Samsung Galaxy A51 vs Galaxy A25

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Samsung Galaxy A51 vs Galaxy A25

44 out of 100
Samsung Galaxy A51
VS
57 out of 100
Samsung Galaxy A25

Here we compared two mid-range smartphones: the 6.5-inch Samsung Galaxy A51 (with Exynos 9 Octa 9611) that was released on December 12, 2019, against the Samsung Galaxy A25, which is powered by Exynos 1280 and came out 4 years after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy A51
  • Slow-motion recording at 960FPS
  • Weighs 25 grams less
  • The front-facing camera can record video at 4K
Reasons to consider the Samsung Galaxy A25
  • Higher display refresh rate – 120 Hz
  • 74% better performance in AnTuTu Benchmark (480K versus 276K)
  • Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
  • Delivers 63% higher peak brightness (1038 against 637 nits)
  • Newer Bluetooth version (v5.3)
  • Optical image stabilization
  • More energy-efficient CPU – Exynos 1280
  • The phone is 4 years newer
  • Stereo speakers
  • Has 33% more RAM: 8GB versus 6GB
  • More recent OS version: Android 14 versus 13
  • Supports higher wattage charging (25W versus 15W)

Review

Evaluation of Samsung Galaxy A51 and Galaxy A25 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
NanoReview Score
Final comparison evaluation
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.

Tests and specifications

Comparison table of technical specifications and tests

Display

TypeSuper AMOLEDSuper AMOLED
Size6.5 inches6.5 inches
Resolution1080 x 2400 pixels1080 x 2340 pixels
Aspect ratio20:919.5:9
PPI405 ppi396 ppi
Refresh rate60 Hz120 Hz
Adaptive refresh rateNoNo
Max rated brightness400 nits1000 nits
HDR supportNoNo
Screen protectionCorning Gorilla Glass 3Corning Gorilla Glass 5
Screen-to-body ratio87.5%84.2%
Display features - Always-On Display - DCI-P3
- Always-On Display
Display tests
RGB color space98.8%145.1%
PWM242 Hz119 Hz
Response time25 ms1 ms
Contrast∞ Infinity∞ Infinity
Peak brightness test (auto)
637 nits
1038 nits

Design and build

Height158.5 mm (6.24 inches)161 mm (6.34 inches)
Width73.6 mm (2.9 inches)76.5 mm (3.01 inches)
Thickness7.9 mm (0.31 inches)8.3 mm (0.33 inches)
Weight172 g (6.07 oz)197 g (6.95 oz)
WaterproofNoNo
Rear materialPlasticPlastic
Frame materialPlasticPlastic
ColorsWhite, BlackBlack, Blue, Yellow
Fingerprint scannerYes, in-displayYes, in-button
Screen-to-body ratio

Performance

Tests of Samsung Galaxy A51 and Samsung Galaxy A25 in the benchmarks
SoC
ChipsetSamsung Exynos 9 Octa 9611Samsung Exynos 1280
Max clock2300 MHz2400 MHz
CPU cores8 (4 + 4)8 (2 + 6)
Architecture- 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
- 6 cores at 2 GHz: Cortex-A55
- 2 cores at 2.4 GHz: Cortex-A78
ManufacturingSamsungSamsung
Lithography process10 nanometers5 nanometers
Neural processor (NPU)YesYes
GraphicsMali-G72 MP3Mali-G68 MP4
GPU shading units54256
GPU clock850 MHz972 MHz
FLOPS~113.8 GFLOPS~487 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
480563
CPU88502158444
GPU44652105626
Memory6672389882
UX76384126611
Total score276261480563
Samples[19 tests][21 tests]
3DMark Wild Life Performance
Max surface temperature42.2 °C45.6 °C
Stability95% -
Graphics test4 FPS -
Graphics score812 -

