Xiaomi Poco X4 Pro 5G vs Samsung Galaxy A51

Compared 2 smartphones : Xiaomi Poco X4 Pro 5G Manufactured in March, 2022, with display 6.67 with chipsetQualcomm Snapdragon 695, vs Samsung Galaxy A51, Manufactured in December, 2019 with chipsetSamsung Exynos 9 Octa 9611. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Poco X4 Pro 5G
  • Larger display: 6.67in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy A51
  • Higher pixel density: 405ppi
  • Lighter design: 172g vs 205g

Versions

Available versions and configurations
Memory Options - 6/64 GB
- 6/128 GB
- 6/256 GB
- 8/128 GB
- 8/256 GB
- 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Xiaomi Poco X4 Pro 5G and Samsung Galaxy A51
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison

Display

Display quality comparison
Type AMOLED Super AMOLED
Size 6.67 in 6.5 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 395 ppi 405 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 700 nits 400 nits
HDR support No No
Touch Sampling Rate 360 Hz n/a
Screen-to-body ratio 85.9 % 87.5 %
Features - DCI-P3
- Always-On Display
Always-On Display
Display test
Peak brightness (auto)
Xiaomi Poco X4 Pro 5G
752 nits
Samsung Galaxy A51
631 nits
sRGB gamut89.4 %98.8 %
PWM (Flicker)479 Hz242 Hz
Response time1 ms25 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 164.19 mm (6.46 in) 158.5 mm (6.24 in)
Width 76.1 mm (3 in) 73.6 mm (2.9 in)
Thickness 8.12 mm (0.32 in) 7.9 mm (0.31 in)
Weight 205 g (7.23 oz) 172 g (6.07 oz)
Water resistance IP53 No
Back panel Glass Plastic
Frame Plastic Plastic
Colors - Black
- Blue
- Yellow
- White
- Black
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Xiaomi Poco X4 Pro 5G
85.9 %
Samsung Galaxy A51
87.5 %

Performance

Testing Xiaomi Poco X4 Pro 5G and Samsung Galaxy A51 In benchmarks
Processor
Chipset Qualcomm Snapdragon 695 Samsung Exynos 9 Octa 9611
Max Frequency 2200 MHz 2300 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Kryo 660 Silver (Cortex-A55))
- 2/2.2 (Kryo 660 Gold (Cortex-A78))
- 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process TSMC Samsung
Transistor Size 6 nm 10 nm
Neural Processor Hexagon 686 Yes
Graphics Adreno 619 Mali-G72 MP3
GPU Cores 256 54
GPU Frequency 950 MHz 850 MHz
FLOPS 430.1 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X4 Pro 5G
916
Samsung Galaxy A51
512
Geekbench 6 (Multi-Core)
Xiaomi Poco X4 Pro 5G
2122
Samsung Galaxy A51
1556
Geekbench 6 (Single-Core)916512
Geekbench 6 (Multi-Core)21221556
AnTuTu 10
AnTuTu 10
Xiaomi Poco X4 Pro 5G
432868
Samsung Galaxy A51
268760
CPU14472483857
GPU8326545166
Memory9821263828
UX10666775909
NanoReview Score432868268760
3DMark Wild Life
3DMark Wild Life
Xiaomi Poco X4 Pro 5G
1200
Samsung Galaxy A51
812
Max Surface Temp.38.1 °C42.2 °C
Stability99 %95 %
Graphics Test7 fps4 fps
Graphics Score1200812
PCMark 3.0
PCMark 3.0
Xiaomi Poco X4 Pro 5G
8274
Samsung Galaxy A51
n/a
Writing score10885n/a
Web score7057n/a
Video editing4065n/a
Data manipulation7763n/a
NanoReview Score8274n/a

Memory

RAM
RAM Size - 6 GB
- 8 GB
- 4 GB
- 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 64 GB
- 128 GB
Storage TypeUFS 2.2UFS 2.0
Memory CardMicroSDMicroSD

Software

OS Android 11 (Upgradeable to Android 13) Android 10 (Upgradeable to Android 13)
OS Size 26 GB 23 GB
UI Skin HyperOS 1.0 One UI 5.1

Battery

Volume 5000 mAh 4000 mAh
Max Charging Power 67 W 15 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (75% in 30 min) Yes (40% in 35 min)
Full Charge Time 0:49 h 1:50 h
Battery Life Test
Battery Life
Xiaomi Poco X4 Pro 5G
21:25
Samsung Galaxy A51
17:53
Web Browsing07:50 h07:15 h
Video Playback12:38 h11:25 h
Games05:34 h04:49 h
Standby Mode110 h81 h

Main camera

Matrix 108 MP 48 MP
Photo resolution 12032x9024 pixels 8000x6000 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No Yes (Up to 30 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (720p) 960 fps (720p)
Wide-angle lens 118 ° 120 °
Lenses count Standard: 108 MP
Ultra-wide: 8 MP
Macro: 2 MP
Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
Main lens
Matrix108 MP48 MP
Aperturef/1.9f/2.0
Focal length26 mm26 mm
SensorSamsung S5KHM2Sony IMX582
Sensor size1/1.521/2
Pixel size0.7 μm0.8 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal length26 mm13 mm
SensorSony IMX355n/a
Sensor size1/2.8n/a
Pixel size1.14 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 16 MP 32 MP
Photo resolution 4608x3456 pixels 6560x4928 pixels
Aperture f/2.5 f/2.2
Focal length n/a 26 mm
Sensor Omnivision OV16A1Q Samsung S5KGD1
Sensor size 1/3.06 1/2.8
Pixel size 1 μm 0.8 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.1 5
Bluetooth features LE, A2DP PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotYesNo
2G BandsGSM 850 900 1800 1900MHzGSM 850 / 900 / 1800 / 2100 / 2600
3G BandsWCDMA 1, 2, 4, 5, 8, 6, 19UMTS 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B38/B40/B41)LTE (B850/B900/B1800/B2100/B2600)
LTE category1812
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi Poco X4 Pro 5G
87.2 dB
Samsung Galaxy A51
81.7 dB

Other

Class Mid-range Mid-range
Announced February, 2022 yr December, 2019 yr
Release Date March, 2022 yr December, 2019 yr
Launch Price ($) 250 399
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Poco X4 Pro 5G the clear winner in this comparison.

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