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Samsung Galaxy A55 5G vs Galaxy A51

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Samsung Galaxy A55 5G vs Galaxy A51

71 out of 100
Samsung Galaxy A55 5G
VS
44 out of 100
Samsung Galaxy A51
Samsung Galaxy A55 5G
Samsung Galaxy A51

Here we compared two mid-range smartphones: the 6.6-inch Samsung Galaxy A55 5G (with Exynos 1480) that was released on March 11, 2024, against the Samsung Galaxy A51, which is powered by Exynos 9 Octa 9611 and came out 4 years and 3 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy A55 5G
  • Waterproof body (IP67 classification)
  • 2.6x better performance in AnTuTu Benchmark (729K versus 276K)
  • Higher display refresh rate – 120 Hz
  • Shows 49% longer battery life (26:41 vs 17:53 hours)
  • Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
  • Has 2x more RAM: 12GB versus 6GB
  • Delivers 59% higher peak brightness (1015 against 637 nits)
  • Newer Bluetooth version (v5.3)
  • Optical image stabilization
  • The phone is 4 years and 3 months newer
  • More energy-efficient CPU – Exynos 1480
  • Uses a faster type of memory: LPDDR5 3200 MHz
  • Compatible with Wi-Fi 6 wireless networks
Reasons to consider the Samsung Galaxy A51
  • Slow-motion recording at 960FPS
  • Weighs 41 grams less
  • Includes a 3.5 mm headphone audio jack port

Review

Evaluation of Samsung Galaxy A55 5G and Galaxy A51 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
Phone:
Galaxy A55 5G
vs
Galaxy A51

Display

TypeSuper AMOLEDSuper AMOLED
Size6.6 inches6.5 inches
Resolution1080 x 2340 pixels1080 x 2400 pixels
Aspect ratio19.5:920:9
PPI390 ppi405 ppi
Refresh rate120 Hz60 Hz
Adaptive refresh rateYes (60-120 Hz)No
Max rated brightness1000 nits400 nits
HDR supportYes, HDR10+No
Touch sampling rate240 Hz -
Screen protectionGorilla Glass Victus PlusCorning Gorilla Glass 3
Screen-to-body ratio85.8%87.5%
Display features - DCI-P3
- Always-On Display		 - Always-On Display
Display tests
RGB color space100%98.8%
PWM120 Hz242 Hz
Response time1 ms25 ms
Contrast∞ Infinity∞ Infinity
Peak brightness test (auto)
Galaxy A55 5G+59%
1015 nits
Galaxy A51
637 nits

Design and build

Height161.1 mm (6.34 inches)158.5 mm (6.24 inches)
Width77.4 mm (3.05 inches)73.6 mm (2.9 inches)
Thickness8.2 mm (0.32 inches)7.9 mm (0.31 inches)
Weight213 g (7.51 oz)172 g (6.07 oz)
WaterproofIP67No
Advanced coolingVapor chamber -
Rear materialGlassPlastic
Frame materialMetalPlastic
ColorsWhite, Blue, Purple, YellowWhite, Black
Fingerprint scannerYes, in-displayYes, in-display
Screen-to-body ratio

Performance

Tests of Samsung Galaxy A55 5G and Samsung Galaxy A51 in the benchmarks
SoC
ChipsetSamsung Exynos 1480Samsung Exynos 9 Octa 9611
Max clock2750 MHz2300 MHz
CPU cores8 (4 + 4)8 (4 + 4)
Architecture- 4 cores at 2 GHz: Cortex-A55
- 4 cores at 2.75 GHz: Cortex-A78		- 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
L3 cache4 MB -
ManufacturingSamsungSamsung
Lithography process4 nanometers10 nanometers
Neural processor (NPU)YesYes
GraphicsSamsung Xclipse 530Mali-G72 MP3
GPU shading units12854
GPU clock1300 MHz850 MHz
FLOPS~332.8 GFLOPS~113.8 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
Galaxy A55 5G+164%
729255
Galaxy A51
276261
CPU24536788502
GPU17154444652
Memory15150366723
UX16084176384
Total score729255276261
Samples[35 tests][19 tests]
3DMark Wild Life Performance
Max surface temperature43.8 °C42.2 °C
Stability - 95%
Graphics test23 FPS4 FPS
Graphics score3899812
PCMark 3.0
Web score11712 -
Video editing7299 -
Photo editing23519 -
Data manipulation11337 -
Writing score17127 -

