Samsung Galaxy M51 vs realme X7

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Comparing the Samsung Galaxy M51 vs realme X7 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: realme X7 scores higher on the Geekbench Multi-Core test with 1,789, while Samsung Galaxy M51 scores 1,684, making realme X7 the better performer.


Display: Samsung Galaxy M51 offers a screen size of 6.7 inches, while realme X7 offers 6.4 inches, making Samsung Galaxy M51 the larger display of the two. realme X7 features a Super AMOLED display compared to Samsung Galaxy M51's Super AMOLED Plus, making realme X7 the better display of the two.


Rear Camera: Both Samsung Galaxy M51 and realme X7 feature a 64 MP primary rear camera.


Front Camera: Samsung Galaxy M51 offers a higher front camera resolution with 32 MP, while realme X7 offers 16 MP, making Samsung Galaxy M51 better for front camera photography.


Battery: Samsung Galaxy M51 delivers longer battery life with 20h 06m, while realme X7 delivers 14h 29m, making Samsung Galaxy M51 the better pick for all day usage.


Storage: Both Samsung Galaxy M51 and realme X7 offer the same internal storage of 128 GB.


Expert Review: Samsung Galaxy M51 receives a higher expert rating of 8 from the editorial team, while realme X7 is rated 7.


User Rating: Samsung Galaxy M51 receives a higher user rating of 4.4, while realme X7 has a rating of 4.3.

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Samsung Galaxy M51
₹22,990
(Out of Stock)
realme X7
₹8,899
(Out of Stock)
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Summary

Release Date

17 Sep, 2020
04 Feb, 2021
14 May, 2026

Performance

Snapdragon 730G
MediaTek Dimensity 800U
Snapdragon 8 Elite Gen 5
Octa Core (upto 2.2 GHz)
Octa Core (upto 2.4 GHz)
Octa Core (upto 4.61 GHz)
6 GB RAM
6 GB RAM
16 GB RAM

Display

6.7 inches (17.02 cm)
6.4 inches (16.26 cm)
6.82 inches (17.32 cm)
Super AMOLED Plus
Super AMOLED
AMOLED
1080x2400 px (FHD+)
1080x2400 px (FHD+)
1440x3168 px (QHD+)
60 Hz Refresh Rate
60 Hz Refresh Rate
144 Hz Refresh Rate

Rear Camera

64 MP
Wide Angle Primary Camera
64 MP
Wide Angle Primary Camera
200 MP
Primary Camera (upto 3.7x Optical Zoom)
12 MP
Ultra-Wide Angle Camera
8 MP
Ultra-Wide Angle Camera
200 MP
Telephoto Camera
5 MP
Macro Camera
2 MP
Macro Camera
50 MP
Ultra-Wide Angle Camera
5 MP
Depth Camera
N/A
N/A

Front Camera

32 MP
Wide Angle Lens
16 MP
Wide Angle Lens
50 MP

Battery

7000 mAh
4310 mAh
6600 mAh
25W Fast Charging
50W Super Dart Charging
100W Flash Charging
No Wireless Charging
N/A
Wireless Charging

Storage

128 GB
128 GB
512 GB
UFS 2.1
UFS 2.1
UFS 4.1

Expert Review

8.0/10
7.0/10
8.7/10

Pros

  • Insane battery life
  • Vibrant, best-in-class display
  • Robust design
  • Nice AMOLED panel
  • Dimensity 800U has good power efficiency
  • Decent daylight camera
  • Stellar and versatile three-lens camera system
  • Excellent performance
  • Bright and crisp 2K AMOLED display

Cons

  • Bulky and prone to scratches
  • Snapdragon 730G is now a bit old
  • Bloatware is still an issue
  • GPU performance is lacking
  • Night mode needs more fine-tuning
  • Screen brightness could have been higher
  • Battery life could have been better
  • Very expensive with camera kit
  • No shortcut key

User Ratings

4.4/5
(36,389 ratings)
4.3/5
(64,964 ratings)
4.6/5
(29 ratings)

Benchmarks (The higher, the better)

224,310
AnTuTu Score
335,217
AnTuTu Score
3,977,648
AnTuTu Score
20h 06m
Battery Life (PC Mark)
14h 29m
Battery Life (PC Mark)
15h 10m
Battery Life (PC Mark)

