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Samsung Galaxy A51 vs Xiaomi Redmi Note 9 Pro

Summary
Performance

Samsung Exynos 9 Octa 9611

6 GB RAM

Snapdragon 720G

4 GB RAM

MediaTek Dimensity 6100 Plus

4 GB RAM

Display

6.5" (16.51 cm)

1080x2400 px (FHD+)

6.67" (16.94 cm)

1080x2400 px (FHD+)

6.5" (16.51 cm)

1080x2340 px (FHD+)

Rear Camera

48 MP + 12 MP + 5 MP + 5 MP

Quad Camera

48 MP + 8 MP + 5 MP + 2 MP

Quad Camera

50 MP + 5 MP + 2 MP

Triple Camera

Front Camera

32 MP

Single Camera

16 MP

Single Camera

13 MP

Single Camera

Battery

4000 mAh

32 h talktime (4G)

5020 mAh

29 h talktime (2G)

6000 mAh

Storage

128 GB

512 GB (Expandable)

64 GB

512 GB (Expandable)

128 GB

1 TB (Expandable)

Expert Rating

4.0/5

Read Expert Review

4.0/5

Read Expert Review

User Rating

★★★★★
★★★★★

4.3/5 based on 13,285 ratings

Read All User Reviews

★★★★★
★★★★★

4.3/5 based on 161,627 ratings

Read All User Reviews

Benchmarks

N/A

Compare Prices
Not Available in any store
Notify me when it's available
Rs. 12,994 @Croma Buy
Rs. 13,999 @Amazon Buy
Not available in any other store
Rs. 11,999 @Flipkart Buy
Not available in any other store
General
Launch Date

January 29, 2020 (Official)

March 17, 2020 (Official)

March 4, 2024 (Official)

Operating System

Android v10 (Q)

Android v10 (Q)

Android v14

Custom UI

Samsung One UI

MIUI

Samsung One UI

Performance
Good
Good
Good
Chipset

Samsung Exynos 9 Octa 9611

Qualcomm Snapdragon 720G

MediaTek Dimensity 6100 Plus

CPU

Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)

Octa core (2.2 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)

Architecture

64 bit

64 bit

64 bit

Graphics

Mali-G72 MP3

Adreno 618

Mali-G57 MC2

RAM

6 GB

4 GB

4 GB

RAM Type

LPDDR4X

LPDDR4X

Display
Very Good
Good
Very Good
Display Type

Super AMOLED

IPS LCD

Super AMOLED

Screen Size

6.5 " (16.51 cm)

6.67 " (16.94 cm)

6.5 " (16.51 cm)

Resolution

1080x2400 px (FHD+)

1080x2400 px (FHD+)

1080x2340 px (FHD+)

Aspect Ratio

20:9

20:9

20:9

Pixel Density

405 ppi

395 ppi

396 ppi

Screen to Body Ratio (calculated)

87.44 %

84.62 %

84.17 %

Screen Protection

Corning Gorilla Glass v3

Corning Gorilla Glass v5

Bezel-less display

with punch-hole display

with punch-hole display

with notch

Touch Screen

, Capacitive Touchscreen, Multi-touch

, Capacitive Touchscreen, Multi-touch

, Capacitive Touchscreen, Multi-touch

Brightness

450 nits

Refresh Rate

60 Hz

90 Hz

Design
Size Compare
Size Compare
Size Compare
Dimensions

Height: 158.5 mm
Width: 73.6 mm
Thickness: 7.9 mm

Height: 165.7 mm
Width: 76.6 mm
Thickness: 8.8 mm

Height: 160.1 mm
Width: 76.8 mm
Thickness: 9.3 mm

Weight

172 grams

209 grams

217 grams

Build Material

Back: Plastic

Back: Gorilla Glass

Colours

Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue

Aurora Blue, Glacier White, Interstellar Black, Champagne Gold

Ash Black, Groovy Violet, Jazzy Green

Waterproof

, Splash proof

Camera
Main Camera
Camera Setup

Quad

Quad

Triple

Resolution

48 MP f/2.0, Primary Camera(26 mm focal length, 2.25" sensor size, 0.8µm pixel size)12 MP f/2.2, Ultra-Wide Angle Camera
5 MP f/2.4, Macro Camera
5 MP f/2.2, Depth Camera

48 MP f/1.79, Primary Camera(2.25" sensor size, 1.6µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(1.12µm pixel size)5 MP f/2.4, Macro Camera(1.12µm pixel size)2 MP f/2.4, Depth Camera(1.75µm pixel size)

