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ALTERNATIVES
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Scored using Smartphones Methodology v1.0
Smartphones Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Smartphones Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Samsung Galaxy A51 (4GB + 128GB) Review | 197 Data compared

Avg. price:~£180RAM capacity:4 GBInternal storage:128 GBScreen size:6.5 inchesMain camera megapixels:48 MP & 12 MP & 5 MP & 5 MP

Samsung Galaxy A51 (4GB + 128GB) Review: Compare 197 technical specifications and user reviews to see how this product ranks in the Smartphones category and whether it is worth buying.

Samsung Galaxy A51 (4GB + 128GB)
5.6/10

Overall score

Score
5.6/ 10
✕
What it is
An overall evaluation of the smartphone's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best smartphones on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 92% of models
Score components

90%

5.2

Technical score

10%

9.2

User score

â–¼Worse than 92% of smartphones
6.8

Value for money

Value for money
6.8/ 10
✕
What it is
An indicator that combines the smartphone's overall rating with its cost.
When it matters
When you are looking for a smartphone with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components

70%

5.6

Overall score

30%

9.6

Price

â–¼Worse than 88%
5.2

Technical score

Technical score
5.2/ 10
✕
What it is
An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.
When it matters
When you want to compare smartphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 96% of models
Score components

25%

4.4

Performance & Hardware

18%

6.0

Camera

15%

5.9

Display

15%

4.5

Battery

10%

4.2

Software

10%

6.8

Connectivity

4%

3.6

Audio

3%

6.7

Design

â–¼Worse than 96%
9.2

User score

User score
9.2/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the smartphone
When it matters
When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 96% of models
Score components

70%

8.8

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
★Better than 96%
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Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Smartphones model ranking

Ranked #1059 of 2,002 models in Smartphones (Overall score)

Technical Specifications of smartphone Samsung Galaxy A51 (4GB + 128GB)

Technical score
Technical score
5.2/ 10
✕
What it is
An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.
When it matters
When you want to compare smartphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 96% of models
Score components:

25%

4.4

Performance & Hardware

18%

6.0

Camera

15%

5.9

Display

15%

4.5

Battery

10%

4.2

Software

10%

6.8

Connectivity

4%

3.6

Audio

3%

6.7

Design

5.2
User score
User score
9.2/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the smartphone
When it matters
When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 96% of models
Score components

70%

8.8

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
9.2
Popularity
Popularity
10/ 10
✕
What it is
An indicator based on the number of reviews received by the smartphone.
When it matters
When you prefer to purchase a product chosen and reviewed by many other consumers.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 94% of models
Popularity:
Samsung Galaxy A51 (4GB + 128GB) has a popularity of 10 points, which is higher than 94.1% of smartphones.
10
Value for money
Value for money
6.8/ 10
✕
What it is
An indicator that combines the smartphone's overall rating with its cost.
When it matters
When you are looking for a smartphone with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components:

