ROG Phone 9 Pro vs Samsung Galaxy S25 Ultra

Side-by-side comparison with real-scale visuals and detailed specifications

100% Objective Comparisons — Data sourced from official manufacturers

See our methodology

100%

ROG Phone 9 Pro is 0.7% taller

ROG Phone 9 Pro

163.8mm×76.8mm

Samsung Galaxy S25 Ultra

165mm×75.6mm

Scaled to real proportions

Specifications Comparison

ROG Phone 9 Pro

Asus

5 wins

Samsung Galaxy S25 Ultra

Samsung

2 wins

📱

Screen Size

Diagonal screen measurement

Better

ROG Phone 9 Pro

6.78"

Samsung Galaxy S25 Ultra

6.8"

Difference: 0.02" (0.3% more)

🔋

Battery

Battery capacity in milliamp-hours

Better

ROG Phone 9 Pro

5,800mAh

Samsung Galaxy S25 Ultra

5,000mAh

Difference: 800mAh (16.0% more)

💾

RAM

Random Access Memory for multitasking

Better

ROG Phone 9 Pro

16GB

Samsung Galaxy S25 Ultra

12GB

Difference: 4GB (33.3% more)

⚖️

Weight

Total device weight

Better

ROG Phone 9 Pro

227g

Samsung Galaxy S25 Ultra

228g

Difference: 1g (0.4% less)

💿

Storage

Internal storage capacity

Better

ROG Phone 9 Pro

512GB

Samsung Galaxy S25 Ultra

256GB

Difference: 256GB (100.0% more)

📷

Main Camera

Main camera resolution

Better

ROG Phone 9 Pro

50MP

Samsung Galaxy S25 Ultra

200MP

Difference: 150MP (300.0% more)

💰

Price

Retail price in USD

Better

ROG Phone 9 Pro

999$

Samsung Galaxy S25 Ultra

1,199$

Difference: 200$ (20.0% less)

📏

Height

Device height

ROG Phone 9 Pro

163.8mm

Samsung Galaxy S25 Ultra

165mm

📐

Width

Device width

ROG Phone 9 Pro

76.8mm

Samsung Galaxy S25 Ultra

75.6mm

📦

Thickness

Device thickness/depth

= Tie

ROG Phone 9 Pro

8.9mm

Samsung Galaxy S25 Ultra

8.9mm

Difference: 0mm

ROG Phone 9 Pro

Samsung Galaxy S25 Ultra

Winner in category

Last updated: March 23, 2026

Source: gsmarena.com

Last updated: March 23, 2026

Source: Official Source

Why Trust Our Comparisons

Verified Data

All specs verified from official sources

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Regularly Updated

Data refreshed when specs change

Transparent Method

Our comparison methodology is public

SizeVS Editorial Team

Verified

Product Comparison Specialists

Our team of tech enthusiasts and data analysts work to provide accurate, unbiased product comparisons.

Verified Data Sources Editorial Standards

Updated: March 24, 2026

Our methodology

Explore this matchup

View ROG Phone 9 Pro View Samsung Galaxy S25 Ultra Screen Size Battery RAM Weight Storage

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