Galaxy S25 Ultra vs Poco X8 Pro Max

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

100% Objective Comparisons — Data sourced from official manufacturers

See our methodology

100%

Galaxy S25 Ultra is 1.8% taller

Galaxy S25 Ultra

162.8mm×77.6mm

Poco X8 Pro Max

159.9mm×73.4mm

Scaled to real proportions

Specifications Comparison

Galaxy S25 Ultra

Samsung

4 wins

Poco X8 Pro Max

Xiaomi

3 wins

📱

Screen Size

Diagonal screen measurement

Better

Galaxy S25 Ultra

6.8"

Poco X8 Pro Max

6.67"

Difference: 0.13" (1.9% more)

🔋

Battery

Battery capacity in milliamp-hours

= Tie

Galaxy S25 Ultra

5,000mAh

Poco X8 Pro Max

5,000mAh

Difference: 0mAh

💾

RAM

Random Access Memory for multitasking

Better

Galaxy S25 Ultra

12GB

Poco X8 Pro Max

8GB

Difference: 4GB (50.0% more)

⚖️

Weight

Total device weight

Better

Galaxy S25 Ultra

218g

Poco X8 Pro Max

205g

Difference: 13g (6.3% less)

💿

Storage

Internal storage capacity

Better

Galaxy S25 Ultra

256GB

Poco X8 Pro Max

128GB

Difference: 128GB (100.0% more)

📷

Main Camera

Main camera resolution

Better

Galaxy S25 Ultra

200MP

Poco X8 Pro Max

108MP

Difference: 92MP (85.2% more)

💰

Price

Retail price in USD

Better

Galaxy S25 Ultra

753$

Poco X8 Pro Max

299$

Difference: 454$ (151.8% less)

📏

Height

Device height

Galaxy S25 Ultra

162.8mm

Poco X8 Pro Max

159.9mm

📐

Width

Device width

Galaxy S25 Ultra

77.6mm

Poco X8 Pro Max

73.4mm

📦

Thickness

Device thickness/depth

Better

Galaxy S25 Ultra

8.2mm

Poco X8 Pro Max

8.1mm

Difference: 0.1mm (1.2% less)

Galaxy S25 Ultra

Poco X8 Pro Max

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

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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 Galaxy S25 Ultra View Poco X8 Pro Max Screen Size Battery RAM Weight Storage

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