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Samsung Galaxy A51 vs Mi A3

Key Feature Comparison

6.9

Samsung Galaxy A51

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At a Glance

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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 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Qualcomm Snapdragon 665, Adreno 610

4000 mAh

Li-ion, Fast, 15W

4030 mAh

Li-ion, Quick, v3.0, 18W

6.5 inches

405 ppi, FHD

6.08 inches

283 ppi

Quad, 48MP + 12MP + 5MP + 5MP

3840x2160 @ 30 fps

Triple, 48MP + 8MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.5 inches
6.08 inches

Screen Type

Super AMOLED
Super AMOLED

Screen Resolution

1080 x 2400 pixels
720 x 1560 pixels

Pixel Density

405 ppi
283 ppi

Aspect Ratio

20:09
19.5:9

Screen Protection

Gorilla Glass 3
Gorilla Glass 5

Screen to Body Ratio

87.44%
82.15%

Screen Design

Punch hole
Waterdrop notch

Screen Quality

FHD
-

Phone Variants

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

Expandable Storage

Yes
Yes

RAM Type

LPDDR4X
LPDDR4X

Storage Type

UFS 2.0
UFS 2.1

Expandable Storage Capacity

Yes, 512 GB
Yes, 256 GB

OTG Support

Yes
Yes

Sensors

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

Operating System

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

GPU

Mali-G72 MP3
Adreno 610

Chipset

Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 665

CPU

Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Custom User Interface

Samsung One UI
Android One

Clock Speed

2.3 GHz
2 GHz

Architecture

64 bit
64 bit

Process Technology

10 nm
11 nm

Battery Capacity

4000 mAh
4030 mAh

Battery Removable

No
No

Battery Type

Li-ion
Li-ion

Charger Type

Fast, 15W
Quick, v3.0, 18W

USB Type-C

Yes
Yes

Fast Charging

Yes
Yes

Announced On

5-Dec-19
5-Jul-19

Market Status

Available
Available

Brand

Samsung
Xiaomi

Model Number

SM-A515FZB1INS/SM-A515FZBWINS
MZB7975IN

Price Status

Confirmed
Confirmed

Price

Rs. 20,450
Rs. 13,499

GPS

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

Audio Features

Dolby Atmos
Active noise cancellation with dedicated mic

NFC

Yes
No

Network Support

4G
4G

Bluetooth

Yes
Yes

3.5mm Audio Jack

Yes
Yes

SIM Size

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

Bluetooth Type

v5.0
v5.0

Audio Jack

3.5 mm
3.5 mm

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM

eSIM

No
No

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot

VoLTE

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) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 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 ...

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) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G...
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 /...

FM Radio

-
Yes

Front Video Recording

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

Front Camera Features

HDR
Fixed Focus

Front Camera Setup

Single, 32MP
Single, 32MP

Front Camera 1 Resolution

32 MP
32 MP

Front Camera 1 Type

f/2.2 Primary Camera
f/2.0 Primary Camera

Front Camera 1 Lens

2.8" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.8" sensor size, 1.6 micrometre pixel size

Front Aperture

f/2.2
f/2.0

Front Flash

No
-

Weight

172 grams
173.8 grams

Colors

Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue
More than White, Not just Blue, Kind of Grey

Build

Back: Plastic
Back: Mineral Glass

Dimensions

158.5 x 73.6 x 7.9 mm
153.4 x 71.85 x 8.4 mm

SAR Value

Head: 0.598 W/kg
Head: 0.527 W/kg, Body: 0.722 W/kg

OIS

No
No

Rear Flash

Yes, LED Flash
Yes, LED Flash

Rear Video Recording

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

Rear Camera Features

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

Rear Camera Setup

Quad, 48MP + 12MP + 5MP + 5MP
Triple, 48MP + 8MP + 2MP

Rear Camera 1 Resolution

48 MP
48 MP

Rear Camera 1 Type

f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.79 (upto 2x Digital Zoom) Primary Camera

Rear Camera 1 Lens

26 mm focal length, 2.25" sensor size, 0.8 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

12 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

Rear Camera 3 Resolution

5 MP
2 MP

Rear Camera 3 Type

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

Rear Camera 4 Resolution

5 MP
-

Rear Camera 4 Type

f/2.2, Depth Camera
-

Rear Sensor

ISO-CELL
Exmor-RS CMOS Sensor

Rear Aperture

f/2.0
f/1.79

Rear Camera 2 Lens

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

Fingerprint Scanner

Yes
Yes

Fingerprint Scanner Position

On-Screen
On-Screen

Fingerprint Scanner Type

Optical
Optical

Face Unlock

Yes
Yes

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