70%

5.6

Overall score

30%

9.6

Price

6.8
Brand name
Samsung
Processor model
Samsung Exynos 9611
This smartphone uses the Samsung Exynos 9611 processor model which is slower than processors in 83.1% of smartphones and equal to processors in 0.1% of smartphones.
RAM capacity
4 GB
Market range: <4 GB – >16 GB
This smartphone has a RAM capacity of 4 GB which is smaller than the RAM capacity of 82.7% of smartphones and equal to that of 14% of smartphones.
Internal storage
128 GB
Market range: <64 GB – >512 GB
This smartphone has an internal storage capacity of 128 GB which is smaller than the storage of 61.2% of smartphones and equal to that of 28.4% of smartphones.
CPU boost clock speed
2.3 GHz
Market range: <2 GHz – >3.3 GHz
The CPU boost clock speed of this smartphone is 2.3 GHz which is lower than the boost speed of 63.7% of smartphones and equal to that of 4.4% of smartphones.
Show more
Operating system
Android
This smartphone uses the Android operating system, which outperforms that of 1%.
Android 13
Android version
Android 13
This smartphone runs Android version Android 13 which is older than that found in 50.6% of smartphones and equal to that in 16.5% of smartphones.
Direct OS updates
no
This smartphone does not receive direct OS updates. 20.6% of smartphones receive direct updates.
Open-source OS
yes
This smartphone uses an open-source OS. 94.6% of smartphones use an open-source OS.
Dark mode
yes
This smartphone offers dark mode. 95.8% of smartphones support this feature.
Show more
Multi-lens main camera
yes
This smartphone includes a multi-lens main camera system. 93.7% of smartphones include multi-lens setups.
Main camera megapixels
48 MP & 12 MP & 5 MP & 5 MP
Market range: <10 – >100
This smartphone has a main camera resolution of 48 MP & 12 MP & 5 MP & 5 MP which is lower than that of 78% of smartphones.
Main camera aperture
f/2.0 & f/2.2 & f/2.2 & f/2.4
This smartphone has a main camera aperture of f/2.0 & f/2.2 & f/2.2 & f/2.4 which is narrower than that of 91.7% of smartphones.
Main camera sensor area
30.7 mm²
Market range: <19.7 mm² – >71.4 mm²
This smartphone has a main camera sensor area of 30.7 mm² which is smaller than the main camera sensor area of 63.5% of smartphones and equal to that of 6.3% of smartphones.
Main camera pixel size
0.8 µm
Market range: <0.64 µm – >1.22 µm
This smartphone has a main camera pixel size of 0.8 µm which is larger than in 35.5% of smartphones and equal to the size in 21.9% of smartphones.
1.6 binned
Show more
Number of SIM slots
2
Market range: <1 – >6
This smartphone has 2 SIM slots, which is more than in 3.8% of smartphones and equal to the number in 96.1% of smartphones.
Cellular module
yes
This smartphone includes a cellular module. 100% of smartphones include cellular modules.
5G connectivity
no
This smartphone does not support 5G connectivity. 66.9% of smartphones support 5G.
LTE support
yes
This smartphone supports LTE. 99.7% of smartphones include LTE connectivity.
Wi-Fi connectivity
yes
This smartphone supports Wi-Fi connectivity. 100% of smartphones offer Wi-Fi support.
Show more
Screen size
6.5 inches
Market range: <6.3 inches – >6.82 inches
This smartphone has a screen size of 6.5 inches which is smaller than the screens of 80% of smartphones and equal to those of 3.9% of smartphones.
Screen resolution
1080x 2400 px
This smartphone has a screen resolution of 1080x2400 px which is higher than that of 36.3% of smartphones and equal to that of 20.4% of smartphones.
Pixel density
405 ppi
Market range: <264 ppi – >460 ppi
This smartphone has a pixel density of 405 ppi which is higher than that of 64.8% of smartphones and equal to that of 1.3% of smartphones.
Display type
OLED/AMOLED
This smartphone uses a OLED/AMOLED display type. 58.6% of smartphones use this display technology.
Refresh rate
60 Hz
Market range: <60 Hz – >144 Hz
This smartphone supports a refresh rate of 60 Hz which is lower than in 84.3% of smartphones and equal to that in 15.7% of smartphones.
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Battery capacity
4,000 mAh
Market range: <4k mAh – >7k mAh
This smartphone has a battery capacity of 4,000 mAh which is smaller than the batteries in 90.2% of smartphones and equal to those in 2.6% of smartphones.
Charging speed
25 W
Market range: <15 W – >90 W
This smartphone supports charging speeds of 25 W which is slower than in 66.9% of smartphones and equal to speeds in 5.3% of smartphones.
Fast charging
yes
This smartphone supports fast charging. 93.1% of smartphones support fast charging.
GSMArena full wired charge time
134 min
Market range: <36 min – >120 min
This smartphone reaches a full wired charge in 134 min which is slower than 92.6% of smartphones and equal to the time of 0.6% of smartphones.
Wireless charging
no
This smartphone does not support wireless charging. 25.2% of smartphones support wireless charging.
Show more
Stereo speakers
no
This smartphone does not include stereo speakers. 64.4% of smartphones provide stereo audio.
3.5 mm headphone jack
yes
This smartphone includes a 3.5 mm headphone jack. 45.5% of smartphones offer this port.
Number of microphones
2
Market range: <1 – >3
This smartphone includes 2 microphones, which is more than in 10.5% of smartphones and equal to the number in 66.6% of smartphones.
FM radio
yes
This smartphone includes an FM radio. 34.2% of smartphones offer FM radio functionality.
aptX Lossless
no
This smartphone does not support aptX Lossless. 12.9% of smartphones provide aptX Lossless.
Show more
Height
158.5 mm
Market range: <156.2 mm – >171.56 mm
This smartphone has a height of 158.5 mm which is shorter than 84.3% of smartphones and equal to that of 0.4% of smartphones.
Width
73.6 mm
Market range: <73.1 mm – >81 mm
This smartphone has a width of 73.6 mm which is narrower than 86.9% of smartphones and equal to that of 0.4% of smartphones.
Thickness
7.9 mm
Market range: <7.53 mm – >10.5 mm
This smartphone has a thickness of 7.9 mm which is thinner than 72.2% of smartphones and equal to that of 5% of smartphones.
Weight
172 g
Market range: <175 g – >256 g
This smartphone weighs 172 g which is lighter than 92.1% of smartphones and equal to the weight of 0.7% of smartphones.
Device volume
80,738 cm³
Market range: <80 cm³ – >190 cm³
This smartphone has a device volume of 80,738 cm³ which is smaller than 93.1% of smartphones and equal to that of 0.2% of smartphones.
Show more

