Samsung Galaxy A51 8GB RAM vs Samsung Galaxy M31 8GB RAM

Comparing the Samsung Galaxy A51 8GB RAM vs Samsung Galaxy M31 8GB RAM across performance, display, camera, battery, storage, expert reviews and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Samsung Galaxy M31 8GB RAM scores higher on the Geekbench Multi-Core test with 1,284, while Samsung Galaxy A51 8GB RAM scores 1,196, making Samsung Galaxy M31 8GB RAM the better performer.

Display: Samsung Galaxy A51 8GB RAM offers a screen size of 6.5 inches, while Samsung Galaxy M31 8GB RAM offers 6.4 inches, making Samsung Galaxy A51 8GB RAM the larger display of the two. Both Samsung Galaxy A51 8GB RAM and Samsung Galaxy M31 8GB RAM feature the same Super AMOLED display.

Rear Camera: Samsung Galaxy M31 8GB RAM offers a higher rear camera resolution with 64 MP, while Samsung Galaxy A51 8GB RAM offers 48 MP, making Samsung Galaxy M31 8GB RAM better for rear camera photography.

Front Camera: Both Samsung Galaxy A51 8GB RAM and Samsung Galaxy M31 8GB RAM feature a 32 MP primary front camera.

Battery: Samsung Galaxy M31 8GB RAM delivers longer battery life with 15h 43m, while Samsung Galaxy A51 8GB RAM delivers 14h 29m, making Samsung Galaxy M31 8GB RAM the better pick for all day usage.

Storage: Both Samsung Galaxy A51 8GB RAM and Samsung Galaxy M31 8GB RAM offer the same internal storage of 128 GB.

Expert Review: Samsung Galaxy A51 8GB RAM receives a higher expert rating of 8 from the editorial team, while Samsung Galaxy M31 8GB RAM is rated 7.

User Rating: Samsung Galaxy A51 8GB RAM receives a higher user rating of 4.3, while Samsung Galaxy M31 8GB RAM has a rating of 4.2.

Samsung Galaxy A51 8GB RAM

₹22,500

(Out of Stock)

Samsung Galaxy M31 8GB RAM

₹18,999

(Out of Stock)

Summary

Release Date

05 Jun, 2020

29 May, 2020

12 Mar, 2026

Performance


Samsung Exynos 9 Octa 9611	Samsung Exynos 9 Octa 9611	Snapdragon 7s Gen 4
Octa Core (upto 2.3 GHz)	Octa Core (upto 2.3 GHz)	Octa Core (upto 2.7 GHz)
8 GB RAM	8 GB RAM	8 GB RAM

Display


6.5 inches (16.51 cm)	6.4 inches (16.26 cm)	6.8 inches (17.27 cm)
Super AMOLED	Super AMOLED	Extreme AMOLED
1080x2400 px (FHD+)	1080x2340 px (FHD+)	Super HD (2772 x 1272)
60 Hz Refresh Rate	N/A	144 Hz Refresh Rate

Rear Camera


48 MP Primary Camera	64 MP Primary Camera	50 MP Wide Angle Primary Camera
12 MP Ultra-Wide Angle Camera	8 MP Ultra-Wide Angle Camera	13 MP Ultra-Wide Angle Camera
5 MP Macro Camera	5 MP Macro Camera	N/A
5 MP Depth Camera	5 MP Depth Camera	N/A

Front Camera


32 MP	32 MP	32 MP

Battery


4000 mAh	6000 mAh	7000 mAh
15W Fast Charging	15W Fast Charging	68W Turbo Power Charging
N/A	No Wireless Charging	N/A

Storage

128 GB	128 GB	128 GB
UFS 2.0	UFS 2.1	UFS 3.1

Expert Review

8.0/10

Read Expert Review

7.0/10

Read Expert Review

8.4/10

Read Expert Review

Pros

Excellent display
Great daylight performance
OneUI 2.0 has made the software experience more re

Terrific battery life
Attractive AMOLED display
Smooth software experience

Long-lasting battery life
Slim and lightweight design
Reliable cameras
Dependable performance

Cons

Performance could’ve been better
Macro lens is not good
Battery life is average at best

