Galaxy S20 Ultra vs Galaxy S25: Size & Dimensions Compared
The Galaxy S20 Ultra is the larger phone, measuring 20.0mm taller and 5.5mm wider.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Edge types differ (curved vs flat) — screen protector won't adhere properly.
| Dimension | Galaxy S20 Ultra | Galaxy S25 | Difference |
|---|---|---|---|
| Height | 166.9mm | 146.9mm | Galaxy S25 -20.0mm (shorter) |
| Width | 76mm | 70.5mm | Galaxy S25 -5.5mm (narrower) |
| Thickness | 8.8mm | 7.2mm | Galaxy S25 -1.6mm (thinner) |
| Weight | 220g | 162g | Galaxy S25 -58.0g (lighter) |
| Screen | 6.9" | 6.2" | Galaxy S25 -0.7" (smaller) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The Galaxy S20 Ultra is the taller phone at 166.9mm (vs 146.9mm). It is also 58g 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 S20 Ultra | 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 Galaxy S20 Ultra to Galaxy S25?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S20 Ultra
Accessories for Galaxy S25
Spigen
Spigen Liquid Air for Galaxy S25
$14.99
Samsung
Samsung Galaxy S25 Silicone Case
$29.99
As an Amazon Associate, WillItSnap earns from qualifying purchases.
Frequently Asked Questions
Is Galaxy S20 Ultra bigger than Galaxy S25?
Yes, the Galaxy S20 Ultra is 20.0mm taller and 5.5mm wider. The Galaxy S20 Ultra weighs 220g vs 162g.
Are Galaxy S20 Ultra and Galaxy S25 the same size?
No, the height differs by 20.0mm, width by 5.5mm, and thickness by 1.6mm.