Samsung Galaxy A51 (4GB + 128GB) vs the average smartphone

246810TotalPerformance & HardwareSoftwareCameraConnectivityDisplayBatteryAudioDesign
  • Uses a BSI sensor
    This smartphone uses a BSI sensor, the average smartphone does not. 40.5% of smartphones include BSI sensors.
  • 2 more memory channels
    This smartphone has more memory channels than the average smartphone (4 vs 2). The average smartphone has 2 memory channels.
    4 vs 2
  • Has an always-on display
    This smartphone features an always-on display, the average smartphone does not. 49.2% of smartphones offer always-on functionality.
  • Supports 360° panorama
    This smartphone can capture 360° panoramas, the average smartphone cannot. 25.2% of smartphones support 360° panoramas.
  • 33.3% lower TDP
    This smartphone has a lower TDP than the average smartphone (8 W vs 6 W). The average TDP for smartphones is 6 W.
    8 W vs 6 W
  • Allows manual shutter speed
    This smartphone allows manual shutter speed control, the average smartphone does not. 29.8% of smartphones include this.
  • Supports ANT+
    This smartphone supports ANT+ technology, the average smartphone does not. 6% of smartphones are ANT+ compatible.
  • 12.3% lighter
    This smartphone is lighter than the average smartphone (172 g vs 196.2 g). The average smartphone weighs 196.2 g.
    172 g vs 196.2 g
  • 14.5% higher user score
    User score
    9.2/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the smartphone
    When it matters
    When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Samsung Galaxy A51
    the average smartphone
    Samsung Galaxy A51 (4GB + 128GB) has a higher user score than the average smartphone (9.16 vs 8.000).
    9.16 vs 8
  • 83.9% more popular
    Samsung Galaxy A51 (4GB + 128GB) is more popular than the average smartphone (10 vs 5.4).
    10 vs 5.44
  • 44.4% cheaper
    Samsung Galaxy A51 (4GB + 128GB) is cheaper than the average smartphone (£180 vs £260).
    £180 vs £260
  • 2 more memory channels
    This smartphone has more memory channels than the average smartphone (4 vs 2). The average smartphone has 2 memory channels.
    4 vs 2
  • 33.3% lower TDP
    This smartphone has a lower TDP than the average smartphone (8 W vs 6 W). The average TDP for smartphones is 6 W.
    8 W vs 6 W
  • Higher CPU base clock speed
    This smartphone has a higher CPU base clock speed than the average smartphone (4x2.3 GHz & 4x1.7 GHz vs 2x2.2 GHz & 6x2 GHz). The average smartphone has a base clock speed of 2x2.2 GHz & 6x2 GHz.
    4x2.3 GHz & 4x1.7 GHz vs 2x2.2 GHz & 6x2 GHz
  • Uses a BSI sensor
    This smartphone uses a BSI sensor, the average smartphone does not. 40.5% of smartphones include BSI sensors.
  • Supports 360° panorama
    This smartphone can capture 360° panoramas, the average smartphone cannot. 25.2% of smartphones support 360° panoramas.
  • Allows manual shutter speed
    This smartphone allows manual shutter speed control, the average smartphone does not. 29.8% of smartphones include this.
  • Higher front camera megapixels
    This smartphone has more front camera megapixels than the average smartphone (32 MP vs 16 MP). The average front camera has 16 MP megapixels.
    32 MP vs 16 MP
  • Supports ANT+
    This smartphone supports ANT+ technology, the average smartphone does not. 6% of smartphones are ANT+ compatible.
  • Has an always-on display
    This smartphone features an always-on display, the average smartphone does not. 49.2% of smartphones offer always-on functionality.
  • 2.5% higher pixel density
    This smartphone has a higher pixel density than the average smartphone (405 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
    405 ppi vs 395 ppi
  • Has a 3.5 mm headphone jack
    This smartphone features a 3.5 mm headphone jack, the average smartphone does not. 45.5% of smartphones include a standard headphone jack.
  • Has FM radio
    This smartphone features an FM radio, the average smartphone does not. 34.2% of smartphones include an FM tuner.
