Xiaomi Poco X3 Pro vs Samsung Galaxy S21

65 out of 100

70 out of 100

Here we compared two smartphones: the 6.67-inch Xiaomi Poco X3 Pro (with Qualcomm Snapdragon 860) that was released on March 22, 2021, against the Samsung Galaxy S21, which is powered by Exynos 2100 and came out 3 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Differences
Review
Specs
Benchmarks
Battery life
Camera
Comments

Key differences

An overview of the main advantages of each smartphone

Reasons to consider the Xiaomi Poco X3 Pro

Comes with 1160 mAh larger battery capacity: 5160 vs 4000 mAh
Shows 24% longer battery life (31:56 vs 25:44 hours)
Expandable storage via MicroSD card up to 1024GB
Has a 0.47 inch larger screen size
Includes a 3.5 mm headphone audio jack port
Has a built-in infrared port

Reasons to consider the Samsung Galaxy S21

Delivers 61% higher peak brightness (864 against 536 nits)
Handles wireless charging up to 15W
Optical image stabilization
Waterproof body (IP68 classification)
The rear camera has a 1.1x optical zoom
27% better performance in AnTuTu Benchmark (806K versus 634K)
Uses a faster type of memory: LPDDR5 2750 MHz
Compatible with Wi-Fi 6 wireless networks
Dynamic AMOLED display (versus competitor''s IPS LCD)

Review

Evaluation of Xiaomi Poco X3 Pro and Samsung Galaxy S21 crucial features

Display

Screen quality, color accuracy, brightness

Type	IPS LCD	Dynamic AMOLED
Size	6.67 inches	6.2 inches
Resolution	1080 x 2400 pixels	1080 x 2400 pixels
Aspect ratio	20:9	20:9
PPI	395 ppi	421 ppi
Refresh rate	120 Hz	120 Hz
Adaptive refresh rate	No	No
Max rated brightness	450 nits	800 nits
Max rated brightness in HDR	600 nits	-
HDR support	Yes, HDR10	Yes, HDR10+
Screen protection	Corning Gorilla Glass 6	Gorilla Glass Victus
Screen-to-body ratio	84.6%	87.2%
Display features	-	- DCI-P3 - Always-On Display

RGB color space	95.1%	99.5%
PWM	2404 Hz	240 Hz
Response time	37.4 ms	5 ms
Contrast	995:1	∞ Infinity

Height	165.3 mm (6.51 inches)	151.7 mm (5.97 inches)
Width	76.8 mm (3.02 inches)	71.2 mm (2.8 inches)
Thickness	9.4 mm (0.37 inches)	7.9 mm (0.31 inches)
Weight	215 g (7.58 oz)	169 g (5.96 oz)
Waterproof	IP53	IP68
Rear material	Plastic	Plastic
Frame material	Plastic	Metal
Colors	Black, Gold, Blue	White, Gray, Pink, Purple
Fingerprint scanner	Yes, in-button	Yes, in-display

Chipset	Qualcomm Snapdragon 860	Samsung Exynos 2100
Max clock	2960 MHz	2900 MHz
CPU cores	8 (1 + 3 + 4)	8 (1 + 3 + 4)
Architecture	- 4 cores at 1.8 GHz: Cortex-A55 (Kryo 485 Silver) - 3 cores at 2.42 GHz: Cortex-A76 (Kryo 485 Gold) - 1 core at 2.96 GHz: Cortex-A76 (Kryo 485 Prime)	- 4 cores at 2.2 GHz: Cortex-A55 - 3 cores at 2.81 GHz: Cortex-A78 - 1 core at 2.91 GHz: Cortex-X1
L3 cache	2 MB	-
Lithography process	7 nanometers	5 nanometers
Graphics	Adreno 640	Mali-G78 MP14
GPU shading units	768	896
GPU clock	675 MHz	854 MHz
FLOPS	~1036.8 GFLOPS	~1530.4 GFLOPS

CPU	180108	150223
GPU	155187	340353
Memory	134861	151885
UX	160808	158712
Total score	634660	806977

Max surface temperature	44.1 °C	38.9 °C
Stability	97%	66%
Graphics test	20 FPS	34 FPS
Graphics score	3456	5714

Web score	7980	12591
Video editing	6193	7113
Photo editing	21814	29385
Data manipulation	8636	10438
Writing score	12480	16561

RAM size	6, 8 GB	8 GB
Memory type	LPDDR4X	LPDDR5
Memory clock	2133 MHz	2750 MHz
Channels	2	2

Storage size	128, 256 GB	128, 256 GB
Storage type	UFS 3.1	UFS 3.1
Memory card	MicroSD	No
Memory card max size	Up to 1024 GB	-