Memory

RAM
RAM size4, 6 GB6, 8 GB
Memory typeLPDDR4XLPDDR4X
Memory clock1866 MHz2133 MHz
Channels22
Storage
Storage size64, 128 GB128, 256 GB
Storage typeUFS 2.0UFS 2.2
Memory cardMicroSDMicroSD
Memory card max sizeUp to 512 GBUp to 1024 GB

Software

Operating systemAndroid 10 (Can be upgraded to Android 13)Android 14
ROMOne UI 5.1One UI 6
OS size23 GB20 GB

Battery

Capacity4000 mAh5000 mAh
Max charge power15 W25 W
Battery typeLi-PoLi-Ion
ReplaceableNoNo
Wireless chargingNo No
Reverse chargingNoNo
Fast chargingYes (40% in 35 min)Yes (49% in 30 min)
Full charging time1:50 hr1:24 hr
Battery life tests
Web browsing07:15 hr06:44 hr
Watching video11:25 hr11:34 hr
Gaming04:49 hr04:52 hr
Standby81 hr91 hr
General battery life
17:53 hr
18:26 hr

Main camera

Matrix48 megapixels50 megapixels
Image resolution8000 x 60008160 x 6120
ZoomDigitalDigital
FlashLEDLED
StabilizationDigitalOptical
8K video recordingNoNo
4K video recordingUp to 30FPSUp to 30FPS
1080p video recordingUp to 30FPSUp to 60FPS
Slow motion960 FPS (720p)240 FPS (720p)
Angle of widest lens120°120°
Lenses1) Standard: 48 MP
2) Ultrawide: 12 MP
3) Macro: 5 MP
4) Depth: 5 MP
1) Standard: 50 MP
2) Ultrawide: 8 MP
3) Macro: 2 MP
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Standard lens
Image resolution48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mm27 mm
SensorSony IMX582Samsung ISOCELL S5KJN1
Sensor size1/2"1/2.76"
Pixel size0.8 micron0.64 micron
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Image resolution12 MP8 MP
Aperturef/2.2f/2.2
Focal length13 mm -
Sensor - Samsung ISOCELL (S5K)4HA
Sensor size - 1/4"
Pixel size1.12 micron1.12 micron
StabilizationDigitalDigital
Macro lens
Image resolution5 MP2 MP
Aperturef/2.4f/2.4
Focal length40 mm -
Sensor - GalaxyCore GC02M1
Pixel size1.12 micron -
StabilizationDigitalNo

Selfie camera

Megapixels32 megapixels13 megapixels
Image resolution6560 x 49284160 x 3120
Aperturef/2.2f/2.2
Focal length26 mm -
SensorSamsung S5KGD1Hynix Hi-1339
Sensor size1/2.8"1/3.06"
Pixel size0.8 micron1.12 micron
AutofocusNoNo
StabilizationDigitalDigital
Video resolution2160p (4K) at 30 FPS1080p (Full HD) at 30 FPS
Depth sensor (TOF 3D)NoNo

Connectivity

Wi-Fi standardWi-Fi 5 (802.11 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 version55.3
Bluetooth featuresPBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DPLE
USB typeUSB Type-CUSB Type-C
USB version22
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPSGPS, GLONASS, Beidou, GalileoGPS, GLONASS, Beidou, Galileo
NFC*YesYes
Infrared portNoNo
Network
Number of SIM*22
Type of SIM cardNanoNano
Multi SIM modeStandbyStandby
eSIM support*NoNo
Hybrid slotNoYes
LTE Cat*1218
5G supportNoYes

Sound

SpeakersMonoStereo
Headphone audio jackYesYes
FM radioYesNo
Dolby AtmosYesYes
Speakers test
Max loudness
81.7 dB
79.6 dB

Other

CategoryMid-rangeMid-range
AnnouncedDecember 2019December 2023
Release dateDecember 2019December 2023
Launch price$399$299
SAR (head)0.596 W/kg0.46 W/kg
SAR (body)1.45 W/kg1.19 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger - Not included
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
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