Compare Prices

Not Available in any store
Not Available in any store
₹159,999

Video

Videos
16 More Videos
Videos
10 More Videos
Videos
1 Video

User Feedback

General

Launch Date

Sep 17, 2020
(Official)
Feb 04, 2021
(Official)
May 06, 2026
(Official)

Operating System

Android v10 (Q)
Android v10 (Q)
Android v16

OS Updates

N/A
3 Year
5 Year

Security Updates

N/A
5 Year
7 Year

Custom UI

Samsung One UI
Realme UI
Origin OS

Performance

Performance Rating

Good
Good
Best In Class

Chipset

Qualcomm Snapdragon 730G
MediaTek Dimensity 800U MT6873V
Qualcomm Snapdragon 8 Elite Gen 5 SM8850-AC

Processor

Octa core

2.2 GHz, Dual core, Kryo 470 1.8 GHz, Hexa Core, Kryo 470
Octa core

2.4 GHz, Dual core, Cortex A76 2 GHz, Hexa Core, Cortex A55
Octa core

4.61 GHz, Dual core, Oryon 3.62 GHz, Hexa Core, Oryon

Architecture (The higher, the better)

64 bit
64 bit
64 bit

Fabrication (The lower, the better)

8 nm
7 nm
3 nm

Graphics (GPU)

Adreno 618
Mali-G57 MC3
Adreno 840

RAM

6 GB / 8 GB
6 GB / 8 GB
16 GB

RAM Type

LPDDR4X
LPDDR4X
LPDDR5X Ultra

Performance Test Results

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

224,310
335,217
3,977,648

Bootup Time (The lower, the better)

23.0 s
20.0 s
14.0 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
N/A
6,450

Battery Drain* (The lower, the better)

5.0 %
8.0 %
7.0 %

Heating* (The lower, the better)

11.1 %
43.5 %
21.7 %
* after 30 mins of gaming

Display

Display Rating

Excellent
Excellent
Best In Class

Display Type

Super AMOLED Plus
Super AMOLED
AMOLED

Screen Size

6.7 inches  (17.02 cm)
6.4 inches  (16.26 cm)
6.82 inches  (17.32 cm)

Resolution

1080x2400 px (FHD+)
1080x2400 px (FHD+)
1440x3168 px (QHD+)

Brightness

420 nits
600 nits
N/A

Peak Brightness

N/A
N/A
4500 nits

Refresh Rate

60 Hz
60 Hz
144 Hz

Aspect Ratio

20:9
20:9
19.8:9

Pixel Density

393 ppi
411 ppi
510 ppi

Screen to Body Ratio (calculated)

86.66 %
82.61 %
89.7 %

Screen Protection

Corning Gorilla Glass v3
Corning Gorilla Glass
Yes

Bezel-less Display

Yes with punch-hole display
Yes with punch-hole display
Yes with punch-hole display

HDR 10 / HDR+ Support

N/A
N/A
Yes

Screen to Body Ratio (claimed by the brand)

91 %
90.8 %
94.49 %

Design

Height

163.9 mm
160.9 mm
162.98 mm

Width

76.3 mm
74.4 mm
76.81 mm

Thickness

9.5 mm
8.1 mm
8.19 mm

Weight

213 grams
176 grams
232 grams

Build Material

Back: Plastic
N/A
Back: Glass

Rear Camera

Rear Camera Rating

Very Good
Very Good
Best In Class

Resolution

64 MP
Primary Camera8x Digital Zoomf/1.8 Wide Angle26 mm focal length 1/1.7" sensor size IMX682 Exmor-RS CMOS Sensor ISOCELL Plus 0.8µm pixel size
64 MP
Primary Camera10x Digital Zoomf/1.8 Wide Angle 80° field-of-view25.1 mm focal length 1/1.97" sensor size S5KGW3 ISOCELL Plus 0.8µm pixel size
200 MP
Primary Camera105x Digital Zoom 3.7x Optical Zoomf/1.8535 mm focal length LYT 901 0.7µm pixel size
12 MP
f/2.2 Ultra-Wide Angle Camera
8 MP
f/2.3 Ultra-Wide Angle Camera15.7 mm focal length 1/4.0" sensor size 1.12µm pixel size
200 MP
f/2.67 Telephoto Camera85 mm focal length 1/1.28" sensor size
5 MP
f/2.4 Macro Camera
2 MP
f/2.4 Macro Camera23.2 mm focal length 1/5.0" sensor size 1.65µm pixel size
50 MP
f/2.0 Ultra-Wide Angle Camera14 mm focal length
5 MP
f/2.4 Depth Camera
N/A
N/A

