Galaxy S26 Ultra vs Redmi 15

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

100% Objective Comparisons — Data sourced from official manufacturers

See our methodology

100%

Galaxy S26 Ultra is 2.6% taller

Galaxy S26 Ultra

163.6mm×78.1mm

Redmi 15

159.5mm×73.9mm

Scaled to real proportions

Specifications Comparison

Galaxy S26 Ultra

Samsung

5 wins

Redmi 15

Xiaomi

2 wins

📱

Screen Size

Diagonal screen measurement

Better

Galaxy S26 Ultra

6.7"

Redmi 15

6.67"

Difference: 0.03" (0.4% more)

🔋

Battery

Battery capacity in milliamp-hours

= Tie

Galaxy S26 Ultra

5,000mAh

Redmi 15

5,000mAh

Difference: 0mAh

💾

RAM

Random Access Memory for multitasking

Better

Galaxy S26 Ultra

12GB

Redmi 15

8GB

Difference: 4GB (50.0% more)

⚖️

Weight

Total device weight

Better

Galaxy S26 Ultra

214g

Redmi 15

190g

Difference: 24g (12.6% less)

💿

Storage

Internal storage capacity

Better

Galaxy S26 Ultra

256GB

Redmi 15

128GB

Difference: 128GB (100.0% more)

📷

Main Camera

Main camera resolution

Better

Galaxy S26 Ultra

200MP

Redmi 15

108MP

Difference: 92MP (85.2% more)

💰

Price

Retail price in USD

Better

Galaxy S26 Ultra

1,299$

Redmi 15

239$

Difference: 1,060$ (443.5% less)

📏

Height

Device height

Galaxy S26 Ultra

163.6mm

Redmi 15

159.5mm

📐

Width

Device width

Galaxy S26 Ultra

78.1mm

Redmi 15

73.9mm

📦

Thickness

Device thickness/depth

Better

Galaxy S26 Ultra

7.9mm

Redmi 15

8.1mm

Difference: 0.2mm (2.5% less)

Galaxy S26 Ultra

Redmi 15

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 Galaxy S26 Ultra View Redmi 15 Screen Size Battery RAM Weight Storage

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