Poor low light camera performance
Processor could be better
Uninspiring design

Warms up quickly during gaming
Macro photography could be improved

User Ratings

4.3/5

(7,197 ratings)

4.2/5

(313,358 ratings)

4.4/5

(18,954 ratings)

Benchmarks (The higher, the better)

171,285 AnTuTu Score	194,497 AnTuTu Score	1,149,292 AnTuTu Score
14h 29m Battery Life (PC Mark)	15h 43m Battery Life (PC Mark)	17h 34m Battery Life (PC Mark)

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Not Available in any store

₹30,999

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Video

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11 More Videos

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User Feedback

General

Launch Date

Jun 05, 2020

(Official)

May 29, 2020

(Official)

Mar 06, 2026

(Official)

Operating System

Android v10 (Q)

Android v16

OS Updates

N/A

3 Years

Security Updates

N/A

5 Year

Custom UI

Samsung One UI

Hello UI

Performance

Performance Rating

Good

Very Good

Chipset

Samsung Exynos 9 Octa 9611

Qualcomm Snapdragon 7s Gen 4

View Details

Processor

Octa core

2.3 GHz, Quad core, Cortex A73 1.7 GHz, Quad core, Cortex A53

Octa core

2.7 GHz, Single core, Cortex A720 2.4 GHz, Tri core, Cortex A720 1.8 GHz, Quad core, Cortex A520

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

10 nm

4 nm

Graphics (GPU)

Mali-G72 MP3

Adreno 810

RAM

6 GB / 8 GB

8 GB / 12 GB

RAM Type

LPDDR4X

LPDDR5X

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

171,285

194,497

1,149,292

Bootup Time (The lower, the better)

29.0 s

26.0 s

18.0 s

Gaming Test Results

Wild Life Extreme (The higher, the better) Wild Life Extreme is a classic mobile benchmark; it renders in 4K to test the peak performance of a wide range of devices.

N/A

1,197

Battery Drain* (The lower, the better)

8.0 %

6.0 %

5.0 %

Heating* (The lower, the better)

32.7 %

48.3 %

19.0 %

* after 30 mins of gaming

Display

Display Rating

Excellent

Best In Class

Excellent

Display Type

Super AMOLED

Extreme AMOLED

Screen Size

6.5 inches (16.51 cm)

6.4 inches (16.26 cm)

6.8 inches (17.27 cm)

Resolution

1080x2400 px (FHD+)

1080x2340 px (FHD+)

1272x2772 px (FHD+)

Peak Brightness

N/A

5200 nits

HBM Brightness

N/A

1600 nits

Refresh Rate

60 Hz

N/A

144 Hz

Touch Sampling Rate

N/A

1500 Hz

Aspect Ratio

20:9

19.5:9

20:9

Pixel Density

405 ppi

403 ppi

449 ppi

Screen to Body Ratio (calculated)

87.44 %

83.92 %

92.05 %

Screen Protection

Corning Gorilla

Corning Gorilla Glass 7i

Bezel-less Display

Yes with punch-hole display

Yes with notch

Yes with punch-hole display

HDR 10 / HDR+ Support

N/A

Yes HDR 10+

Screen to Body Ratio (claimed by the brand)

