Home Phone comparison Xiaomi Poco X7 and Samsung Galaxy A51 - Which is better?

Xiaomi Poco X7 vs Samsung Galaxy A51

66 out 100
Xiaomi Poco X7
VS
41 out 100
Samsung Galaxy A51
Xiaomi Poco X7
Samsung Galaxy A51

Compared 2 smartphones : Xiaomi Poco X7 Manufactured in January, 2025, with display 6.67 with chipsetMediaTek Dimensity 7300 Ultra, vs Samsung Galaxy A51, Manufactured in December, 2019 with chipsetSamsung Exynos 9 Octa 9611. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi Poco X7
  • Larger display: 6.67in
  • Higher pixel density: 446ppi
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5110mAh vs 4000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Infrared port
  • Built-in eSIM
  • Includes charger
Reasons to choose Samsung Galaxy A51
  • Lighter design: 172g vs 185.5g

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/512 GB		 - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Xiaomi Poco X7 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
Smartphones:
Xiaomi Poco X7
vs
Samsung Galaxy A51

Display

Display quality comparison
Type AMOLED Super AMOLED
Size 6.67 in 6.5 in
Resolution 1220x2712 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 446 ppi 405 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes No
Max brightness 1200 nits 400 nits
HDR support Yes Dolby Vision No
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 88.9 % 87.5 %
Features - DCI-P3
- Always-On Display
- DC dimming		 Always-On Display
Display test
Peak brightness (auto)
Xiaomi Poco X7
1107 nits
Samsung Galaxy A51
631 nits
sRGB gamut100 %98.8 %
PWM (Flicker)120 Hz242 Hz
Response time1 ms25 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Xiaomi Poco X7], [Samsung Galaxy A51]

Design & Build

Design and ergonomics comparison
Height 162.33 mm (6.39 in) 158.5 mm (6.24 in)
Width 74.42 mm (2.93 in) 73.6 mm (2.9 in)
Thickness 8.4 mm (0.33 in) 7.9 mm (0.31 in)
Weight 185.5 g (6.54 oz) 172 g (6.07 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Silver
- Green		 - White
- Black
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi Poco X7
88.9 %
Samsung Galaxy A51
87.5 %

Performance

Testing Xiaomi Poco X7 and Samsung Galaxy A51 In benchmarks
Processor
Chipset MediaTek Dimensity 7300 Ultra Samsung Exynos 9 Octa 9611
Max Frequency 2500 MHz 2300 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/2 (Cortex-A55)
- 4/2.5 (Cortex-A78)		 - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process TSMC Samsung
Transistor Size 4 nm 10 nm
Neural Processor MediaTek APU 655 Yes
Graphics Mali-G615 MP2 Mali-G72 MP3
GPU Cores 256 54
GPU Frequency 1047 MHz 850 MHz
FLOPS 536.1 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X7
1031
Samsung Galaxy A51
512
Geekbench 6 (Multi-Core)
Xiaomi Poco X7
2842
Samsung Galaxy A51
1556
Geekbench 6 (Single-Core)1031512
Geekbench 6 (Multi-Core)28421556
Geekbench Compute (GPU)2507n/a
Sources: Geekbench v6 [Xiaomi Poco X7]
AnTuTu 10
AnTuTu 10
Xiaomi Poco X7
675069
Samsung Galaxy A51
268760
CPU20319483857
GPU14333845166
Memory15927563828
UX16926275909
NanoReview Score675069268760
3DMark Wild Life
3DMark Wild Life
Xiaomi Poco X7
n/a
Samsung Galaxy A51
812
Max Surface Temp.n/a42.2 °C
Stabilityn/a95 %
Graphics Testn/a4 fps
Graphics Scoren/a812
Sources: 3DMark [Samsung Galaxy A51]

Memory

RAM
RAM Size - 8 GB
- 12 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
- 512 GB		- 64 GB
- 128 GB
Storage TypeUFS 2.2UFS 2.0
Memory CardNoMicroSD

Software

OS Android 14 Android 10 (Upgradeable to Android 13)
OS Size n/a 23 GB
UI Skin HyperOS 1.0 One UI 5.1

Battery

Volume 5110 mAh 4000 mAh
Max Charging Power 45 W 15 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (62% in 30 min) Yes (40% in 35 min)
Full Charge Time 1:05 h 1:50 h
Battery Life Test
Battery Life
Xiaomi Poco X7
19:25
Samsung Galaxy A51
17:53
Web Browsing06:50 h07:15 h
Video Playback10:59 h11:25 h
Games05:14 h04:49 h
Standby Mode104 h81 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8192x6144 pixels 8000x6000 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Optical Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (720p) 960 fps (720p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 50 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
Matrix50 MP48 MP
Aperturef/1.5f/2.0
Focal length26 mm26 mm
SensorSony IMX882Sony IMX582
Sensor size1/1.961/2
Pixel size0.8 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal length15 mm13 mm
SensorSony IMX355n/a
Sensor size1/4.0n/a
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 20 MP 32 MP
Photo resolution 5184x3888 pixels 6560x4928 pixels
Aperture f/2.2 f/2.2
Focal length 25 mm 26 mm
Sensor Omnivision OV20B Samsung S5KGD1
Sensor size 1/4.0 1/2.8
Pixel size 0.7 μm 0.8 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5
Bluetooth features LE 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
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 2/3/5/8GSM 850 / 900 / 1800 / 2100 / 2600
3G BandsWCDMA B1/2/4/5/6/8/19UMTS 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B28/B38/B40/B41/B42/B48/B66)LTE (B850/B900/B1800/B2100/B2600)
LTE categoryn/a12
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi Poco X7
91.4 dB
Samsung Galaxy A51
81.7 dB

Other

Class Mid-range Mid-range
Announced January, 2025 yr December, 2019 yr
Release Date January, 2025 yr December, 2019 yr
Launch Price ($) 229 399
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 45 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Poco X7 the clear winner in this comparison.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below