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Xiaomi Mi A3 vs Samsung Galaxy M21

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Rs. 11,499

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Summary
80%
79%
Performance

Snapdragon 665

4 GB RAM

Samsung Exynos 9 Octa 9611

4 GB RAM

Display

6.08" (15.44 cm)

720x1560 px (HD+)

6.4" (16.26 cm)

1080x2340 px (FHD+)

Rear Camera

48 MP + 8 MP + 2 MP

Triple Camera

48 MP + 8 MP + 5 MP

Triple Camera

Front Camera

32 MP

Single Camera

20 MP

Single Camera

Battery

4030 mAh

6000 mAh

Storage

64 GB

256 GB (Expandable)

64 GB

512 GB (Expandable)

Expert Rating

3.5/5

Read Expert Review

3.5/5

Read Expert Review

User Rating

★★★★★
★★★★★

4.2/5 based on 102,674 ratings

Read All User Reviews

★★★★★
★★★★★

4.2/5 based on 248,431 ratings

Read All User Reviews

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General
Launch Date

August 23, 2019 (Official)

March 18, 2020 (Official)

Operating System

Android v9.0 (Pie)

Android v10 (Q)

Custom UI

Android One

Samsung One UI

Performance
Good
Good
Chipset

Qualcomm Snapdragon 665

Samsung Exynos 9 Octa 9611

CPU

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

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

Architecture

64 bit

64 bit

Graphics

Adreno 610

Mali-G72 MP3

RAM

4 GB

4 GB

RAM Type

LPDDR4X

LPDDR4X

Display
Good
Very Good
Display Type

Super AMOLED

Super AMOLED

Screen Size

6.08 " (15.44 cm)

6.4 " (16.26 cm)

Resolution

720x1560 px (HD+)

1080x2340 px (FHD+)

Aspect Ratio

19.5:9

19.5:9

Pixel Density

283 ppi

403 ppi

Screen to Body Ratio (calculated)

82.15 %

84.02 %

Screen Protection

Corning Gorilla Glass v5

Corning Gorilla Glass v3

Bezel-less display

with waterdrop notch

with waterdrop notch

Touch Screen

, Capacitive Touchscreen, Multi-touch

, Capacitive Touchscreen, Multi-touch

Brightness

420 nits

Screen to Body Ratio (claimed by the brand)

91 %

Design
Size Compare
Size Compare
Dimensions

Height: 153.4 mm
Width: 71.85 mm
Thickness: 8.4 mm

Height: 159 mm
Width: 75.1 mm
Thickness: 8.9 mm

Weight

173.8 grams

188 grams

Build Material

Back: Mineral Glass

Back: Plastic

Colours

More than White, Not just Blue, Kind of Grey

Midnight Blue, Raven Black

Waterproof

, Splash proof

Camera
Main Camera
Camera Setup

Triple

Triple

Resolution

48 MP f/1.79, Primary Camera(2" sensor size, 0.8µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(13 mm focal length, 4.0" sensor size, 1.12µm pixel size)2 MP f/2.4, Depth Camera

48 MP f/2.0, Primary Camera(26 mm focal length, 2" sensor size, 0.8µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(12 mm focal length, 4.0" sensor size, 1.12µm pixel size)5 MP f/2.2, Depth Camera

Sensor

IMX586, Exmor-RS CMOS Sensor

CMOS image sensor

Autofocus

, Phase Detection autofocus

, Phase Detection autofocus

OIS

No

No

Flash

, LED Flash

, LED Flash

Image Resolution

8000 x 6000 Pixels

8000 x 6000 Pixels

Settings

Exposure compensation, ISO control

Exposure compensation, ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

2 x Digital Zoom
Auto Flash
Face detection
Touch to focus

4 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

3840x2160 @ 30 fps
1920x1080 @ 60 fps

3840x2160 @ 30 fps
1920x1080 @ 30 fps

Front Camera
Very Good
Very Good
Camera Setup

Single

Single

Resolution

32 MP f/2.0, Primary Camera(26 mm focal length, 2.8" sensor size, 1.6µm pixel size)

20 MP f/2.2, Primary Camera(26 mm focal length)

Sensor

CMOS

Autofocus

No

Flash

No

Camera Features

Fixed Focus

Video Recording

1920x1080 @ 30 fps
1280x720 @ 30 fps

1920x1080 @ 30 fps

Battery
Good
Very Good
Capacity

4030 mAh

6000 mAh

Type

Li-ion

Li-ion

Removable

No

No

Standby time

Up to 480 Hours(2G)

Quick Charging

, Quick, v3.0, 18W

, Fast, 15W

USB Type-C

Storage
Best in Class
Best in Class
Internal Memory

64 GB

64 GB

Expandable Memory

, Up to 256 GB

, Up to 512 GB

User Available Storage

Up to 49 GB

USB OTG

Network & Connectivity
SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Nano
SIM2: Nano (Hybrid)

SIM1: Nano
SIM2: Nano

Network Support

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

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

VoLTE

SIM 1

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40)
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 Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

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:
Available
EDGE:
Available
Read More..

SIM 2

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 800(band 20)
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 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:
Available
EDGE:
Available
Read More..

SAR Value

Head: 0.527 W/kg, Body: 0.722 W/kg

Head: 0.468 W/kg

Wi-Fi

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

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

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

Bluetooth

, v5.0

, v5.0

GPS

with A-GPS, Glonass

with A-GPS, Glonass

NFC

No

No

USB Connectivity

Mass storage device, USB charging

Mass storage device, USB charging

Multimedia
FM Radio

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Audio Features

Dolby Atmos

Sensors
Fingerprint Sensor

Fingerprint Sensor Position

On-screen

Rear

Fingerprint Sensor Type

Optical

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Light sensor, Proximity sensor, Accelerometer, Gyroscope

Price list

Rs. 11,499
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