Samsung Galaxy A7 (2018) vs Samsung Galaxy A51

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$692 VIEW ON AMAZON
$319 VIEW ON AMAZON

Display

Size

6.0 inches
6.5 inches

Resolution

2220 x 1080 pixels, 18.5:9 ratio,
411 PPI
2400 x 1080 pixels, 20:9 ratio,
405 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

74.55 %
87.37 %

Features

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip

Samsung Exynos 7 Octa 7885
Samsung Exynos 9611

Processor

Octa-core, 2200 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU

Mali-G71 MP2
Mali-G72 MP3

RAM

6GB LPDDR4
4GB LPDDR4

Internal storage

128GB
128GB, available to use: 105.9 GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 512 GB

OS

Android (9.0 Pie, 8.0 Oreo), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

3300 mAh
4000 mAh

Type

Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

 

Charging

 
Fast charging

Camera

Rear

Triple camera
Quad camera

Main camera

24 MP (PDAF, CMOS image sensor)
48 MP (PDAF)

Specifications

Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.8"; Pixel size: 0.9 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

8 MP (Ultra-wide, Autofocus, CMOS image sensor, BSI sensor)
12 MP (Ultra-wide)

Specifications

Aperture size: F2.4; Focal Length: 18 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera

5 MP (Depth information)
5 MP (Macro)

Specifications

Aperture size: F2.2; Focal Length: 24 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4; Focal Length: 40 mm

Fourth camera

 
5 MP (Depth information)

Specifications

 
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Video recording

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features

Hyperlapse, EIS, Video calling, Video sharing
Hyperlapse, EIS

Front

24 MP (Flash)
32 MP (HDR)

Design

Dimensions

6.29 x 3.02 x 0.30 inches (159.8 x 76.8 x 7.5 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight

5.93 oz (168.0 g)
the average is 6.2 oz (176 g)
6.07 oz (172.0 g)
the average is 6.2 oz (176 g)

Materials

Back: Glass (Corning Gorilla Glass 3); Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics

Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Features

Notification light
 

Colors

Black, Gold, Pink, Blue
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)

UMTS

850, 900, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type

Nano SIM
Nano SIM

VoLTE

Yes
 

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback, Dolby Atmos
Dolby Atmos

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Additional microphone(s)

 
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features

Mass storage device, Charging
Charging, OTG

Location

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other

NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration
 

Other features

Voice dialing, Voice commands, Voice recording
 

Regulatory Approval

FCC approval

 
 

Date approved

Sep 13, 2018
Nov 28, 2019

FCC ID value: A3LSMA750FN link
FCC ID value: A3LSMA515FN link

Measured SAR

 
 

Head

0.50 W/kg
0.89 W/kg

Body

0.39 W/kg
1.18 W/kg

Simultaneous Transmission

1.59 W/kg
1.56 W/kg

Wireless Router

1.05 W/kg
1.12 W/kg

Phablet

 
2.76 W/kg

Buyers information

In The Box

Charger, microUSB cable, Headphones, SIM Removal Tool, Documentation
 

Price

 
$ 400
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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