iPhone 12 Pro Max vs Galaxy S25 Ultra: Size & Dimensions Compared
The Galaxy S25 Ultra is the larger phone, measuring 2.0mm shorter and 0.5mm wider.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Screen sizes differ (6.7" vs 6.9") — protector won't fit.
| Dimension | iPhone 12 Pro Max | Galaxy S25 Ultra | Difference |
|---|---|---|---|
| Height | 160.8mm | 162.8mm | Galaxy S25 Ultra +2.0mm (taller) |
| Width | 78.1mm | 77.6mm | Galaxy S25 Ultra -0.5mm (narrower) |
| Thickness | 7.4mm | 8.2mm | Galaxy S25 Ultra +0.8mm (thicker) |
| Weight | 228g | 218g | Galaxy S25 Ultra -10.0g (lighter) |
| Screen | 6.7" | 6.9" | Galaxy S25 Ultra +0.2" (larger) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The Galaxy S25 Ultra is the taller phone at 162.8mm (vs 160.8mm). It but is 10g heavier.
Wireless Charging & MagSafe Compatibility
Wireless chargers work with both phones, but magnetic snap varies.
- ⚠Your MagSafe charger will charge the Galaxy S25 Ultra via Qi2, but it won't magnetically snap on without a magnetic case.
- ⚠The Galaxy S25 Ultra supports Qi2 but has no built-in magnets — magnetic accessories won't snap on without a magnetic case. The iPhone 12 Pro Max has built-in magnets.
| Spec | iPhone 12 Pro Max | Galaxy S25 Ultra |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi | Qi2 |
| MagSafe | Gen 1 | No |
| Built-in Magnets | Yes | No |
| Magnet Ring | closed circle | 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 iPhone 12 Pro Max to Galaxy S25 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for iPhone 12 Pro Max
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 iPhone 12 Pro Max bigger than Galaxy S25 Ultra?
No, the Galaxy S25 Ultra is 2.0mm taller. The iPhone 12 Pro Max weighs 228g vs 218g.
Are iPhone 12 Pro Max and Galaxy S25 Ultra the same size?
No, the height differs by 2.0mm, width by 0.5mm, and thickness by 0.8mm.