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Samsung Galaxy M21 vs Realme X vs Xiaomi Redmi Note 7 Pro

- Updated: 28th May 2020, 04:53 IST

Key Feature Comparison

Samsung Galaxy M21

Xiaomi Redmi Note 7 Pro

Show differences only

At a Glance

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

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

Octa core (2.2 GHz, Dual core, Kryo 360 + 1.7 GHz, Hexa Core, Kryo 360)

Qualcomm Snapdragon 710, Adreno 616

Octa core (2 GHz, Dual core, Kryo 460 + 1.7 GHz, Hexa Core, Kryo 460)

Qualcomm Snapdragon 675, Adreno 612

6000 mAh

Li-ion, Fast, 15W

3765 mAh

Li-Po, VOOC, v3.0, 20W

4000 mAh

Li-Polymer, Quick, v4.0

6.4 inches

403 ppi, FHD

6.53 inches

394 ppi, FHD

6.3 inches

409 ppi, FHD

Triple, 48MP + 8MP + 5MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

Dual, 48MP + 5MP

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

Dual, 48MP + 5MP

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

6.4 inches

6.53 inches

6.3 inches

Screen Type

Super AMOLED

AMOLED

IPS LCD

Screen Resolution

1080 x 2340 pixels

1080 x 2340 pixels

1080 x 2340 pixels

Pixel Density

403 ppi

394 ppi

409 ppi

Aspect Ratio

19.5:9

19.5:9

19.5:9

Screen Protection

Gorilla Glass 3

Gorilla Glass 5

Gorilla Glass 5

Screen to Body Ratio

91%

85.9%

81.21 %

Screen Design

Waterdrop notch

Bezel-less

Waterdrop notch

Screen Quality

FHD

FHD

FHD

Peak Brightness

420 nits

-

-

Phone Variants

4GB 64GB, 6GB 128GB

128GB 4GB RAM, 128GB 8GB RAM

6GB 64GB, 4GB 64GB, 6GB 128GB

Expandable Storage

Yes

No

Yes

RAM Type

LPDDR4X

LPDDR4X

LPDDR4X

Storage Type

UFS 2.1

UFS 2.1

eMMC 5.1

Expandable Storage Capacity

Yes, 512 GB

-

Yes, 256 GB

OTG Support

Yes

Yes

Yes

Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope

Accelerometer, gyro, proximity, compass

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Operating System

Android v10 (Q)

Android 9.0 (Pie)

Android v9.0 (Pie)

GPU

Mali-G72 MP3

Adreno 616

Adreno 612

Chipset

Samsung Exynos 9 Octa 9611

Qualcomm Snapdragon 710

Qualcomm Snapdragon 675

CPU

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

Octa core (2.2 GHz, Dual core, Kryo 360 + 1.7 GHz, Hexa Core, Kryo 360)

Octa core (2 GHz, Dual core, Kryo 460 + 1.7 GHz, Hexa Core, Kryo 460)

Custom User Interface

Samsung One UI

ColorOS

MIUI

Clock Speed

2.3 GHz

2.2 GHz

2 GHz

Architecture

64 bit

64 bit

64 bit

Process Technology

10 nm

10 nm

11 nm

Battery Capacity

6000 mAh

3765 mAh

4000 mAh

Battery Removable

No

No

No

Battery Type

Li-ion

Li-Po

Li-Polymer

Charger Type

Fast, 15W

VOOC, v3.0, 20W

Quick, v4.0

USB Type-C

Yes

Yes

Yes

Fast Charging

Yes

Yes

Yes

Charging Time

-

55 % in 30 minutes

-

Announced On

18-Mar-20

18-Jul-19

13-Mar-19

Market Status

Available

Available

Available

Brand

Samsung

Realme

Xiaomi

Model Number

SM-M215FZKDINS

RMX1901

M1901F7S

Price Status

Confirmed

Confirmed

Confirmed

Price

Rs. 13,499

Rs. 17,999

Rs. 14,900

GPS

Yes A-GPS, Glonass

Yes, A-GPS, GLONASS

Yes A-GPS, Glonass

Audio Features

Dolby Atmos

Dolby Atmos

Active noise cancellation with dedicated mic

NFC

No

No

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 (Hybrid)

Wi-Fi

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

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

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

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

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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...

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 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, EDGE: Available...

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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...

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 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, EDGE: Available...

FM Radio

-

No

Yes

Front Video Recording

1920x1080 @ 30 fps

1920x1080 @ 30 fps

1920x1080 @ 30 fps

Front Camera Features

HDR

HDR

HDR

Front Camera Setup

Single, 20MP

Single, 16MP

Single, 13MP

Front Camera 1 Resolution

20 MP

16 MP

13 MP

Front Camera 1 Type

f/2.2 Primary Camera

f/2.0, Wide Angle Primary Camera

f/2.0, Primary Camera

Front Camera 1 Lens

26 mm focal length

3.41 mm focal length, 1 micrometre pixel size

1.12 micrometre pixel size

Front Sensor

CMOS

CMOS

-

Front Aperture

f/2.2

f/2.0

f/2.0

Front Flash

No

-

-

Weight

188 grams

191 grams

186 grams

Colors

Midnight Blue, Raven Black

Steam White, Space Blue

Space Black, Neptune Blue, Nebula Red, Astro White

Build

Back: Plastic

Plastic body

Back: Gorilla Glass

Dimensions

159 x 75.1 x 8.9 mm

161.2 x 76.1 x 9.4 mm

159.2 x 75.2 x 8.1 mm

SAR Value

Head: 0.468 W/kg

-

Head: 0.962 W/kg, Body: 0.838 W/kg

OIS

No

No

-

Rear Flash

Yes, LED Flash

Yes, LED Flash

Yes, LED Flash

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

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

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

Rear Camera Features

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

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

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

Rear Camera Setup

Triple, 48MP + 8MP + 5MP

Dual, 48MP + 5MP

Dual, 48MP + 5MP

Rear Camera 1 Resolution

48 MP

48 MP

48 MP

Rear Camera 1 Type

f/2.0 (upto 4x Digital Zoom) Primary Camera

f/1.8 (upto 2x Digital Zoom) Primary Camera

f/1.79, Primary Camera

Rear Camera 1 Lens

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

4.73 mm focal length, 2" sensor size, 0.8 micrometre pixel size

2" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

8 MP

5 MP

5 MP

Rear Camera 2 Type

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

f/2.4, Depth Camera

f/2.4, Depth Camera

Rear Camera 2 Lens

12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size

2.176 mm focal length

-

Rear Camera 3 Resolution

5 MP

-

-

Rear Camera 3 Type

f/2.2, Depth Camera

-

-

Rear Sensor

CMOS image sensor

Exmor-RS CMOS Sensor

Exmor-RS CMOS Sensor

Rear Aperture

f/2.0

f/1.8

f/1.79

Fingerprint Scanner

Yes

Yes

Yes

Fingerprint Scanner Position

Rear

On-Screen

Rear

Face Unlock

Yes

Yes

Yes

Fingerprint Scanner Type

-

Optical

-

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