Galaxy S25 Ultra vs iPhone 12 Pro Max: Size & Dimensions Compared
The Galaxy S25 Ultra is the larger phone, measuring 2.0mm taller and 0.5mm narrower.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Screen sizes differ (6.9" vs 6.7") — protector won't fit.
| Dimension | Galaxy S25 Ultra | iPhone 12 Pro Max | Difference |
|---|---|---|---|
| Height | 162.8mm | 160.8mm | iPhone 12 Pro Max -2.0mm (shorter) |
| Width | 77.6mm | 78.1mm | iPhone 12 Pro Max +0.5mm (wider) |
| Thickness | 8.2mm | 7.4mm | iPhone 12 Pro Max -0.8mm (thinner) |
| Weight | 218g | 228g | iPhone 12 Pro Max +10.0g (heavier) |
| Screen | 6.9" | 6.7" | iPhone 12 Pro Max -0.2" (smaller) |
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 lighter.
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 | Galaxy S25 Ultra | iPhone 12 Pro Max |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi2 | Qi |
| MagSafe | No | Gen 1 |
| Built-in Magnets | No | Yes |
| Magnet Ring | none built in | closed circle |
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 Ultra to iPhone 12 Pro Max?
Different sizes mean your old case probably won't fit. You'll need a new one.
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 Galaxy S25 Ultra bigger than iPhone 12 Pro Max?
Yes, the Galaxy S25 Ultra is 2.0mm taller and 0.5mm narrower. The Galaxy S25 Ultra weighs 218g vs 228g.
Are Galaxy S25 Ultra and iPhone 12 Pro Max the same size?
No, the height differs by 2.0mm, width by 0.5mm, and thickness by 0.8mm.