N/A

96.2 %

Design

Height

158.5 mm

159.2 mm

162.76 mm

Width

73.6 mm

75.1 mm

75.60 mm

Thickness

7.9 mm

8.9 mm

7.99 mm

Weight

172 grams

191 grams

193 grams

Build Material

Back: Plastic

Back: Fiber Fabric

Water Resistance

N/A

Yes Water resistant IP68 IP69

Ruggedness

N/A

Dust proof

Rear Camera

Rear Camera Rating

Very Good

Resolution

48 MP
Primary Camera8x Digital Zoomf/2.026 mm focal length 1/2.25" sensor size S5KGM2 ISO-CELL 0.8µm pixel size

64 MP
Primary Camera8x Digital Zoomf/1.826 mm focal length 1/1.7" sensor size S5KGW1 ISOCELL Plus 0.8µm pixel size

50 MP
Primary Cameraf/1.8 Wide Angle1/1.56" sensor size LYT 710 1µm pixel size

12 MP
f/2.2 Ultra-Wide Angle Camera

8 MP
f/2.2 Ultra-Wide Angle Camera12 mm focal length 1/4.0" sensor size 1.12µm pixel size

13 MP
f/2.2 Ultra-Wide Angle Camera1.12µm pixel size

5 MP
f/2.4 Macro Camera

5 MP
f/2.4 Macro Camera25 mm focal length 1/5.0" sensor size 1.12µm pixel size

N/A

5 MP
f/2.2 Depth Camera

N/A

Autofocus

Yes

Yes Phase Detection Autofocus

Yes Multi-directional Phase Detection Autofocus

OIS

Yes

Flash

Yes LED Flash

Image Resolution

8000 x 6000 Pixels

9000 x 7000 Pixels

N/A

Settings

Exposure compensation ISO control

N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

High Dynamic Range mode (HDR)
Macro Mode

Camera Features

8 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Face detection

Video Recording

4k @30 fps

4k @30 fps
Full HD @30 fps
HD @240 fps

4k @30 fps
Full HD @30/60 fps

Video Recording Features

N/A

Dual Video Recording
Slow Motion
Audio Zoom

Front Camera

Front Camera Rating

Very Good

Resolution

32 MP
f/2.2 Primary Camera1/2.8" sensor size 0.8µm pixel size

32 MP
f/2.0 Primary Camera26 mm focal length 1/2.8" sensor size Exmor RS 0.8µm pixel size

32 MP
f/2.2 Primary Camera0.7µm pixel size

Autofocus

N/A

Flash

Yes Screen flash

Video Recording

Full HD @30 fps

N/A

Battery

Battery Rating

Very Good

Capacity

4000 mAh

6000 mAh

7000 mAh

Battery Type

Li-ion

Silicon Carbon

TalkTime

Up to 32 Hours(4G)

Up to 48 Hours(4G)

N/A

Quick Charging

Yes 15W Fast Charging

Yes 68W Turbo Power Charging

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

14h 29m

15h 43m

17h 34m

Charging Time (20% to 100%) (The lower, the better)

1h 35m 31s

2h 1m 8s

49m

Storage

Internal Storage

128 GB

64 GB / 128 GB

128 GB / 256 GB / 512 GB

Storage Type

UFS 2.0

UFS 2.1

UFS 3.1

Expandable Storage

Yes Up to 512 GB

N/A

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano

Network Support

5G Not Supported 4G

5G 4G

VoLTE

Yes

SIM 1

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26)

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26)

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N20 / N26 / N28 / N66 / N75
TDD N38 / N40 / N41 / N66 / N75 / N77 / N78

N/A

4G Bands:

TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) / 3500(band 42) / 3700(band 43)
FD-LTE 1700(band 66) / 2100(band 1) / 1500(band 32) / 1800(band 3) / 2600(band 7) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 7009(band 12) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SIM 2

4G Bands:

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N20 / N26 / N28 / N66 / N75
TDD N38 / N40 / N41 / N66 / N75 / N77 / N78

N/A

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) / 3500(band 42) / 3700(band 43) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 1500(band 32) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SAR Value

Head: 0.598 W/kg

Head: 0.383 W/kg

N/A

Wi-Fi

Yes Wi-Fi 5 (802.11 b/g/n/ac) 5GHz

Yes Wi-Fi 6 (802.11 a/b/g/n/ac/ax)

Wi-Fi Features

Wi-Fi Direct Mobile Hotspot

Bluetooth

Yes v5.0

Yes v6.0

GPS

Yes with A-GPS Glonass

NFC

Yes

Multimedia

Stereo Speakers

N/A

Yes

Audio Jack

3.5 mm

USB Type-C

Audio Features

Dolby Atmos

Sensors

Fingerprint Sensor

Yes

Fingerprint Sensor Position

On-screen

Rear

On-screen

Fingerprint Sensor Type

Optical

N/A

Optical

Other Sensors

Light sensor Proximity sensor Accelerometer Gyroscope

Compare Prices

Not Available in any store

₹30,999

@ Flipkart