Operating system	Android 11 (Can be upgraded to Android 13)	Android 11 (Can be upgraded to Android 13)
ROM	MIUI 14	One UI 5.1
OS size	13 GB	28.1 GB

Capacity	5160 mAh	4000 mAh
Max charge power	33 W	25 W
Battery type	Li-Po	Li-Ion
Replaceable	No	No
Wireless charging	No	Yes (15 W)
Reverse charging	No	Yes, (wireless)
Fast charging	Yes (55% in 30 min)	Yes (55% in 50 min)
Full charging time	1:15 hr	1:35 hr

Battery life tests
Web browsing	11:51 hr	07:27 hr
Watching video	10:33 hr	12:26 hr
Gaming	05:14 hr	04:31 hr
Standby	119 hr	92 hr

Main camera
Matrix	48 megapixels	12 megapixels
Image resolution	8000 x 6000	4000 x 3000
Zoom	Digital	Optical, 1.1x
Flash	Dual LED	Dual LED
Stabilization	Digital	Optical
8K video recording	No	Up to 24FPS
4K video recording	Up to 30FPS	Up to 60FPS
1080p video recording	Up to 60FPS	Up to 60FPS
Slow motion	960 FPS (1080p)	960 FPS (720p)
Angle of widest lens	119°	120°
Lenses	4 (48 MP + 8 MP + 2 MP + 2 MP)	3 (12 MP + 64 MP + 12 MP)
Wide (main) lens	- 48 MP - Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/2.0", Sony IMX582 (Exmor-RS CMOS) - Phase autofocus	- 12 MP - Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 1.8 micron - Sensor: 1/1.76", Sony IMX555 (Exmor-RS CMOS) - Phase autofocus (Dual Pixel) - Optical stabilization
Telephoto lens	-	- 64 MP - Aperture: f/2.0 - Focal length: 28 mm - Pixel size: 0.8 micron - Sensor: 1/1.72", Samsung Bright S5KGW2 (ISOCELL Plus CMOS) - Phase autofocus (Dual Pixel) - Optical stabilization
Ultra-wide lens	- 8 MP - Aperture: f/2.2 - Pixel size: 1.12 micron	- 12 MP - Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.4 micron - Sensor: 1/2.55", Sony IMX563 (Exmor-RS CMOS) - Phase autofocus (Dual Pixel)
Macro lens	- 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron	-
Depth lens	- 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron	-
Camera features	- Bokeh mode - Pro mode	- Bokeh mode - Pro mode - RAW support
Samples	-	Photo samples of Samsung Galaxy S21 from DxOMark

Selfie camera
Megapixels	20 megapixels	10 megapixels
Image resolution	5480 x 3648	3872 x 2592
Aperture	f/2.2	f/2.2
Focal length	25 mm	26 mm
Pixel size	0.8 microns	1.22 microns
Sensor type	CMOS	CMOS
Sensor size	1/3.4"	1/3.24"
Video resolution	1080p (Full HD) at 30 FPS	2160p (4K) at 60 FPS

Wi-Fi standard	Wi-Fi 5 (802.11 a/b/g/n/ac)	Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features	- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display	- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display
Bluetooth version	5	5
Bluetooth features	LE, A2DP	LE, A2DP
USB type	USB Type-C	USB Type-C
USB version	2	3.2
USB features	- Charging - USB-Storage mode - USB-Host mode - OTG	- Charging - USB-Storage mode - USB-Host mode - OTG
GPS	GPS, GLONASS, Beidou, Galileo	GPS, GLONASS, Beidou, Galileo
NFC *	Yes	Yes
Infrared port	Yes	No

Number of SIM *	2	2
Type of SIM card	Nano	Nano
Multi SIM mode	Standby	Standby
eSIM support *	No	Yes
Hybrid slot	Yes	No
LTE Cat *	20	24
5G support	No	Yes

Speakers	Stereo	Stereo
Headphone audio jack	Yes	No
FM radio	Yes	No
Dolby Atmos	No	Yes

Category	Mid-range	Flagship
Announced	March 2021	January 2021
Release date	April 2021	February 2021
SAR (head)	-	0.46 W/kg
SAR (body)	-	1.51 W/kg
Sensors	- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint	- Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint

Xiaomi Poco X3 Pro vs Samsung Galaxy S21

Xiaomi Poco X3 Pro vs Samsung Galaxy S21

Key differences

Review

Value for money

Tests and specifications

Display

Design and build

Performance

Benchmarks

Memory

Software

Battery

Camera

DxOMark camera tests

Connectivity

Sound

Other

Conclusion