Samsung Galaxy A51 vs Xiaomi Poco M8 5G

Compared 2 smartphones : Samsung Galaxy A51 Manufactured in December, 2019, with display 6.5 with chipsetSamsung Exynos 9 Octa 9611, vs Xiaomi Poco M8 5G, Manufactured in January, 2026 with chipsetQualcomm Snapdragon 6 Gen 3. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy A51
  • Higher pixel density: 405ppi
  • Lighter design: 172g vs 178g
  • Supports Dolby Atmos
Reasons to choose Xiaomi Poco M8 5G
  • Larger display: 6.77in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5520mAh vs 4000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Infrared port

Versions

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

Review

Key Specs Samsung Galaxy A51 and Xiaomi Poco M8 5G
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.
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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 Super AMOLED AMOLED
Size 6.5 in 6.77 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 405 ppi 388 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 400 nits 800 nits
HDR support No Yes, HDR10+
Screen-to-body ratio 87.5 % 89.7 %
Features Always-On Display DCI-P3
Display test
Peak brightness (auto)
Samsung Galaxy A51
631 nits
Xiaomi Poco M8 5G
n/a
sRGB gamut98.8 %n/a
PWM (Flicker)242 Hzn/a
Response time25 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 158.5 mm (6.24 in) 164 mm (6.46 in)
Width 73.6 mm (2.9 in) 75.4 mm (2.97 in)
Thickness 7.9 mm (0.31 in) 7.4 mm (0.29 in)
Weight 172 g (6.07 oz) 178 g (6.28 oz)
Water resistance No IP65
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - White
- Black
- Black
- Silver
- Green
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Samsung Galaxy A51
87.5 %
Xiaomi Poco M8 5G
89.7 %

Performance

Testing Samsung Galaxy A51 and Xiaomi Poco M8 5G In benchmarks
Processor
Chipset Samsung Exynos 9 Octa 9611 Qualcomm Snapdragon 6 Gen 3
Max Frequency 2300 MHz 2400 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
- 4/1.8 (Cortex-A55)
- 4/2.4 (Cortex-A78)
Process Samsung Samsung
Transistor Size 10 nm 4 nm
Neural Processor Yes Hexagon
Graphics Mali-G72 MP3 Adreno 710
GPU Cores 54 256
GPU Frequency 850 MHz 1010 MHz
FLOPS 113.8 GFLOPS 517.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A51
512
Xiaomi Poco M8 5G
1020
Geekbench 6 (Multi-Core)
Samsung Galaxy A51
1556
Xiaomi Poco M8 5G
2853
Geekbench 6 (Single-Core)5121020
Geekbench 6 (Multi-Core)15562853
AnTuTu 10
AnTuTu 10
Samsung Galaxy A51
268760
Xiaomi Poco M8 5G
638701
CPU83857197012
GPU45166145492
Memory63828145821
UX75909150376
NanoReview Score268760638701
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A51
812
Xiaomi Poco M8 5G
n/a
Max Surface Temp.42.2 °Cn/a
Stability95 %n/a
Graphics Test4 fpsn/a
Graphics Score812n/a

Memory

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

Software

OS Android 10 (Upgradeable to Android 13) Android 15
OS Size 23 GB n/a
UI Skin One UI 5.1 HyperOS 2.0

Battery

Volume 4000 mAh 5520 mAh
Max Charging Power 15 W 45 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes (40% in 35 min) Yes
Full Charge Time 1:50 h n/a
Battery Life Test
Battery Life
Samsung Galaxy A51
17:53
Xiaomi Poco M8 5G
n/a
Web Browsing07:15 hn/a
Video Playback11:25 hn/a
Games04:49 hn/a
Standby Mode81 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (720p) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP
Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
Main lens
Matrix48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mmn/a
SensorSony IMX582Omnivision OV50D40 Light Hunter 400
Sensor size1/21/2.88 (0.35)
Pixel size0.8 μm0.61 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrix12 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 32 MP 20 MP
Photo resolution 6560x4928 pixels n/a
Aperture f/2.2 f/2.2
Focal length 26 mm n/a
Sensor Samsung S5KGD1 n/a
Sensor size 1/2.8 n/a
Pixel size 0.8 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 1080p (Full HD) at 60 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 5.1
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE
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 n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Varies by region
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 2100 / 2600n/a
3G BandsUMTS 850 / 900 / 1900 / 2100n/a
LTE Bands*LTE (B850/B900/B1800/B2100/B2600)n/a
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes Yes
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Samsung Galaxy A51
81.7 dB
Xiaomi Poco M8 5G
n/a

Other

Class Mid-range Mid-range
Announced December, 2019 yr January, 2026 yr
Release Date December, 2019 yr January, 2026 yr
Launch Price ($) 399 n/a
MSRP ($) n/a 229
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Poco M8 5G the clear winner in this comparison.

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