  • Supports aptX
    This smartphone supports aptX, the average smartphone does not. 50% of smartphones are aptX compatible.
  • 12.3% lighter
    This smartphone is lighter than the average smartphone (172 g vs 196.2 g). The average smartphone weighs 196.2 g.
    172 g vs 196.2 g
  • 2.4 mm narrower
    This smartphone is narrower than the average smartphone (73.6 mm vs 76 mm). The average smartphone width is 76 mm.
    73.6 mm vs 76 mm
  • 5.1 mm shorter
    This smartphone is shorter than the average smartphone (158.5 mm vs 163.6 mm). The average smartphone height is 163.6 mm.
    158.5 mm vs 163.6 mm
  • 0.4 mm thinner
    This smartphone is thinner than the average smartphone (7.9 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.
    7.9 mm vs 8.3 mm
  • 17.4% smaller volume
    This smartphone has a smaller device volume than the average smartphone (80738 cm³ vs 97800 cm³). The average smartphone volume is 97800 cm³.
    80,738 cm³ vs 97,800 cm³
  • Worse processor
    This smartphone uses a worse processor than the average smartphone (Samsung Exynos 9611 vs Qualcomm Snapdragon 7 Gen 3).
    Samsung Exynos 9,611 vs Qualcomm Snapdragon 7 Gen 3
  • Narrower main camera aperture
    This smartphone has a narrower main camera aperture than the average smartphone (f/2 & f/2.2 & f/2.2 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
    f/2.0 & f/2.2 & f/2.2 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
  • 50% lower refresh rate
    This smartphone has a lower refresh rate than the average smartphone (60 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.
    60 Hz vs 120 Hz
  • No 5G connectivity
    This smartphone does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
  • 31.6% slower GPU clock
    This smartphone has a lower GPU frequency than the average smartphone (650 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    650 MHz vs 950 MHz
  • 50% less storage
    This smartphone offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.
    128 GB vs 256 GB
  • 4 GB less RAM
    This smartphone has less RAM than the average smartphone (4 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    4 GB vs 8 GB
  • 20% smaller battery capacity
    This smartphone has a smaller battery capacity than the average smartphone (4000 mAh vs 5000 mAh). The average smartphone has a capacity of 5000 mAh.
    4,000 mAh vs 5,000 mAh
  • 8.3% worse value for money
    Samsung Galaxy A51 (4GB + 128GB) has worse value for money than the average smartphone (6.78 vs 7.3).
    6.78 vs 7.34
  • Worse processor
    This smartphone uses a worse processor than the average smartphone (Samsung Exynos 9611 vs Qualcomm Snapdragon 7 Gen 3).
    Samsung Exynos 9,611 vs Qualcomm Snapdragon 7 Gen 3
  • 31.6% slower GPU clock
    This smartphone has a lower GPU frequency than the average smartphone (650 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    650 MHz vs 950 MHz
  • 4 GB less RAM
    This smartphone has less RAM than the average smartphone (4 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    4 GB vs 8 GB
  • 50% less storage
    This smartphone offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.
    128 GB vs 256 GB
  • 60.6% lower Geekbench 6 single-core benchmark score
    This smartphone performs worse in Geekbench 6 single-core than the average smartphone (371 vs 942). The average smartphone scores 942 in the Geekbench 6 single-core test.
    371 vs 942
  • 66.7% larger process node
    This smartphone is manufactured on a larger process node than the average smartphone (10 nm vs 6 nm). The average smartphone uses a 6 nm process.
    10 nm vs 6 nm
  • 70.9% fewer transistors
    This smartphone contains fewer transistors than the average smartphone (3000 million vs 10300 million). The average smartphone has 10300 million transistors.
    3,000 million vs 10,300 million
  • 42.9% lower maximum RAM capacity
