Galaxy S25 Ultra vs Redmi Note 15 (China)

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 2.2% taller

Galaxy S25 Ultra

162.8mm×77.6mm

Redmi Note 15 (China)

159.3mm×73.9mm

Scaled to real proportions

Specifications Comparison

Galaxy S25 Ultra

Samsung

4 wins

Redmi Note 15 (China)

Xiaomi

3 wins

📱

Screen Size

Diagonal screen measurement

Better

Galaxy S25 Ultra

6.8"

Redmi Note 15 (China)

6.67"

Difference: 0.13" (1.9% more)

🔋

Battery

Battery capacity in milliamp-hours

= Tie

Galaxy S25 Ultra

5,000mAh

Redmi Note 15 (China)

5,000mAh

Difference: 0mAh

💾

RAM

Random Access Memory for multitasking

Better

Galaxy S25 Ultra

12GB

Redmi Note 15 (China)

6GB

Difference: 6GB (100.0% more)

⚖️

Weight

Total device weight

Better

Galaxy S25 Ultra

218g

Redmi Note 15 (China)

197g

Difference: 21g (10.7% less)

💿

Storage

Internal storage capacity

Better

Galaxy S25 Ultra

256GB

Redmi Note 15 (China)

128GB

Difference: 128GB (100.0% more)

📷

Main Camera

Main camera resolution

Better

Galaxy S25 Ultra

200MP

Redmi Note 15 (China)

108MP

Difference: 92MP (85.2% more)

💰

Price

Retail price in USD

Better

Galaxy S25 Ultra

753$

Redmi Note 15 (China)

199$

Difference: 554$ (278.4% less)

📏

Height

Device height

Galaxy S25 Ultra

162.8mm

Redmi Note 15 (China)

159.3mm

📐

Width

Device width

Galaxy S25 Ultra

77.6mm

Redmi Note 15 (China)

73.9mm

📦

Thickness

Device thickness/depth

Better

Galaxy S25 Ultra

8.2mm

Redmi Note 15 (China)

8.1mm

Difference: 0.1mm (1.2% less)

Galaxy S25 Ultra

Redmi Note 15 (China)

Winner in category

Last updated: March 23, 2026

Source: gsmarena.com

Last updated: March 23, 2026

Source: Official Source

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Verified Data

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Data refreshed when specs change

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Our comparison methodology is public

SizeVS Editorial Team

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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 Redmi Note 15 (China) Screen Size Battery RAM Weight Storage

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