Galaxy S23 Ultra vs Galaxy S25: Size & Dimensions Compared

The Galaxy S23 Ultra is the larger phone, measuring 16.5mm taller and 7.6mm wider.

DimensionGalaxy S23 UltraGalaxy S25Difference
Height163.4mm146.9mmGalaxy S23 Ultra +16.5mm
Width78.1mm70.5mmGalaxy S23 Ultra +7.6mm
Thickness8.9mm7.2mmGalaxy S23 Ultra +1.7mm
Weight234g162gGalaxy S23 Ultra +72.0g
Screen6.8"6.2"Galaxy S23 Ultra +0.6"

Visual Size Comparison

HeightGalaxy S23 Ultra +16.5mm
Galaxy S23 Ultra
163.4mm
Galaxy S25
146.9mm
WidthGalaxy S23 Ultra +7.6mm
Galaxy S23 Ultra
78.1mm
Galaxy S25
70.5mm
ThicknessGalaxy S23 Ultra +1.7mm
Galaxy S23 Ultra
8.9mm
Galaxy S25
7.2mm

Which is bigger?

The Galaxy S23 Ultra is the taller phone at 163.4mm (vs 146.9mm). It is also 72g heavier.

Upgrading from Galaxy S23 Ultra to Galaxy S25?

Different sizes mean your old case probably won't fit. You'll need a new one.

Accessories for Galaxy S23 Ultra

Spigen

Spigen Tough Armor for Galaxy S23 Ultra

$17.99

View on Amazon

OtterBox

OtterBox Defender Series for Galaxy S23 Ultra

$64.95

View on Amazon

TORRAS

TORRAS MarsClimber for Galaxy S23 Ultra

$19.99

View on Amazon

Accessories for Galaxy S25

Spigen

Spigen Liquid Air for Galaxy S25

$14.99

View on Amazon

Samsung

Samsung Galaxy S25 Silicone Case

$29.99

View on Amazon

As an Amazon Associate, WillItSnap earns from qualifying purchases.

Frequently Asked Questions

Is Galaxy S23 Ultra bigger than Galaxy S25?

Yes, the Galaxy S23 Ultra is 16.5mm taller and 7.6mm wider. The Galaxy S23 Ultra weighs 234g vs 162g.

Are Galaxy S23 Ultra and Galaxy S25 the same size?

No, the height differs by 16.5mm, width by 7.6mm, and thickness by 1.7mm.