    This smartphone supports less maximum RAM than the average smartphone (8 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
    8 GB vs 14 GB
  • 73.9% lower 3DMark Wild Life benchmark
    This smartphone performs worse in the 3DMark Wild Life benchmark than the average smartphone (812 vs 3,115). The average smartphone scores 3,115 in this benchmark.
    812 vs 3,115
  • 55.2% lower Geekbench 6 multi-core benchmark score
    This smartphone performs worse in Geekbench 6 multi-core than the average smartphone (1,135 vs 2,533). The average smartphone scores 2,533 in the Geekbench 6 multi-core test.
    average for Exynos 9,611
    1,135 vs 2,533
  • 54.1% lower PassMark benchmark
    This smartphone has a lower PassMark score than the average smartphone (2014 vs 4,389). The average smartphone scores 4,389 in PassMark.
    2,014 vs 4,389
  • 78.7% lower 3DMark Wild Life Unlimited benchmark
    This smartphone scores lower in 3DMark Wild Life Unlimited than the average smartphone (813 vs 3,825). The average smartphone scores 3,825.
    813 vs 3,825
  • 53.4% lower memory bandwidth
    This smartphone has lower memory bandwidth than the average smartphone (11.9 GB/s vs 25.6 GB/s). The average smartphone has a bandwidth of 25.6 GB/s.
    11.92 GB/s vs 25.6 GB/s
  • 22.4% slower memory speed
    This smartphone has a lower memory speed than the average smartphone (2133 MHz vs 2750 MHz). The average smartphone has a memory speed of 2750 MHz.
    2,133 MHz vs 2,750 MHz
  • 85.9% fewer shader units
    This smartphone includes fewer shader units than the average smartphone (36 vs 256). The average smartphone has 256 shader units.
    36 vs 256
  • 4.2% lower CPU boost clock speed
    This smartphone has a lower CPU boost clock speed than the average smartphone (2.3 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    2.3 GHz vs 2.4 GHz
  • No live text recognition
    This smartphone does not support live text recognition, the average smartphone does. 50.9% of smartphones offer real-time text recognition.
  • No location privacy controls
    This smartphone does not offer location privacy controls, the average smartphone does. 88% of smartphones include location privacy features.
  • Lacks app tracking protection
    This smartphone does not have app tracking protection, the average smartphone does. 70.2% of smartphones include app tracking protection.
  • Lacks focus mode
    This smartphone does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
  • No camera/mic privacy toggles
    This smartphone lacks camera and microphone privacy toggles, the average smartphone includes them. 87% of smartphones offer these toggles.
  • No Wi-Fi password sharing
    This smartphone does not support Wi-Fi password sharing, the average smartphone does. 57.9% of smartphones allow easy Wi-Fi sharing.
  • No battery health monitoring
    This smartphone lacks battery health monitoring, the average smartphone includes it. 66.3% of smartphones provide battery health stats.
  • Does not allow app offloading
    This smartphone does not support app offloading, the average smartphone does. 51.9% of smartphones support app offloading to save space.
  • Lacks instant markup
    This smartphone does not support instant markup, the average smartphone does. 52.2% of smartphones include instant markup tools.
  • No scrolling screenshot support
    This smartphone does not support scrolling screenshots, the average smartphone does. 81.1% of smartphones allow scrolling screenshots.
  • No theme customization
    This smartphone does not support theme customization, the average smartphone does. 91% of smartphones allow theme customization.
  • No offline voice commands
    This smartphone does not support offline voice commands, the average smartphone does. 90.4% of smartphones offer offline voice control.
  • Does not allow play while downloading
    This smartphone cannot play games while downloading, the average smartphone can. 77.3% of smartphones support play-while-downloading.
  • No dynamic theme support
