Precision Physical Scale

Visual Phone Size Comparison

Compare physical height, width, thickness, and footprint of smartphones in true-to-scale visual representations.

Quick Delta Summary & Ergonomics

vivo X21 UD is 7.8 mm shorter , 4.2 mm narrower , and 75.8 g lighter than Samsung Galaxy S24 Ultra.

X21 UD: Standard Ergonomics Featherweight

Galaxy S24 Ultra: Large (2-Hands Preferred) Solid / Heavy Flagship

Zoom: 2.4x

Aligned to Common Baseline

vivo X21 UD

6.28" 85.2%

154.5 × 74.8 mm

156.2 g

Samsung Galaxy S24 Ultra

6.8" 88.5%

162.3 × 79 mm

232 g

Metric	vivo X21 UD	Samsung Galaxy S24 Ultra	Difference
Height	154.5 mm	162.3 mm	-7.8 mm
Width	74.8 mm	79 mm	-4.2 mm
Thickness	7.4 mm	8.6 mm	-1.2 mm
Weight	156.2 g	232 g	-75.8 g
Screen Size	6.28"	6.8"	-0.52"
Volume Footprint	85.5 cm³	110.3 cm³	-24.8 cm³

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