Autofocus

Yes Phase Detection Autofocus
Yes Phase Detection Autofocus
Yes

OIS

No
N/A
Yes

Flash

Yes LED Flash
Yes LED Flash
Yes Dual LED Flash

Image Resolution

9000 x 7000 Pixels
9000 x 7000 Pixels
N/A

Settings

Exposure compensation ISO control
Exposure compensation ISO control
N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Macro Mode
Continuous Shooting
High Dynamic Range mode (HDR)
N/A

Camera Features

8 x Digital Zoom
Auto Flash
Face detection
Touch to focus
10 x Digital Zoom
Auto Flash
Face detection
Touch to focus
105 x Digital Zoom
3.7 x Optical Zoom

Video Recording

4k @30 fps
Full HD @30 fps
4k @30 fps
Full HD @60 fps
HD @240 fps
8k @30 fps
4k @30/60/120 fps
Full HD @30/60/120 fps

Video Recording Features

Slow Motion
N/A
N/A

Front Camera

Front Camera Rating

Very Good
Very Good
Best In Class

Resolution

32 MP
f/2.2 Wide Angle Primary Camera26 mm focal length 1/2.8" sensor size Exmor RS 0.8µm pixel size
16 MP
f/2.5 Wide Angle Primary Camera1/3" sensor size Exmor RS 1µm pixel size
50 MP
f/2.45 Primary Camera

Autofocus

No
N/A
N/A

Flash

No
N/A
Yes Screen flash

Video Recording

4k @30 fps
Full HD @30 fps
Full HD @30 fps
HD @30 fps
N/A

Battery

Battery Rating

Very Good
Very Good
Excellent

Capacity

7000 mAh
4310 mAh
6600 mAh

Battery Type

Li-ion
Li-ion
Li-ion

Quick Charging

Yes 25W Fast Charging
Yes 50W Super Dart Charging 50% in 18 minutes
Yes 100W Flash Charging

Wireless Charging

N/A
N/A
Yes 40W Wireless 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.

20h 06m
14h 29m
15h 10m

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

1h 56m 33s
0h 50m 35s
0h 36m 0s

Storage

Internal Storage

128 GB
128 GB
512 GB

Storage Type

UFS 2.1
UFS 2.1
UFS 4.1

Expandable Storage

Yes Up to 512 GB
No
N/A

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano
SIM1: Nano SIM2: Nano
SIM1: Nano SIM2: Nano

Network Support

5G Not Supported 4G
5G 4G
5G 4G

VoLTE

Yes
Yes
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) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20) / 850(band 26)
5G Bands:
FDD N1
TDD N41 / N77 / N78
5G Bands:
FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89
N/A
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)
4G Bands:
TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43)
FD-LTE 1700(band 66) / 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 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)
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SIM 2

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 17) / 800(band 20) / 850(band 26)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)
5G Bands:
FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89
N/A
N/A
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 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) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 12) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 1700(band 66)
View More

SAR Value

Head: 1.381 W/kg
Head: 0.917 W/kg Body: 0.561 W/kg
N/A

Wi-Fi

Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
Yes Wi-Fi 7 (802.11 be/ax) MIMO

Wi-Fi Features

Wi-Fi Direct Mobile Hotspot
Mobile Hotspot
Wi-Fi Direct Mobile Hotspot

Bluetooth

Yes v5.0
Yes v5.1
Yes v6.0

GPS

Yes with A-GPS Glonass
Yes with A-GPS Glonass
Yes with A-GPS Glonass

NFC

Yes
N/A
Yes

IR Blaster

N/A
N/A
Yes

Multimedia

Stereo Speakers

Yes
N/A
N/A

Audio Jack

3.5 mm
USB Type-C
USB Type-C

Audio Features

Dolby Atmos
N/A
N/A

Sensors

Fingerprint Sensor

Yes
Yes
Yes

Fingerprint Sensor Position

Side
On-screen
On-screen

Fingerprint Sensor Type

N/A
Optical
Ultrasonic

Other Sensors

Light sensor Proximity sensor Accelerometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer Gyroscope
Light sensor Proximity sensor Accelerometer Compass Gyroscope

Compare Prices

Not Available in any store
Not Available in any store
₹159,999