iPhone 15 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%

Samsung Galaxy S25 Ultra is 11.8% taller

iPhone 15

147.6mm×71.6mm

Samsung Galaxy S25 Ultra

165mm×75.6mm

Scaled to real proportions

Specifications Comparison

iPhone 15

Apple

3 wins

Samsung Galaxy S25 Ultra

Samsung

5 wins

📱

Screen Size

Diagonal screen measurement

Better

iPhone 15

6.1"

Samsung Galaxy S25 Ultra

6.8"

Difference: 0.7" (11.5% more)

🔋

Battery

Battery capacity in milliamp-hours

Better

iPhone 15

3,340mAh

Samsung Galaxy S25 Ultra

5,000mAh

Difference: 1,660mAh (49.7% more)

💾

RAM

Random Access Memory for multitasking

Better

iPhone 15

6GB

Samsung Galaxy S25 Ultra

12GB

Difference: 6GB (100.0% more)

⚖️

Weight

Total device weight

Better

iPhone 15

171g

Samsung Galaxy S25 Ultra

228g

Difference: 57g (33.3% less)

💿

Storage

Internal storage capacity

Better

iPhone 15

128GB

Samsung Galaxy S25 Ultra

256GB

Difference: 128GB (100.0% more)

📷

Main Camera

Main camera resolution

Better

iPhone 15

48MP

Samsung Galaxy S25 Ultra

200MP

Difference: 152MP (316.7% more)

💰

Price

Retail price in USD

Better

iPhone 15

799$

Samsung Galaxy S25 Ultra

1,199$

Difference: 400$ (50.1% less)

📏

Height

Device height

iPhone 15

147.6mm

Samsung Galaxy S25 Ultra

165mm

📐

Width

Device width

iPhone 15

71.6mm

Samsung Galaxy S25 Ultra

75.6mm

📦

Thickness

Device thickness/depth

Better

iPhone 15

7.8mm

Samsung Galaxy S25 Ultra

8.9mm

Difference: 1.1mm (14.1% less)

iPhone 15

Samsung Galaxy S25 Ultra

Winner in category

Last updated: March 23, 2026

Source: Official Source

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 iPhone 15 View Samsung Galaxy S25 Ultra Screen Size Battery RAM Weight Storage

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