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Xiaomi Redmi 9T vs Realme 7 vs Samsung Galaxy A21S

Key Feature Comparison

6.8

Xiaomi Redmi 9T

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6.5

Samsung Galaxy A21s

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At a Glance

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Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Qualcomm Snapdragon 662, Adreno 610

Octa core (2.05 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)

MediaTek Helio G95, Mali-G76 MC4

Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)

Samsung Exynos 8 Octa 850, Mali-G52 MP1

6000 mAh

Li-Polymer, Fast, 18W

5000 mAh

Li-ion, Super Dart, 30W

5000 mAh

Li-ion, Fast, 15W

6.53 inches

395 ppi, FHD

6.5 inches

405 ppi, FHD

6.5 inches

270 ppi

Quad, 48MP + 8MP + 2MP + 2MP

1920x1080 @ 30 fps, 1280x720 @ 30 fps

Quad, 64MP + 8MP + 2MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 240 fps

Quad, 48MP + 8MP + 2MP + 2MP

1920x1080 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.53 inches
6.5 inches
6.5 inches

Screen Type

IPS LCD
IPS LCD
TFT

Screen Resolution

1080 x 2340 pixels
1080 x 2400 pixels
720 x 1600 pixels

Pixel Density

395 ppi
405 ppi
270 ppi

Aspect Ratio

19.5:9
20:09
20:09

Screen Protection

Gorilla Glass 3
Corning Gorilla Glass
-

Screen to Body Ratio

83.25%
90.50%
82.75%

Screen Design

Waterdrop notch
Punch hole
Punch hole

Screen Quality

FHD
FHD
-

Peak Brightness

400 nits
480 nits
-

Screen Refresh Rate

-
90 Hz
-

Phone Variants

4GB 64GB
6GB 64GB, 8GB 128GB
6GB 64GB, 4GB 64GB, 6GB 128GB

Expandable Storage

Yes
Yes
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
Yes, 512 GB

OTG Support

-
Yes
Yes

Sensors

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

Operating System

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

GPU

Adreno 610
Mali-G76 MC4
Mali-G52 MP1

Chipset

Qualcomm Snapdragon 662
MediaTek Helio G95
Samsung Exynos 8 Octa 850

CPU

Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)
Octa core (2.05 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)
Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)

Custom User Interface

MIUI
Realme UI
Samsung One UI

Clock Speed

2 GHz
2.05 GHz
2 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

-
12 nm
8 nm

Battery Capacity

6000 mAh
5000 mAh
5000 mAh

Battery Removable

No
No
No

Battery Type

Li-Polymer
Li-ion
Li-ion

Charger Type

Fast, 18W
Super Dart, 30W
Fast, 15W

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Charging Time

-
50 % in 26 minutes
-

Announced On

8-Jan-21
3-Sep-20
15-May-20

Market Status

Launched Globally
Available
Available

Brand

Xiaomi
Realme
Samsung

Price Status

Expected
Confirmed
Confirmed

Price

Rs. 14,290
Rs. 12,999
Rs. 13,999

Model Number

-
RMX2151
SM-A217FZB1INS/SM-A217FZBGINS/SM-A217FZB5INS

GPS

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

Audio Features

Hi-Res AudioStereo Speakers
Dirac Sound Effect, MT6359 Audio Decoding Chip
-

NFC

Yes
No
No

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

FM Radio

Yes
No
-

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
Yes, Wi-Fi 802.11, a/ac/b/g/n
Yes, Wi-Fi 802.11, 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 SIM, GSM+GSM

eSIM

No
No
No

Wi-Fi Features

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) / 700(band 28) / 1900(band 2) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800...
4G Bands: TD-LTE 2600(band 38) / 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...
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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800...

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) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G ...
4G Bands: TD-LTE 2600(band 38) / 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...
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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800...

Front Video Recording

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

Front Camera Setup

Single, 8MP
Single, 16MP
Single, 13MP

Front Camera 1 Resolution

8 MP
16 MP
13 MP

Front Camera 1 Type

f/2.05 Primary Camera
f/2.1, Wide Angle Primary Camera
f/2.2 Primary Camera

Front Aperture

f/2.05
f/2.1
f/2.2

Front Camera Features

-
Fixed Focus
-

Front Camera 1 Lens

-
26 mm focal length, 3" sensor size, 1 micrometre pixel size
3.1" sensor size, 1.12 micrometre pixel size

Front Sensor

-
Exmor RS
-

Weight

198 grams
196.5 grams
192 grams

Colors

Carbon Grey, Sunset Orange, Twilight Blue, Ocean Green
Mist Blue, Mist White
Black, Blue, White

Build

Glass front (Gorilla Glass 3), plastic frame, plastic back
Plastic, Splash resistant design
Back: Plastic

Dimensions

162.3 x 77.3 x 9.6 mm
162.3 x 75.4 x 9.4 mm
163.7 x 75.3 x 8.9 mm

SAR Value

-
Head: 0.990 W/kg, Body: 0.934 W/kg
Head: 0.831 W/kg

Rear Flash

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

Rear Video Recording

1920x1080 @ 30 fps, 1280x720 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 240 fps
1920x1080 @ 30 fps

Rear Camera Features

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

Rear Camera Setup

Quad, 48MP + 8MP + 2MP + 2MP
Quad, 64MP + 8MP + 2MP + 2MP
Quad, 48MP + 8MP + 2MP + 2MP

Rear Camera 1 Resolution

48 MP
64 MP
48 MP

Rear Camera 1 Type

f/1.79 Primary Camera
f/1.8, Wide Angle Primary Camera
f/2.0 (upto 8x Digital Zoom), Wide Angle Primary Camera

Rear Camera 1 Lens

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

Rear Camera 2 Resolution

8 MP
8 MP
8 MP

Rear Camera 2 Type

f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.3, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera

Rear Camera 3 Resolution

2 MP
2 MP
2 MP

Rear Camera 3 Type

f/2.4, Macro Camera
f/2.4, Macro Camera
f/2.4, Macro Camera

Rear Camera 4 Resolution

2 MP
2 MP
2 MP

Rear Camera 4 Type

f/2.4, Depth Camera
f/2.4, Depth Camera
f/2.4, Depth Camera

Rear Aperture

f/1.79
f/1.8
f/2.0

Rear Camera 2 Lens

-
16 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
4.0" sensor size, 1.12 micrometre pixel size

Rear Camera 3 Lens

-
22 mm focal length, 5.0" sensor size, 1.75 micrometre pixel size
-

Rear Camera 4 Lens

-
22 mm focal length, 5.0" sensor size, 1.75 micrometre pixel size
-

Rear Sensor

-
Exmor-RS CMOS Sensor
-

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Side
Side
Rear

Face Unlock

Yes
Yes
Yes

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