OnePlus 9 vs Galaxy S25+: Size & Dimensions Compared
The OnePlus 9 is the larger phone, measuring 1.6mm taller and 1.6mm narrower.
Visual Size Overlay
- •Height differs by 1.6mm — case won't fit
- •Width differs by 1.6mm — case won't fit
- •1.4mm thicker — case won't close properly
Screen sizes differ (6.55" vs 6.7") — protector won't fit.
| Dimension | OnePlus 9 | Galaxy S25+ | Difference |
|---|---|---|---|
| Height | 160mm | 158.4mm | Galaxy S25+ -1.6mm (shorter) |
| Width | 74.2mm | 75.8mm | Galaxy S25+ +1.6mm (wider) |
| Thickness | 8.7mm | 7.3mm | Galaxy S25+ -1.4mm (thinner) |
| Weight | 192g | 190g | Galaxy S25+ -2.0g (lighter) |
| Screen | 6.55" | 6.7" | Galaxy S25+ +0.2" (larger) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The OnePlus 9 is the taller phone at 160mm (vs 158.4mm). It is also 2g 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 | OnePlus 9 | Galaxy S25+ |
|---|---|---|
| Wireless Charging | 10W | 15W |
| Qi Version | Qi | Qi2 |
| MagSafe | No | No |
| Built-in Magnets | No | No |
| Magnet Ring | unknown | none built in |
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 OnePlus 9 to Galaxy S25+?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for OnePlus 9
Accessories for Galaxy S25+
Spigen
Spigen Liquid Air for Galaxy S25+
$15.99
Spigen
Spigen Ultra Hybrid for Galaxy S25+
$16.99
OtterBox
OtterBox Defender Series for Galaxy S25+
$64.95
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Frequently Asked Questions
Is OnePlus 9 bigger than Galaxy S25+?
Yes, the OnePlus 9 is 1.6mm taller and 1.6mm narrower. The OnePlus 9 weighs 192g vs 190g.
Are OnePlus 9 and Galaxy S25+ the same size?
No, the height differs by 1.6mm, width by 1.6mm, and thickness by 1.4mm.