 151.7mm | 162.9mm | OnePlus 13 +11.2mm (taller) |
| Width | 71.2mm | 76.5mm | OnePlus 13 +5.3mm (wider) |
| Thickness | 7.9mm | 8.5mm | OnePlus 13 +0.6mm (thicker) |
| Weight | 169g | 213g | OnePlus 13 +44.0g (heavier) |
| Screen | 6.2" | 6.82" | OnePlus 13 +0.6" (larger) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The OnePlus 13 is the taller phone at 162.9mm (vs 151.7mm). It is also 44g heavier.
Wireless Charging & MagSafe Compatibility
Wireless chargers work with both phones, but magnetic snap varies.
- ✓Both devices support wireless charging. Standard Qi/Qi2 chargers work with either phone.
| Spec | Galaxy S21 | OnePlus 13 |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi | Qi |
| MagSafe | No | No |
| Built-in Magnets | No | No |
MagSafe cases are NOT cross-compatible between these devices — the case body is shaped to each phone, even though the internal magnet ring may be the same.
Upgrading from Galaxy S21 to OnePlus 13?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S21
Accessories for OnePlus 13
Spigen
Spigen Ultra Hybrid for OnePlus 13
$15.99
Ringke
Ringke Fusion-X MagSafe for OnePlus 13
$23.99
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Frequently Asked Questions
Is Galaxy S21 bigger than OnePlus 13?
No, the OnePlus 13 is 11.2mm taller. The Galaxy S21 weighs 169g vs 213g.
Are Galaxy S21 and OnePlus 13 the same size?
No, the height differs by 11.2mm, width by 5.3mm, and thickness by 0.6mm.