Pixel 9a vs Galaxy S25 Ultra: Size & Dimensions Compared
The Galaxy S25 Ultra is the larger phone, measuring 8.1mm shorter and 4.3mm narrower.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Screen sizes differ (6.3" vs 6.9") — protector won't fit.
| Dimension | Pixel 9a | Galaxy S25 Ultra | Difference |
|---|---|---|---|
| Height | 154.7mm | 162.8mm | Galaxy S25 Ultra +8.1mm (taller) |
| Width | 73.3mm | 77.6mm | Galaxy S25 Ultra +4.3mm (wider) |
| Thickness | 8.9mm | 8.2mm | Galaxy S25 Ultra -0.7mm (thinner) |
| Weight | 186g | 218g | Galaxy S25 Ultra +32.0g (heavier) |
| Screen | 6.3" | 6.9" | Galaxy S25 Ultra +0.6" (larger) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The Galaxy S25 Ultra is the taller phone at 162.8mm (vs 154.7mm). It is also 32g 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 | Pixel 9a | Galaxy S25 Ultra |
|---|---|---|
| Wireless Charging | 15W | 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 Pixel 9a to Galaxy S25 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Pixel 9a
Accessories for Galaxy S25 Ultra
Spigen
Spigen Tough Armor for Galaxy S25 Ultra
$18.99
Samsung
Samsung Silicone Case for Galaxy S25 Ultra
$39.99
OtterBox
OtterBox Symmetry for Galaxy S25 Ultra
$49.95
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Frequently Asked Questions
Is Pixel 9a bigger than Galaxy S25 Ultra?
No, the Galaxy S25 Ultra is 8.1mm taller. The Pixel 9a weighs 186g vs 218g.
Are Pixel 9a and Galaxy S25 Ultra the same size?
No, the height differs by 8.1mm, width by 4.3mm, and thickness by 0.7mm.