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Xiaomi Redmi Note 9 vs Samsung Galaxy A21S vs Xiaomi Redmi Note 8

Key Feature Comparison

7.2

Xiaomi Redmi Note 9

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6.5

Samsung Galaxy A21s

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7.1

Redmi Note 8

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At a Glance

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Octa core (2 GHz, Dual core, Cortex A75 + 2 GHz, Hexa Core, Cortex A55)

MediaTek Helio G85, Mali-G52

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

Samsung Exynos 8 Octa 850, Mali-G52 MP1

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

Qualcomm Snapdragon 665, Adreno 610

5020 mAh

Li-ion, Fast, 22.5W

5000 mAh

Li-ion, Fast, 15W

4000 mAh

Li-Polymer, Fast, 18W

6.53 inches

395 ppi, FHD

6.5 inches

270 ppi

6.3 inches

409 ppi, FHD

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

3840x2160 @ 30 fps

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

1920x1080 @ 30 fps

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

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

Screen Type

IPS LCD
TFT
IPS LCD

Screen Resolution

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

Pixel Density

395 ppi
270 ppi
409 ppi

Aspect Ratio

19.5:9
20:09
19.5:9

Screen Protection

Gorilla Glass 5
-
Gorilla Glass 5

Screen to Body Ratio

84.37%
82.75%
90%

Screen Design

Punch hole
Punch hole
Waterdrop notch

Screen Refresh Rate

60 Hz
-
-

Screen Quality

FHD
-
FHD

Peak Brightness

450 nits
-
-

Phone Variants

4GB 64GB, 6GB 128GB, 4GB 128GB
6GB 64GB, 4GB 64GB, 6GB 128GB
4GB 64GB, 3GB 32GB, 6GB 128GB

Expandable Storage

Yes
Yes
Yes

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Storage Type

eMMC 5.1
eMMC 5.1
eMMC 5.1

Expandable Storage Capacity

Yes, 512 GB
Yes, 512 GB
Yes, 512 GB

OTG Support

Yes
Yes
Yes

Sensors

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

Operating System

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

GPU

Mali-G52
Mali-G52 MP1
Adreno 610

Chipset

MediaTek Helio G85
Samsung Exynos 8 Octa 850
Qualcomm Snapdragon 665

CPU

Octa core (2 GHz, Dual core, Cortex A75 + 2 GHz, Hexa Core, Cortex A55)
Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Custom User Interface

MIUI
Samsung One UI
MIUI

Clock Speed

2 GHz
2 GHz
2 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

12 nm
8 nm
11 nm

Battery Capacity

5020 mAh
5000 mAh
4000 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-ion
Li-Polymer

Charger Type

Fast, 22.5W
Fast, 15W
Fast, 18W

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

30-Apr-20
15-May-20
5-Aug-19

Market Status

Available
Available
Available

Brand

Xiaomi
Samsung
Xiaomi

Model Number

M2003J15SI/MZB082EIN
SM-A217FZB1INS/SM-A217FZBGINS/SM-A217FZB5INS
MZB8189IN

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 10,999
Rs. 13,999
Rs. 12,499

GPS

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

NFC

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

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

Front Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps

Front Camera Features

HDR, panorama
-
HDR, panorama

Front Camera Setup

Single, 13MP
Single, 13MP
Single, 13MP

Front Camera 1 Resolution

13 MP
13 MP
13 MP

Front Camera 1 Type

f/2.25 Primary Camera
f/2.2 Primary Camera
f/2.0 Primary Camera

Front Camera 1 Lens

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

Front Aperture

f/2.25
f/2.2
f/2.0

Front Flash

-
No
-

Weight

200 grams
192 grams
188 grams

Colors

Pebble Grey, Arctic White, Aqua Green
Black, Blue, White
Nepture Blue, Moonlight White, Cosmic Purple, Space Black

Build

Glass front (Gorilla Glass 5), plastic frame
Back: Plastic
Back: Gorilla Glass

Dimensions

161.4 x 76.7 x 8.7 mm
163.7 x 75.3 x 8.9 mm
158.3 x 75.3 x 8.3 mm

SAR Value

Head: 0.853 W/kg, Body: 0.433 W/kg
Head: 0.831 W/kg
Head: 1.13 W/kg, Body: 0.634 W/kg

Rear Flash

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

Rear Video Recording

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

Rear Camera Features

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

Rear Camera Setup

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

Rear Camera 1 Resolution

48 MP
48 MP
48 MP

Rear Camera 1 Type

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

Rear Camera 1 Lens

2" sensor size, 0.8 micrometre pixel size
26 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
8 MP
8 MP

Rear Camera 2 Type

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

Rear Camera 2 Lens

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

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 3 Lens

1.75 micrometre pixel size
-
5.0" sensor size, 1.75 micrometre pixel size

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 Camera 4 Lens

5.0" sensor size
-
5.0" sensor size, 1.75 micrometre pixel size

Rear Sensor

ISOCELL Plus
-
ISOCELL Plus

Rear Aperture

f/1.79
f/2.0
f/1.79

OIS

-
No
No

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Rear
Rear
Rear

Face Unlock

Yes
Yes
Yes

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