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Samsung Galaxy M51 vs Redmi K20 vs Redmi K20 Pro

Key Feature Comparison

7.3

Samsung Galaxy M51

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7

Redmi K20

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7

Redmi K20 Pro

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At a Glance

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Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)

Qualcomm Snapdragon 730G, Adreno 618

Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)

Qualcomm Snapdragon 730, Adreno 618

Octa core (2.84 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)

Qualcomm Snapdragon 855, Adreno 640

7000 mAh

Li-ion, Fast, 25W

4000 mAh

Li-Polymer, Quick, v3.0, 18W

4000 mAh

Li-Polymer, Quick, v4.0

6.7 inches

393 ppi, FHD

6.39 inches

403 ppi, FHD

6.39 inches

403 ppi, FHD

Quad, 64MP + 12MP + 5MP + 5MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

Triple, 48MP + 13MP + 8MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

Triple, 48MP + 13MP + 8MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM, Dual VoLTE

4G

Dual SIM, GSM+GSM, Dual VoLTE

Detailed Specs

Screen Size

6.7 inches
6.39 inches
6.39 inches

Screen Type

Super AMOLED
AMOLED
AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2340 pixels
1080 x 2340 pixels

Pixel Density

393 ppi
403 ppi
403 ppi

Aspect Ratio

20:09
19.5:9
19.5:9

Screen Protection

Gorilla Glass 3
Gorilla Glass 5
Gorilla Glass 5

Screen to Body Ratio

91%
91.90%
91.90%

Screen Design

Punch hole
Bezel-less
Bezel-less

Screen Quality

FHD
FHD
FHD

Peak Brightness

420 nits
-
-

Phone Variants

8GB 128GB, 6GB 128GB
6GB 128GB, 6GB 64GB
8GB 256GB, 6GB 128GB

Expandable Storage

Yes
No
No

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Storage Type

UFS 2.1
UFS 2.1
UFS 2.1

Expandable Storage Capacity

Yes, 512 GB
-
-

OTG Support

-
Yes
Yes

Sensors

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

Operating System

Android v10 (Q)
Android v9.0 (Pie)
Android v9.0 (Pie)

GPU

Adreno 618
Adreno 618
Adreno 640

Chipset

Qualcomm Snapdragon 730G
Qualcomm Snapdragon 730
Qualcomm Snapdragon 855

CPU

Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core (2.84 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)

Custom User Interface

Samsung One UI
MIUI
MIUI

Clock Speed

2.2 GHz
2.2 GHz
2.84 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

8 nm
8 nm
7 nm

Battery Capacity

7000 mAh
4000 mAh
4000 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-Polymer
Li-Polymer

Charger Type

Fast, 25W
Quick, v3.0, 18W
Quick, v4.0

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

31-Aug-20
5-May-19
28-May-19

Market Status

Available
Available
Available

Brand

Samsung
Xiaomi
Xiaomi

Model Number

SM-M515FZBEINS
MZB7756IN
MZB7750IN

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 19,999
Rs. 19,450
Rs. 24,999

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass

Audio Features

Dolby Atmos
24-bit/192kHz audioActive noise cancellation with dedicated mic
24-bit/192kHz audioActive noise cancellation with dedicated mic

NFC

Yes
Yes
No

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

3.5mm Audio Jack

Yes
Yes
Yes

SIM Size

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

Wi-Fi

Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n, MIMO
Yes, Wi-Fi 802.11, a/ac/b/g/n

Bluetooth Type

v5.0
v5.0
v5.0

Audio Jack

3.5 mm
3.5 mm
3.5 mm

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM, Dual VoLTE
Dual SIM, GSM+GSM, Dual VoLTE

eSIM

No
No
No

Wi-Fi Features

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

VoLTE

Yes
Yes
Yes

SIM 1 Bands

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 19...
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) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
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) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...

SIM 2 Bands

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 19...
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) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
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) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...

Front Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps

Front Camera Features

HDR
HDR
HDR

Front Camera Setup

Single, 32MP
Single, 20MP
Single, 20MP

Front Camera 1 Resolution

32 MP
20 MP
20 MP

Front Camera 1 Type

f/2.2, Wide Angle Primary Camera
f/2.2 Primary Camera
f/2.2 Primary Camera

Front Camera 1 Lens

26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
0.8 micrometre pixel size
0.8 micrometre pixel size

Front Sensor

Exmor RS
-
-

Front Aperture

f/2.2
f/2.2
f/2.2

Front Flash

No
-
-

Weight

213 grams
191 grams
191 grams

Colors

Celestial Black, Electric Blue
Carbon Black, Flame Red, Glacier Blue, Pearl White
Flame Red, Glacier Blue, Carbon Fiber Black, Pearl White

Build

Back: Plastic
Back: Gorilla Glass
Back: Gorilla Glass

Dimensions

163.9 x 76.3 x 9.5 mm
156.7 x 74.3 x 8.8 mm
156.7 x 74.3 x 8.8 mm

SAR Value

Head: 1.381 W/kg
Head: 1.07 W/kg, Body: 0.723 W/kg
Head: 1.03 W/kg, Body: 0.72 W/kg

OIS

No
-
No

Rear Flash

Yes, LED Flash
Yes, Dual LED Flash
Yes, Dual LED Flash

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

Rear Camera Features

8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Auto Flash, Face detection, Touch to focus
Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Quad, 64MP + 12MP + 5MP + 5MP
Triple, 48MP + 13MP + 8MP
Triple, 48MP + 13MP + 8MP

Rear Camera 1 Resolution

64 MP
48 MP
48 MP

Rear Camera 1 Type

f/1.8 (upto 8x Digital Zoom), Wide Angle Primary Camera
f/1.75 Primary Camera
f/1.75, Wide Angle Primary Camera

Rear Camera 1 Lens

26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

12 MP
13 MP
13 MP

Rear Camera 2 Type

f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Wide Angle, Ultra-Wide Angle Camera

Rear Camera 3 Resolution

5 MP
8 MP
8 MP

Rear Camera 3 Type

f/2.4, Macro Camera
f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera
f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera

Rear Camera 4 Resolution

5 MP
-
-

Rear Camera 4 Type

f/2.4, Depth Camera
-
-

Rear Sensor

Exmor-RS CMOS Sensor, ISOCELL Plus
Exmor-RS CMOS Sensor
Exmor-RS CMOS Sensor

Rear Aperture

f/1.8
f/1.75
f/1.75

Rear Camera 2 Lens

-
3" sensor size, 1.12 micrometre pixel size
3" sensor size, 1.12 micrometre pixel size

Rear Camera 3 Lens

-
4.0" sensor size, 1.12 micrometre pixel size
4.0" sensor size, 1.12 micrometre pixel size

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Side
On-Screen
On-Screen

Face Unlock

Yes
Yes
Yes

Fingerprint Scanner Type

-
Optical
Optical

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