    This smartphone does not support dynamic themes, the average smartphone does. 81.9% of smartphones support dynamic theming.
  • Lacks extra dim mode
    This smartphone does not have extra dim mode, the average smartphone does. 82.5% of smartphones offer extra dimming features.
  • Older Android version
    This smartphone runs an older Android version than the average smartphone (Android 13 vs Android 14). The average smartphone runs Android version Android 14.
    Android 13 vs Android 14
  • Narrower main camera aperture
    This smartphone has a narrower main camera aperture than the average smartphone (f/2 & f/2.2 & f/2.2 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
    f/2.0 & f/2.2 & f/2.2 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
  • Lower-resolution main camera
    This smartphone has a lower-resolution main camera than the average smartphone (48 MP & 12 MP & 5 MP & 5 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
    48 MP & 12 MP & 5 MP & 5 MP vs 50 MP & 8 MP
  • 4.1% smaller main camera sensor area
    This smartphone has a smaller main camera sensor area than the average smartphone (30.7 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
    30.7 mm² vs 32 mm²
  • No continuous autofocus in video
    This smartphone does not support continuous autofocus in video, the average smartphone does. 94.2% of smartphones have continuous AF.
  • No 5G connectivity
    This smartphone does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
  • Older Bluetooth version
    This smartphone uses an older Bluetooth version than the average smartphone (5 vs 5.2). The average smartphone uses Bluetooth 5.2.
    5.0 vs 5.2
  • 50% lower refresh rate
    This smartphone has a lower refresh rate than the average smartphone (60 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.
    60 Hz vs 120 Hz
  • 0.17 inches inch smaller screen size
    This smartphone has a smaller screen size than the average smartphone (6.5 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.
    6.5 inches vs 6.67 inches
  • 14.4% lower screen brightness
    This smartphone has a lower screen brightness than the average smartphone (565 nits vs 660 nits). The average smartphone has a brightness of 660 nits.
    565 nits vs 660 nits
  • Worse display glass type
    This smartphone uses a worse display glass type than the average smartphone (Corning Gorilla Glass 3 vs Corning Gorilla Glass 5). 0.00% of smartphones use the better glass type.
    Corning Gorilla Glass 3 vs Corning Gorilla Glass 5
  • 20% smaller battery capacity
    This smartphone has a smaller battery capacity than the average smartphone (4000 mAh vs 5000 mAh). The average smartphone has a capacity of 5000 mAh.
    4,000 mAh vs 5,000 mAh
  • 72 min slower full wired charge time
    This smartphone has a slower full wired charge time than the average smartphone (134 min vs 62 min). The average smartphone takes 62 min to charge.
    134 min vs 62 min
  • Lower GSMArena battery endurance score
    This smartphone has a lower GSMArena battery endurance score than the average smartphone (86 vs 99.5). The average smartphone scores 99.5.
    86 vs 99.5
  • 24.2% slower charging speed
    This smartphone has a slower charging speed than the average smartphone (25 W vs 33 W). The average smartphone charges at 33 W.
    25 W vs 33 W
  • No stereo speakers
    This smartphone does not have stereo speakers, the average smartphone does. 64.4% of smartphones feature stereo speakers.
  • No LDAC support
    This smartphone does not support LDAC, the average smartphone does. 60.3% of smartphones support LDAC.
  • 5 year/s older release date
    This smartphone is an older model than the average smartphone (2019 vs 2024). 5.00% of smartphones were released more recently.
    December 2019
    2019 vs 2024
  • Poor brand origin
    This smartphone has a poorer brand origin compared to the average smartphone. 0.00% of smartphones come from top-tier brand origins.
    South Korea vs China

