Home Phone comparison Samsung Galaxy M51 and Samsung Galaxy S25 FE - Which is better?

Samsung Galaxy M51 vs Samsung Galaxy S25 FE

53 out 100
Samsung Galaxy M51
VS
80 out 100
Samsung Galaxy S25 FE
Samsung Galaxy M51
Samsung Galaxy S25 FE

Compared 2 smartphones : Samsung Galaxy M51 Manufactured in September, 2020, with display 6.7 with chipsetQualcomm Snapdragon 730G, vs Samsung Galaxy S25 FE, Manufactured in September, 2025 with chipsetSamsung Exynos 2400. 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 Samsung Galaxy M51
  • Higher pixel density: 393ppi
  • Higher battery capacity: 7000mAh vs 4900mAh
Reasons to choose Samsung Galaxy S25 FE
  • Higher refresh rate: 120Hz
  • Lighter design: 190g vs 213g
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

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

Review

Key Specs Samsung Galaxy M51 and Samsung Galaxy S25 FE
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:
Samsung Galaxy M51
vs
Samsung Galaxy S25 FE

Display

Display quality comparison
Type Super AMOLED Dynamic AMOLED
Size 6.7 in 6.7 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 393 ppi 385 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 650 nits 1300 nits
HDR support No Yes, HDR10+
Screen-to-body ratio 86.6 % 89.2 %
Features Always-On Display - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Samsung Galaxy M51
675 nits
Samsung Galaxy S25 FE
n/a
sRGB gamut97.6 %n/a
PWM (Flicker)255 Hzn/a
Response time8 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy M51]

Design & Build

Design and ergonomics comparison
Height 163.9 mm (6.45 in) 161.3 mm (6.35 in)
Width 76.3 mm (3 in) 76.6 mm (3.02 in)
Thickness 9.5 mm (0.37 in) 7.4 mm (0.29 in)
Weight 213 g (7.51 oz) 190 g (6.7 oz)
Water resistance No IP68
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - White
- Black		 - White
- Black
- Gray
- Blue
- Yellow
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Samsung Galaxy M51
86.6 %
Samsung Galaxy S25 FE
89.2 %

Performance

Testing Samsung Galaxy M51 and Samsung Galaxy S25 FE In benchmarks
Processor
Chipset Qualcomm Snapdragon 730G Samsung Exynos 2400
Max Frequency 2200 MHz 3200 MHz
CPU Cores 8 (2 + 6) 10 (1 + 2 + 3 + 4)
Architecture - 6/1.8 (Kryo 470 Silver (Cortex-A55))
- 2/2.2 (Kryo 470 Gold (Cortex-A76))		 - 4/1.95 (Cortex-A520)
- 3/2.6 (Cortex-A720)
- 2/2.9 (Cortex-A720)
- 1/3.21 (Cortex-X4)
Process Samsung Samsung
Transistor Size 8 nm 4 nm
Neural Processor Qualcomm Hexagon 688 Yes
Graphics Adreno 618 Samsung Xclipse 940
GPU Cores 256 768
GPU Frequency 700 MHz 1095 MHz
FLOPS 358.4 GFLOPS 3406.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy M51
671
Samsung Galaxy S25 FE
2116
Geekbench 6 (Multi-Core)
Samsung Galaxy M51
1799
Samsung Galaxy S25 FE
7035
Geekbench 6 (Single-Core)6712116
Geekbench 6 (Multi-Core)17997035
Geekbench Compute (GPU)n/a18270
Sources: Geekbench v6 [Samsung Galaxy S25 FE]
AnTuTu 10
AnTuTu 10
Samsung Galaxy M51
323135
Samsung Galaxy S25 FE
1801002
CPU111824429356
GPU66059715844
Memory60319352083
UX84933303719
NanoReview Score3231351801002
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy M51
738
Samsung Galaxy S25 FE
n/a
Max Surface Temp.48.2 °Cn/a
Stability97 %n/a
Graphics Test4 fpsn/a
Graphics Score738n/a
Sources: 3DMark [Samsung Galaxy M51]

Memory

RAM
RAM Size - 6 GB
- 8 GB		 8 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz n/a
Channels 2 4
Storage
Storage Capacity128 GB128 GB
Storage TypeUFS 2.1UFS 4.0
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 16
OS Size 22 GB 23.8 GB
UI Skin One UI 4.1 One UI 8.0

Battery

Volume 7000 mAh 4900 mAh
Max Charging Power 25 W 45 W
Battery Type Li-ion Li-ion
Removable No No
Wireless Charging No Yes (25 W)
Reverse Charging Yes Yes, (Wireless)
Fast Charging Yes (35% in 30 min) Yes (65% in 30 min)
Full Charge Time 1:47 h n/a
Battery Life Test
Battery Life
Samsung Galaxy M51
31:29
Samsung Galaxy S25 FE
n/a
Web Browsing12:03 hn/a
Video Playback16:42 hn/a
Games06:23 hn/a
Standby Mode171 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9248x6920 pixels 8160x6120 pixels
Zoom Digital Optical, 3x
Flash LED LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
Slow Motion 240 fps (720p) 960 fps (720p)
Wide-angle lens 123 ° 123 °
Lenses count Standard: 64 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Telephoto: 8 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix64 MP50 MP
Aperturef/1.8f/1.8
Focal length26 mm24 mm
SensorSony IMX682n/a
Sensor size1/1.71/1.57
Pixel size0.8 μm1 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Telephoto
Matrixn/a8 MP
Aperturen/af/2.4
Focal lengthn/a75 mm
Sensor sizen/a1/4.4
Pixel sizen/a1 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix12 MP12 MP
Aperturef/2.2f/2.2
Focal lengthn/a13 mm
SensorSamsung S5K3L6n/a
Sensor size1/3.11/3.0
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 12 MP
Photo resolution 6464x4864 pixels n/a
Aperture f/2.2 f/2.2
Focal length 26 mm 26 mm
Sensor Sony IMX616 CMOS
Sensor size 1/2.8 1/3.2
Pixel size 0.8 μm 1.12 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 6E (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 5.4
Bluetooth features LE, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900GSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA B1 (2100), B2 (1900), B4(AWS), B5(850), B8 (900)UMTS B1(2100), B2(1900), B4(AWS), B5(850), B8(900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B26/B28/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B25/B26/B28/B32/B66)
LTE category1520
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy M51
89.9 dB
Samsung Galaxy S25 FE
n/a

Other

Class Mid-range Flagship
Announced August, 2020 yr September, 2025 yr
Release Date September, 2020 yr September, 2025 yr
Launch Price ($) 340 n/a
MSRP ($) n/a 649
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S25 FE the clear winner in this comparison.

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