50 MP f/1.8, Wide Angle, Primary Camera
5 MP f/2.2, Ultra-Wide Angle Camera
2 MP f/2.4, Macro Camera

Sensor

S5KGM2, ISO-CELL

S5KGM2, CMOS image sensor, ISOCELL Plus

Autofocus

, Phase Detection autofocus

OIS

No

No

Flash

, LED Flash

, LED Flash

, LED Flash

Image Resolution

8000 x 6000 Pixels

8000 x 6000 Pixels

8150 x 6150 Pixels

Settings

Exposure compensation, ISO control

Exposure compensation, ISO control

Exposure compensation, ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Continuous Shooting
High Dynamic Range mode (HDR)
Burst mode
Macro Mode

Continuous Shooting
High Dynamic Range mode (HDR)
Macro Mode

Camera Features

8 x Digital Zoom
Auto Flash
Face detection
Touch to focus

10 x Digital Zoom
Auto Flash
Custom Watermark
Face detection
Touch to focus

10 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

3840x2160 @ 30 fps

3840x2160 @ 30 fps
1920x1080 @ 60 fps
1280x720 @ 960 fps

1920x1080 @ 30 fps

Video Recording Features

Slo-motion
Macro Video
Kaleidoscope
Short Video Mode

Front Camera
Very Good
Very Good
Very Good
Camera Setup

Single

Single

Single

Resolution

32 MP f/2.2, Primary Camera(2.8" sensor size, 0.8µm pixel size)

16 MP, Primary Camera(1µm pixel size)

13 MP f/2.0, Wide Angle, Primary Camera

Autofocus

No

No

Flash

No

No

Camera Features

Fixed Focus

Video Recording

1920x1080 @ 30 fps

1920x1080 @ 30 fps
1280x720 @ 30 fps

1920x1080 @ 30 fps

Battery
Good
Very Good
Very Good
Capacity

4000 mAh

5020 mAh

6000 mAh

Type

Li-ion

Li-Polymer

Li-ion

Removable

No

No

No

TalkTime

Up to 32 Hours(4G)

Up to 29 Hours(2G)

Standby time

Up to 492 Hours(2G)

Quick Charging

, Fast, 15W

, Fast, 18W

, Fast, 25W

USB Type-C

Storage
Best in Class
Best in Class
Best in Class
Internal Memory

128 GB

64 GB

128 GB

Expandable Memory

, Up to 512 GB

, Up to 512 GB

, Up to 1 TB

User Available Storage

Up to 106 GB

Up to 108 GB

USB OTG

Network & Connectivity
SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Nano
SIM2: Nano

SIM1: Nano
SIM2: Nano

SIM1: Nano
SIM2: Nano (Hybrid)

Network Support

5G Not Supported in India, 4G Supported in India, 3G, 2G

5G Not Supported in India, 4G Supported in India, 3G, 2G

5G Supported in India, 4G Supported in India, 3G, 2G

VoLTE

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)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

4G Bands:
TD-LTE 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

5G Bands:
FDD N1 / N3 / N5 / N7 / N8 / N20 / N28 / N66
TDD N38 / N40 / N41 / N77 / N78
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)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

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 13) / 700(band 17) / 800(band 20) / 850(band 26)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

4G Bands:
TD-LTE 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

5G Bands:
FDD N1 / N3 / N5 / N7 / N8 / N20 / N28 / N66
TDD N38 / N40 / N41 / N77 / N78
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)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

SAR Value

Head: 0.598 W/kg

Head: 0.898 W/kg, Body: 0.483 W/kg

Wi-Fi

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

, Wi-Fi 5 (802.11 b/g/n/ac), MIMO

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

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Calling

Bluetooth

, v5.0

, v5.0

, v5.3

GPS

with A-GPS, Glonass

with A-GPS, Glonass

with A-GPS, Glonass

NFC

No

No

USB Connectivity

Mass storage device, USB charging

Mass storage device, USB charging

Mass storage device, USB charging

Multimedia
FM Radio

, Recording option

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

3.5 mm

Audio Features

Dolby Atmos

Sensors
Fingerprint Sensor

Fingerprint Sensor Position

On-screen

Side

Side

Fingerprint Sensor Type

Optical

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Price list

Not Available
Rs. 13,999
Buy Now
Not Available

Not Available
Rs. 12,994
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Offer: 5% up to Rs 15000 Instant discount on AU Small Finance Credit Card.

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Rs. 11,999
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