Memory

RAM
RAM size8, 12 GB4, 6 GB
Memory typeLPDDR5LPDDR4X
Memory clock3200 MHz1866 MHz
Channels42
Storage
Storage size128, 256 GB64, 128 GB
Storage typeUFS 3.1UFS 2.0
Memory cardMicroSDMicroSD
Memory card max sizeUp to 1024 GBUp to 512 GB

Software

Operating systemAndroid 14 Android 10 (Can be upgraded to Android 13)
ROMOne UI 6.1One UI 5.1
OS size20.1 GB23 GB

Battery

Capacity5000 mAh4000 mAh
Max charge power25 W15 W
Battery typeLi-IonLi-Po
ReplaceableNoNo
Wireless chargingNo No
Reverse chargingNoNo
Fast chargingYes (55% in 30 min)Yes (40% in 35 min)
Full charging time1:03 hr1:50 hr
Battery life tests
Web browsing10:24 hr07:15 hr
Watching video17:52 hr11:25 hr
Gaming05:16 hr04:49 hr
Standby125 hr81 hr
General battery life
Galaxy A55 5G+49%
26:41 hr
Galaxy A51
17:53 hr

Main camera

Matrix50 megapixels48 megapixels
Image resolution8160 x 61208000 x 6000
ZoomDigitalDigital
FlashLEDLED
StabilizationOpticalDigital
8K video recordingNoNo
4K video recordingUp to 30FPSUp to 30FPS
1080p video recordingUp to 60FPSUp to 30FPS
Slow motion240 FPS (720p)960 FPS (720p)
Angle of widest lens123°120°
Lenses1) Standard: 50 MP
2) Ultrawide: 12 MP
3) Macro: 5 MP
1) Standard: 48 MP
2) Ultrawide: 12 MP
3) Macro: 5 MP
4) Depth: 5 MP
Camera features - Bokeh mode
- Pro mode		 - Bokeh mode
- Pro mode
Standard lens
Image resolution50 MP48 MP
Aperturef/1.8f/2.0
Focal length - 26 mm
SensorSony IMX906Sony IMX582
Sensor size1/1.56"1/2"
Pixel size1 micron0.8 micron
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Image resolution12 MP12 MP
Aperturef/2.2f/2.2
Focal length - 13 mm
SensorSony IMX258 -
Sensor size1/3.06" -
Pixel size1.12 micron1.12 micron
StabilizationDigitalDigital
Macro lens
Image resolution5 MP5 MP
Aperturef/2.4f/2.4
Focal length - 40 mm
SensorGalaxyCore GC5035 -
Sensor size1/5" -
Pixel size1.12 micron1.12 micron
StabilizationDigitalDigital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh45 -
Preview54 -
Zoom75 -
SamplesPhoto samples of Samsung Galaxy A55 5G from DxOMark -

Selfie camera

Megapixels32 megapixels32 megapixels
Image resolution6464 x 48646560 x 4928
Aperturef/2.2f/2.2
Focal length26 mm26 mm
SensorSony IMX616Samsung S5KGD1
Sensor size1/2.74"1/2.8"
Pixel size0.8 micron0.8 micron
AutofocusNoNo
StabilizationDigitalDigital
Video resolution2160p (4K) at 30 FPS2160p (4K) at 30 FPS
Depth sensor (TOF 3D)NoNo

Connectivity

Wi-Fi standardWi-Fi 6 (802.11 a/b/g/n/ac/ax)Wi-Fi 5 (802.11 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 version5.35
Bluetooth featuresLEPBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB typeUSB Type-CUSB Type-C
USB version22
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
GPSGPS, GLONASS, Beidou, Galileo, QZSSGPS, GLONASS, Beidou, Galileo
NFC*Depends on the regionYes
Infrared portNoNo
Network
Number of SIM*22
Type of SIM cardNanoNano
Multi SIM modeStandbyStandby
eSIM support*YesNo
Hybrid slotYesNo
LTE Cat*1812
5G supportYesNo

Sound

SpeakersStereoMono
Headphone audio jackNoYes
FM radioNoYes
Dolby AtmosYesYes
Speakers test
Max loudness
Galaxy A55 5G+12%
91.4 dB
Galaxy A51
81.7 dB

Other

CategoryMid-rangeMid-range
AnnouncedMarch 2024December 2019
Release dateMarch 2024December 2019
Launch price$439$399
SAR (head)0.68 W/kg0.596 W/kg
SAR (body)1.04 W/kg1.45 W/kg
Sensors - Hall-effect sensor
- Barometer
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled chargerNot included -
Further details
Notes on Galaxy A55 5G:
    - The barometer is only available in the model for the USA.
    - SM-A556B/DS and A556E/DS models come with two physical SIM cards.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
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