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Samsung Galaxy S21 Ultra vs Xiaomi 15

Samsung Galaxy S21 Ultra
Samsung

Samsung Galaxy S21 Ultra

سامسونج جالاكسي S21 الترا

Release Year: 2021

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Xiaomi 15
Xiaomi

Xiaomi 15

شاومي 15

Release Year: 2025

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Quick Verdict

Samsung Galaxy S21 Ultra

Processor: Exynos 2100
RAM: 12
Storage: 128
Display Size: 6.8
Refresh Rate: 120
Battery: 5000

Xiaomi 15

Processor: Snapdragon 8 Elite
RAM: 12
Storage: 256
Display Size: 6.36
Refresh Rate: 120
Battery: 5240

Specifications

Display

Samsung Galaxy S21 Ultra

Xiaomi 15

Screen Size Different
6.8 inches
6.36 inches
Resolution Different
3200 x 1440 (WQHD+)
2670 x 1200 (1.5K)
Screen Type Different
Dynamic AMOLED 2X
LTPO AMOLED
Refresh Rate
120 Hz
120 Hz
Performance

Samsung Galaxy S21 Ultra

Xiaomi 15

Processor Different
Exynos 2100
Snapdragon 8 Elite
RAM
12 GB
12 GB
Storage Different
128 GB
256 GB
Camera

Samsung Galaxy S21 Ultra

Xiaomi 15

Main Camera Different
108MP + 12MP + 10MP + 10MP
50MP + 50MP + 50MP (Leica)
Front Camera Different
40MP
32MP
Battery

Samsung Galaxy S21 Ultra

Xiaomi 15

Battery Different
5000 mAh
5240 mAh
Charging Different
25W Fast Charging
90W Wired, 50W Wireless
Wireless Charging
Yes
Yes
Connectivity

Samsung Galaxy S21 Ultra

Xiaomi 15

Network
5G
5G
NFC
Yes
Yes
Design

Samsung Galaxy S21 Ultra

Xiaomi 15

Weight Different
227 g
181 g
Water Resistance
IP68
IP68
Software

Samsung Galaxy S21 Ultra

Xiaomi 15

Operating System Different
Android 11, One UI 3.1
Android 15, HyperOS 2

Frequently Asked Questions

Samsung Galaxy S21 Ultra

What processor does the Samsung Galaxy S21 Ultra use?
The Samsung Galaxy S21 Ultra is powered by the Exynos 2100 processor.
How much storage does the Samsung Galaxy S21 Ultra have?
The Samsung Galaxy S21 Ultra comes with 128 of internal storage.
What is the battery capacity of the Samsung Galaxy S21 Ultra?
The Samsung Galaxy S21 Ultra has a 5000 battery.
What camera does the Samsung Galaxy S21 Ultra have?
The Samsung Galaxy S21 Ultra features a 108MP + 12MP + 10MP + 10MP main camera and a 40MP front camera.
What is the screen size of the Samsung Galaxy S21 Ultra?
The Samsung Galaxy S21 Ultra has a 6.8 display.

Xiaomi 15

What processor does the Xiaomi 15 use?
The Xiaomi 15 is powered by the Snapdragon 8 Elite processor.
How much storage does the Xiaomi 15 have?
The Xiaomi 15 comes with 256 of internal storage.
What is the battery capacity of the Xiaomi 15?
The Xiaomi 15 has a 5240 battery.
What camera does the Xiaomi 15 have?
The Xiaomi 15 features a 50MP + 50MP + 50MP (Leica) main camera and a 32MP front camera.
What is the screen size of the Xiaomi 15?
The Xiaomi 15 has a 6.36 display.

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