Galaxy S25 vs Galaxy S23 Ultra: Size & Dimensions Compared
The Galaxy S23 Ultra is the larger phone, measuring 16.5mm shorter and 7.6mm narrower.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Edge types differ (flat vs curved) — screen protector won't adhere properly.
| Dimension | Galaxy S25 | Galaxy S23 Ultra | Difference |
|---|---|---|---|
| Height | 146.9mm | 163.4mm | Galaxy S23 Ultra +16.5mm (taller) |
| Width | 70.5mm | 78.1mm | Galaxy S23 Ultra +7.6mm (wider) |
| Thickness | 7.2mm | 8.9mm | Galaxy S23 Ultra +1.7mm (thicker) |
| Weight | 162g | 234g | Galaxy S23 Ultra +72.0g (heavier) |
| Screen | 6.2" | 6.8" | Galaxy S23 Ultra +0.6" (larger) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The Galaxy S23 Ultra is the taller phone at 163.4mm (vs 146.9mm). It is also 72g 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 S25 | Galaxy S23 Ultra |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi2 | Qi |
| MagSafe | No | No |
| Built-in Magnets | No | No |
| Magnet Ring | none built in | unknown |
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 S25 to Galaxy S23 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S25
Spigen
Spigen Liquid Air for Galaxy S25
$14.99
Samsung
Samsung Galaxy S25 Silicone Case
$29.99
Accessories for Galaxy S23 Ultra
Spigen
Spigen Tough Armor for Galaxy S23 Ultra
$17.99
OtterBox
OtterBox Defender Series for Galaxy S23 Ultra
$64.95
TORRAS
TORRAS MarsClimber for Galaxy S23 Ultra
$19.99
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Frequently Asked Questions
Is Galaxy S25 bigger than Galaxy S23 Ultra?
No, the Galaxy S23 Ultra is 16.5mm taller. The Galaxy S25 weighs 162g vs 234g.
Are Galaxy S25 and Galaxy S23 Ultra the same size?
No, the height differs by 16.5mm, width by 7.6mm, and thickness by 1.7mm.