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

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tomsguide.com
07/05/2020
Summary of the review
Samsung Galaxy A51 review - Tom's Guide
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nextpit.com
08/07/2021
Summary of the review
Samsung Galaxy A51 review: Is it still worth buying in 2021? - NextPit
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androidauthority.com
16/06/2022
Summary of the review
Samsung Galaxy A51 review: Great screen, bad performance - Android Authority
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consumerreports.org
12/05/2020
Summary of the review
Samsung Galaxy A51 Cell Phone Review - Consumer Reports Would you like to see a similar list for its successor, the Galaxy A52, or perhaps a breakdown...
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in.mashable.com
05/02/2020
Summary of the review
Samsung Galaxy A51 review: a stellar refresh with one major letdown
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androidcentral.com
28/04/2021
Summary of the review
Samsung Galaxy A51 review: Old wine in a shiny new bottle - Android Central
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techradar.com
21/09/2022
Summary of the review
Samsung Galaxy A51 review - TechRadar
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wired.com
12/05/2020
Summary of the review
Samsung Galaxy A51 Review: Not Good Enough - WIRED
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cnet.com
06/05/2020
Summary of the review
Galaxy A51 review: Samsung beats the iPhone SE in these important ways - CNET
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pcmag.com
12/05/2020
Summary of the review
Samsung Galaxy A51 Review - PCMag
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altroconsumo.it
Data non indicata
Summary of the review
Samsung Galaxy A51 smartphone review - Altroconsumo
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global.techradar.com
16/07/2020
Summary of the review
Samsung Galaxy A51 Review - TechRadar Italy
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biancoebruno.it
19/02/2020
Summary of the review
Samsung A51 Review
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tweakers.net
01/02/2020
Summary of the review
Samsung Galaxy A51 - Reviews - Tweakers
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gadgetkeuze.nl
07/01/2020
Summary of the review
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global.techradar.com
31/03/2021
Summary of the review
Samsung Galaxy A51 review | TechRadar. Do you want me to briefly summarise the main pros and cons for you from one of these reviews?
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techzine.nl
20/06/2020
Summary of the review
Samsung Galaxy A51: An affordable smartphone for employees
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smartphoneman.nl
18/06/2020
Summary of the review
Samsung Galaxy A51 review: a beautiful mid-ranger
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galaxyclub.nl
17/01/2020
Summary of the review
Samsung Galaxy A51 review: mid-range king comes of age
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androidplanet.nl
29/01/2020
Summary of the review
Samsung Galaxy A51 review: a compelling successor to the popular mid-ranger
(Translated)Show original

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What we like about Samsung Galaxy A51 (4GB + 128GB)

  • Vibrant and crisp 6.5-inch Super AMOLED display with an Infinity-O design
  • Excellent battery life, often lasting a full day or more under normal usage
  • Versatile quad-camera system that takes high-quality photos in well-lit conditions
  • Includes essential hardware features like a 3.5mm headphone jack and microSD expansion
  • Sleek and lightweight design that is comfortable to hold
  • Samsung One UI offers a feature-rich and highly customizable software experience

What we don't like about Samsung Galaxy A51 (4GB + 128GB)

  • Sluggish performance and interface lag caused by the Exynos 9611 processor
  • In-display optical fingerprint sensor is frequently slow and unreliable
  • Low-light camera performance can be noisy and lacks optical image stabilization (OIS)
  • Plastic build quality feels less premium compared to glass-and-metal rivals
  • Lack of advanced features like wireless charging and an IP rating for water resistance
  • Charging speeds are relatively slow (15W) compared to newer mid-range competitors

Verdict

The Samsung Galaxy A51 (4GB + 128GB) is a popular mid-range smartphone featuring a vibrant 6.5-inch Super AMOLED Infinity-O display, offering crisp visuals for media consumption. Key specifications include an Exynos 9611 processor, a versatile rear quad-camera system headlined by a 48MP main sensor, and a robust 4,000mAh battery supporting 15W fast charging. Its main pros are the excellent screen quality, stylish slim design, and the inclusion of expandable storage and a 3.5mm headphone jack. Common cons involve average gaming performance due to the mid-tier processor and the plastic build feeling less premium compared to glass-backed competitors.

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