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Xiaomi Redmi 8A Dual vs Samsung Galaxy M30S vs Xiaomi Mi A2

Key Feature Comparison

6.6

Xiaomi Redmi 8A Dual

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6.9

Samsung Galaxy M30s

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6.7

Xiaomi Mi A2

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At a Glance

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Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)

Qualcomm Snapdragon 439, Adreno 505

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, Quad core, Kryo 260 + 1.84 GHz, Quad core, Kryo 260)

Qualcomm Snapdragon 660, Adreno 512

5000 mAh

Li-Polymer, Fast, 18W

6000 mAh

Li-ion, Fast, 15W

3010 mAh

Li-Polymer, Quick, v4.0

6.22 inches

270 ppi

6.4 inches

403 ppi, FHD

5.99 inches

403 ppi, FHD

Dual, 13MP + 2MP

1920x1080 @ 30 fps, 1280x720 @ 30 fps

Triple, 48MP + 8MP + 5MP

3840x2160 @ 30 fps

Dual, 12MP + 20MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 120 fps, 720x480 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM, Dual VoLTE

Detailed Specs

Screen Size

6.22 inches
6.4 inches
5.99 inches

Screen Type

IPS LCD
Super AMOLED
IPS LCD

Screen Resolution

720 x 1520 pixels
1080 x 2340 pixels
1080 x 2160 pixels

Pixel Density

270 ppi
403 ppi
403 ppi

Screen Protection

Gorilla Glass 5
No
Gorilla Glass 5

Screen to Body Ratio

81.48%
91%
77.38%

Screen Design

Waterdrop notch
Regular notch
Bezel-less

Peak Brightness

400 nits
420 nits
-

Aspect Ratio

-
19.5:9
18:09

Screen Quality

-
FHD
FHD

Phone Variants

3GB 64GB, 3GB 32GB, 2GB 32GB
4GB 64GB, 6GB 128GB, 4GB 128GB
4GB 64GB, 6GB 128GB

Expandable Storage

Yes
Yes
No

RAM Type

LPDDR3
LPDDR4X
LPDDR4X

Storage Type

eMMC 5.1
UFS 2.1
eMMC 5.1

Expandable Storage Capacity

Yes, 512 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, Compass, Gyroscope

Operating System

Android v9.0 (Pie)
Android v9.0 (Pie)
Android v8.1 (Oreo)

GPU

Adreno 505
Mali-G72 MP3
Adreno 512

Chipset

Qualcomm Snapdragon 439
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 660

CPU

Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.2 GHz, Quad core, Kryo 260 + 1.84 GHz, Quad core, Kryo 260)

Custom User Interface

MIUI
Samsung One UI
Android One

Clock Speed

1.95 GHz
2.3 GHz
2.2 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

12 nm
10 nm
14 nm

Battery Capacity

5000 mAh
6000 mAh
3010 mAh

Battery Removable

No
No
No

Battery Type

Li-Polymer
Li-ion
Li-Polymer

Charger Type

Fast, 18W
Fast, 15W
Quick, v4.0

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

11-Feb-20
5-Sep-19
5-Jul-18

Market Status

Available
Out of Stock
Available

Brand

Xiaomi
Samsung
Xiaomi

Model Number

M1908C3KI
SM-M307FZWDINS
-

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 6,999
Rs. 15,900
Rs. 10,449

GPS

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

NFC

No
No
No

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

FM Radio

Yes, Wireless FM
Yes
Yes

3.5mm Audio Jack

Yes
Yes
No

SIM Size

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

Wi-Fi

Yes, Wi-Fi 802.11, b/g/n
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

v4.2
v5.0
v5.0

Audio Jack

3.5 mm
3.5 mm
USB Type-C

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
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 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) / 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 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) / 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) / 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 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...

Audio Features

-
Dolby Atmos
Active noise cancellation with dedicated mic

Front Video Recording

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

Front Camera Features

HDR
HDR
LED flash, Auto-HDR

Front Camera Setup

Single, 8MP
Single, 16MP
Single, 20MP

Front Camera 1 Resolution

8 MP
16 MP
20 MP

Front Camera 1 Type

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

Front Camera 1 Lens

1.12 micrometre pixel size
-
2.8" sensor size, 1 micrometre pixel size

Front Sensor

CMOS
-
Exmor RS

Front Aperture

f/2.0
f/2.0
f/2.2

Front Flash

-
No
Yes, Soft light flash

Weight

188 grams
188 grams
168 grams

Colors

Midnight Grey, Sea Blue, Sky White
Opal Black, Sapphire Blue, Pearl White
Black, Gold, Red, Lake Blue, Rose Gold

Build

Back: Plastic
Back: Plastic
Back: Aluminium

Dimensions

156.4 x 75.4 x 9.4 mm
159 x 75.1 x 8.9 mm
158.7 x 75.4 x 7.3 mm

SAR Value

-
Head: 0.486 W/kg
Head: 1.092 W/kg, Body: 0.259 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
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 120 fps, 720x480 @ 30 fps

Rear Camera Features

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

Rear Camera Setup

Dual, 13MP + 2MP
Triple, 48MP + 8MP + 5MP
Dual, 12MP + 20MP

Rear Camera 1 Resolution

13 MP
48 MP
12 MP

Rear Camera 1 Type

f/2.2 Primary Camera
f/2.0 (upto 4x Digital Zoom), Wide Angle (80 degree field-of-view) Primary Camera
f/1.75 Primary Camera

Rear Camera 1 Lens

3.1" sensor size, 1.12 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
2.9" sensor size, 1.25 micrometre pixel size

Rear Camera 2 Resolution

2 MP
8 MP
20 MP

Rear Camera 2 Type

f/2.4, Depth Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/1.7 Camera

Rear Camera 2 Lens

1.75 micrometre pixel size
-
2.8" sensor size, 1 micrometre pixel size

Rear Sensor

CMOS image sensor
ISOCELL Plus
Exmor-RS CMOS Sensor

Rear Aperture

f/2.2
f/2.0
f/1.75

OIS

-
No
No

Rear Camera 3 Resolution

-
5 MP
-

Rear Camera 3 Type

-
f/2.2, Depth Camera
-

Fingerprint Scanner

No
Yes
Yes

Face Unlock

Yes
Yes
Yes

Fingerprint Scanner Position

-
Rear
Rear

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