Select City
TECH500

Realme 7i vs Samsung Galaxy A51

Key Feature Comparison

6.9

Samsung Galaxy A51

Check Price
close
Add more phone to compare

At a Glance

Show differences only

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

Qualcomm Snapdragon 662, Adreno 610

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

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

5000 mAh

Li-ion, Quick, 18W

4000 mAh

Li-ion, Fast, 15W

16.51 cm (6.5 inch)

270 ppi

16.51 cm (6.5 inch)

405 ppi, FHD

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

1920x1080 @ 30 fps, 1280x720 @ 60 fps

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

3840x2160 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

16.51 cm (6.5 inch)
16.51 cm (6.5 inch)

Screen Type

IPS LCD
Super AMOLED

Screen Resolution

720 x 1600 pixels
1080 x 2400 pixels

Pixel Density

270 ppi
405 ppi

Aspect Ratio

20:09
20:09

Screen Protection

Gorilla Glass 3
Gorilla Glass 3

Screen to Body Ratio

90%
87.44%

Screen Design

Punch hole
Punch hole

Screen Refresh Rate

90 Hz
-

Peak Brightness

480 nits
-

Screen Quality

-
FHD

Phone Variants

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

Expandable Storage

Yes
Yes

RAM Type

LPDDR4X
LPDDR4X

Storage Type

UFS 2.1
UFS 2.0

Expandable Storage Capacity

Yes, 256 GB
Yes, 512 GB

OTG Support

Yes
Yes

Sensors

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

Operating System

Android v10 (Q)
Android v10 (Q)

GPU

Adreno 610
Mali-G72 MP3

Chipset

Qualcomm Snapdragon 662
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)

Custom User Interface

Realme UI
Samsung One UI

Clock Speed

2 GHz
2.3 GHz

Architecture

64 bit
64 bit

Process Technology

11 nm
10 nm

Battery Capacity

5000 mAh
4000 mAh

Battery Removable

No
No

Battery Type

Li-ion
Li-ion

Charger Type

Quick, 18W
Fast, 15W

USB Type-C

Yes
Yes

Fast Charging

Yes
Yes

Announced On

17-Sep-20
5-Dec-19

Market Status

Available
Available

Brand

Realme
Samsung

Model Number

RMX2103
SM-A515FZB1INS/SM-A515FZBWINS

Price Status

Confirmed
Confirmed

Price

Rs. 11,999
Rs. 20,450

GPS

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

NFC

No
Yes

Network Support

4G
4G

Bluetooth

Yes
Yes

3.5mm Audio Jack

Yes
Yes

SIM Size

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

Wi-Fi

Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz

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

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) / 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...

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...

Audio Features

-
Dolby Atmos

Front Video Recording

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

Front Camera Features

Fixed Focus
HDR

Front Camera Setup

Single, 16MP
Single, 32MP

Front Camera 1 Resolution

16 MP
32 MP

Front Camera 1 Type

f/2.1, Wide Angle Primary Camera
f/2.2 Primary Camera

Front Camera 1 Lens

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

Front Sensor

Exmor RS
-

Front Aperture

f/2.1
f/2.2

Front Flash

Yes, Screen flash
No

Weight

188 grams
172 grams

Colors

Fusion Green, Fusion Blue
Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue

Dimensions

164.1 x 75.5 x 8.5 mm
158.5 x 73.6 x 7.9 mm

SAR Value

Head: 1.098 W/kg, Body: 0.531 W/kg
Head: 0.598 W/kg

Build

-
Back: Plastic

Rear Flash

Yes, LED Flash
Yes, LED Flash

Rear Video Recording

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

Rear Camera Features

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

Rear Camera Setup

Quad, 64MP + 8MP + 2MP + 2MP
Quad, 48MP + 12MP + 5MP + 5MP

Rear Camera 1 Resolution

64 MP
48 MP

Rear Camera 1 Type

f/1.8, Wide Angle (80 degree field-of-view) Primary Camera
f/2.0 (upto 8x Digital Zoom) Primary Camera

Rear Camera 1 Lens

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

Rear Camera 2 Resolution

8 MP
12 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 2 Lens

15.62 mm focal length, 4.0" sensor size
-

Rear Camera 3 Resolution

2 MP
5 MP

Rear Camera 3 Type

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

Rear Camera 3 Lens

21.88 mm focal length, 5.0" sensor size
-

Rear Camera 4 Resolution

2 MP
5 MP

Rear Camera 4 Type

f/2.4 Mono Camera
f/2.2, Depth Camera

Rear Camera 4 Lens

21.88 mm focal length, 5.0" sensor size
-

Rear Sensor

CMOS image sensor
ISO-CELL

Rear Aperture

f/1.8
f/2.0

OIS

-
No

Fingerprint Scanner

Yes
Yes

Fingerprint Scanner Position

Rear
On-Screen

Face Unlock

Yes
Yes

Fingerprint Scanner Type

-
Optical
Turn your old phone into cash

You May Also Read

Vivo Mobile Phones With 4000mAh Battery Price List
Upcoming Smartphone Launches
Samsung Mobile Phones With 4000mAh Battery Price List
Panasonic Mobile Price List
Gionee Mobile Price List

Recent News

Oppo K14 Launched In India With 7000mAh Battery & 50MP Camera At Budget Price
9th Mar 2026
OPPO Find N6 Launch In China And Specs Confirmed: See All Details
9th Mar 2026
OnePlus 15T Details Confirmed: Compact Design, 7500mAh Battery Teased Ahead Of China Launch
9th Mar 2026
Motorola Signature Discount Drops to Rs 53,970 And Massive Exchange Benefits
9th Mar 2026
Looking to Buy iPhone 17 Under 50000? Flipkart Has A Great Sale Offer For You
9th Mar 2026

Tips & Tricks

How To Transfer Airtel eSIM From One Phone To Another
2nd Mar 2026
Google Pixel 10a Best Camera Settings: All Pro Mode Explained
25th Feb 2026
Best Camera Settings For iPhone 15
24th Feb 2026
How To Delete Snap Story: Simple Step-by-Step Guide
18th Feb 2026
How To Delete Contact From WhatsApp: Quick & Easy Steps In 2026!
17th Feb 2026

Popular Leaks

Samsung Galaxy S26 Price Confirmed: No Increase In 2026
13th Jan 2026
Exclusive: Nothing Phone 4a Starts At Rs 31,999 – 50MP 3.5x Telephoto, Snapdragon 7s Gen 4
2nd Mar 2026
Honor Launches Robot Phone: The First Ever Phone With A Robotic Arm Is Here 
17th Oct 2025
Realme Big Announcements: 15T Launch And 15000mAh Battery Phone
29th Aug 2025
Nothing Phone 4a First Look Revealed: Here Is The Design
24th Feb 2026