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Realme X3 vs Samsung Galaxy A51 vs Samsung A8 Star

Key Feature Comparison

6.9

Samsung Galaxy A51

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7.3

Samsung Galaxy A8 Star

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At a Glance

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Octa core (2.96 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)

Qualcomm Snapdragon 855 Plus, Adreno 640

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 + 1.8 GHz, Quad core, Kryo 260)

Qualcomm Snapdragon 660 MSM8956, Adreno 512

4200 mAh

Li-ion, Super Dart, 30W

4000 mAh

Li-ion, Fast, 15W

3700 mAh

Li-ion, Fast

6.6 inches

399 ppi, FHD

6.5 inches

405 ppi, FHD

6.3 inches

392 ppi, FHD

Quad, 64MP + 12MP + 8MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps

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

3840x2160 @ 30 fps

Dual, 16MP + 24MP

3840x2160 @ 30 fps, 1280x720 @ 240 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.6 inches
6.5 inches
6.3 inches

Screen Type

IPS LCD
Super AMOLED
Super AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2400 pixels
1080 x 2220 pixels

Pixel Density

399 ppi
405 ppi
392 ppi

Aspect Ratio

20:09
20:09
18.5:9

Screen Protection

Gorilla Glass 5
Gorilla Glass 3
-

Screen to Body Ratio

90.50%
87.44%
80.91%

Screen Design

Punch hole
Punch hole
Bezel-less

Screen Refresh Rate

120 Hz
-
-

Screen Quality

FHD
FHD
FHD

Peak Brightness

480 nits
-
-

Phone Variants

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

Expandable Storage

No
Yes
Yes

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Storage Type

UFS 3.0
UFS 2.0
eMMC 5.1

OTG Support

Yes
Yes
Yes

Expandable Storage Capacity

-
Yes, 512 GB
Yes, 400 GB

Sensors

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

Operating System

Android v10 (Q)
Android v10 (Q)
Android v8.0 (Oreo)

GPU

Adreno 640
Mali-G72 MP3
Adreno 512

Chipset

Qualcomm Snapdragon 855 Plus
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 660 MSM8956

CPU

Octa core (2.96 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)
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 + 1.8 GHz, Quad core, Kryo 260)

Custom User Interface

Realme UI
Samsung One UI
-

Clock Speed

2.96 GHz
2.3 GHz
2.2 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

7 nm
10 nm
14 nm

Battery Capacity

4200 mAh
4000 mAh
3700 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-ion
Li-ion

Charger Type

Super Dart, 30W
Fast, 15W
Fast

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Charging Time

100 % in 55 minutes
-
-

Announced On

25-Jun-20
5-Dec-19
5-Jun-18

Market Status

Available
Available
Out of Stock

Brand

Realme
Samsung
Samsung

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 24,999
Rs. 20,450
Rs. 24,208

Model Number

-
SM-A515FZB1INS/SM-A515FZBWINS
-

GPS

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

Audio Features

Dolby Atmos
Dolby Atmos
Active noise cancellation with dedicated micDolby Atmos sound (headphones only)

NFC

No
Yes
Yes

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

FM Radio

No
-
-

3.5mm Audio Jack

No
Yes
Yes

SIM Size

SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano (Hybrid)

Wi-Fi

Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz, MIMO
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
v5.0

Audio Jack

USB Type-C
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
Wi-Fi Direct, 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) / 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) / 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) / 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 17) / 850(band 18) / 850(band 19) / 800(band 20) / 8...

SIM 2 Bands

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) / 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) / 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 17) / 850(band 18) / 850(band 19) / 800(band 20) / 8...

Front Video Recording

1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps
1080p30fps

Front Camera Features

Panorama
HDR
Fixed Focus

Front Camera Setup

Dual, 16MP + 8MP
Single, 32MP
Single, 24MP

Front Camera 1 Resolution

16 MP
32 MP
24 MP

Front Camera 1 Type

f/2.1, Wide Angle (105 degree field-of-view) Primary Camera
f/2.2 Primary Camera
f/2.0 Primary Camera

Front Camera 1 Lens

3" sensor size, 1 micrometre pixel size
2.8" sensor size, 0.8 micrometre pixel size
-

Front Camera 2 Resolution

8 MP
-
-

Front Camera 2 Type

f/2.2, Wide Angle, Ultra-Wide Angle (105 degree field-of-view) Camera
-
-

Front Camera 2 Lens

4.0" sensor size, 1.12 micrometre pixel size
-
-

Front Sensor

Exmor RS
-
-

Front Aperture

f/2.1
f/2.2
f/2.0

Front Flash

-
No
No

Weight

202 grams
172 grams
188 grams

Colors

Glacier Blue, Arctic White
Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue
Black, White

Build

Back: Mineral Glass
Back: Plastic
Back: Gorilla Glass

Dimensions

163.8 x 75.8 x 8.9 mm
158.5 x 73.6 x 7.9 mm
162.4 x 77 x 7.5 mm

SAR Value

Head: 1.188 W/kg, Body: 0.906 W/kg
Head: 0.598 W/kg
Head: 0.179 W/kg

Rear Flash

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

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 60 fps
3840x2160 @ 30 fps
3840x2160 @ 30 fps, 1280x720 @ 240 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, 64MP + 12MP + 8MP + 2MP
Quad, 48MP + 12MP + 5MP + 5MP
Dual, 16MP + 24MP

Rear Camera 1 Resolution

64 MP
48 MP
16 MP

Rear Camera 1 Type

f/1.8, Wide Angle (78 degree field-of-view) Primary Camera
f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.7 Primary Camera

Rear Camera 1 Lens

26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.25" sensor size, 0.8 micrometre pixel size
27 mm focal length, 2.8" sensor size, 0.9 micrometre pixel size

Rear Camera 2 Resolution

12 MP
12 MP
24 MP

Rear Camera 2 Type

f/2.5 Telephoto (upto 2x Optical Zoom) Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/1.7 Camera

Rear Camera 2 Lens

51 mm focal length, 3.4" sensor size, 1 micrometre pixel size
-
-

Rear Camera 3 Resolution

8 MP
5 MP
-

Rear Camera 3 Type

f/2.3, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Macro Camera
-

Rear Camera 3 Lens

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

Rear Camera 4 Resolution

2 MP
5 MP
-

Rear Camera 4 Type

f/2.4, Macro Camera
f/2.2, Depth Camera
-

Rear Camera 4 Lens

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

Rear Sensor

ISOCELL Plus
ISO-CELL
CMOS image sensor

Rear Aperture

f/1.8
f/2.0
f/1.7

OIS

-
No
No

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Side
On-Screen
Rear

Face Unlock

Yes
Yes
Yes

Fingerprint Scanner Type

-
Optical
-

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