Samsung Galaxy J7 Duo vs Samsung Galaxy A20

$153.44 VIEW ON AMAZON

Display

Display size

5.5 inches
6.4 inches

Resolution

720 x 1280 pixels
720 x 1560 pixels

Pixel density

267 ppi
268 ppi

Technology

Super AMOLED
Super AMOLED

Screen-to-body ratio

70.40 %
84.95 %

Features

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

Camera

Rear

Dual camera
Dual camera

Main camera

13 megapixels
13 megapixels

Hardware Features

Phase detection autofocus
Autofocus

Specifications

Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm
Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm

Second camera

5 megapixels
5 megapixels

Hardware Features

Depth information
Ultra-wide

Specifications

Aperture size: F1.9; Focal Length: 24 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Flash

LED
LED

Video recording

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features

Video calling, Video sharing
Video calling, Video sharing

Front

8 megapixels
8 megapixels

Features

Flash
 

Design

Dimensions

6.04 x 3.04 x 0.32 inches (153.5 x 77.2 x 8.2 mm)
6.24 x 2.94 x 0.31 inches (158.4 x 74.7 x 7.8 mm)

Weight

6.14 oz (174 g)
the average is 6.1 oz (173 g)
5.96 oz (169 g)
the average is 6.1 oz (173 g)

Materials

Back: Plastic
Back: Plastic

Biometrics

2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Features

Touch sensitive control keys
 

Colors

Black, Gold
Black, Blue, Red

Multimedia

Headphones

3.5 mm jack
3.5 mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
Album art cover, Background playback

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
 

Additional microphone(s)

 
for Noise cancellation

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7884
Samsung Exynos 7884

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 1600 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm

GPU

ARM Mali-G71
Mali-G71 MP2

RAM

4 GB
3 GB

Internal storage

32 GB
32 GB

Available to use

21.8 GB
21.7 GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

OS

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

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

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

USB

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

Features

Mass storage device
Mass storage device

Location

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

Sensors

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

Other

VoIP, Tethering, Computer sync, OTA sync
VoIP, Tethering, Computer sync, OTA sync

Cellular

LTE (FDD)

Bands 1, 3, 5, 7, 8, 20
Bands 1, 3, 5, 7, 8, 20

LTE (TDD)

Bands 38, 40, 41
Bands 38, 40, 41

UMTS

850, 900, 1900, 2100 MHz
850, 900, 1900, 2100 MHz

Data

LTE, HSPA, HSUPA, UMTS
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Micro SIM
Nano SIM

Battery

Capacity

3000 mAh
4000 mAh

Type

User replaceable
Not user replaceable

Charging

 
Samsung Adaptive Fast Charging

Talk time (3G)

20.00 hours
the average is 23 h (1373 min)
26.00 hours
the average is 23 h (1373 min)

Internet use

3G: 11 hours; LTE: 13 hours; Wi-Fi: 13 hours
3G: 12 hours; LTE: 13 hours; Wi-Fi: 13 hours

Music playback

66.00 hours
82.00 hours

Video playback

17.00 hours
21.00 hours

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration
Haptic feedback, Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC measured SAR

 
 

Head

0.48 W/kg
 

Shopping information

In The Box

Charger, microUSB cable, Headset and Documentation
 

MSRP price

 
$ 250
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.