Samsung Galaxy J7 (2017) vs Samsung Galaxy A20

$178.99 VIEW ON AMAZON

Display

Display size

5.5 inches
6.4 inches

Resolution

1080 x 1920 pixels
720 x 1560 pixels

Aspect Ratio

 
19.5:9

Pixel density

401 ppi
268 ppi

Technology

Super AMOLED
Super AMOLED

Screen-to-body

73.28 %
84.95 %

Features

Ambient light sensor, Proximity sensor
Proximity sensor

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
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

Mali-T830 MP2
Mali-G71 MP2

RAM

3 GB LPDDR3
3 GB LPDDR4

Internal storage

16 GB
32 GB

Available to use

10 GB
20.3 GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

Device type

Smart phone
Smart phone

OS

Android (9.0 Pie, 7.0 Nougat), Samsung One UI
Android (9.0 Pie), Samsung One UI

Battery

Capacity

3600 mAh
4000 mAh

Type

Not user replaceable
Not user replaceable

Charging

 
Samsung Adaptive Fast Charging

Talk time (3G)

24.00 hours
the average is 23 h (1404 min)
 

Talk time (4G)

 
31 hours

Internet use

3G: 12 hours; LTE: 15 hours; Wi-Fi: 16 hours
3G: 12 hours; LTE: 13 hours; Wi-Fi: 13 hours

Music playback

59.00 hours
82.00 hours

Video playback

18.00 hours
21.00 hours

Camera

Rear

Single camera
Dual camera

Main camera

13 megapixels
13 megapixels

Features

Autofocus
Autofocus

Specifications

Aperture size: F1.7
Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm

Second camera

 
5 megapixels

Features

 
Ultra-wide

Specifications

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

Flash

LED
LED

Software Features

HDR, Panorama, Face detection, Burst mode, Exposure compensation, ISO control, White balance presets, Touch to focus, Self-timer, Digital zoom, Geo tagging
HDR, Panorama, Face detection, Effects, Exposure compensation, ISO control, White balance presets, Touch to focus, Self-timer, Digital zoom, Geo tagging

Video recording

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

Features

Video calling, Video sharing
 

Front

13 megapixels
8 megapixels

Features

Flash
 

Video capture

1920x1080 (Full HD)
 

Design

Form factor

Candybar
Candybar

Dimensions

6.00 x 2.94 x 0.31 inches (152.5 x 74.8 x 8 mm)
6.24 x 2.94 x 0.31 inches (158.4 x 74.7 x 7.8 mm)

Weight

6.38 oz (181 g)
the average is 6.1 oz (174 g)
5.96 oz (169 g)
the average is 6.1 oz (174 g)

Materials

Back: Aluminum
Back: Plastic

Biometrics

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

Features

Touch sensitive control keys
 

Keys

Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Black, Gold, Silver, Rose gold
Black,Deep blue, Red

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)

LTE (TDD)

Bands 40(2300)
 

UMTS

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

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz

CDMA

 
800, 1900 MHz

Data Speed

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

2G Data

EDGE, GPRS
EDGE, GPRS

SIM type

Nano SIM
Nano SIM

VoLTE

Yes
 

Global Roaming

Yes
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
 

Additional microphone(s)

 
for Noise cancellation

Connectivity & Features

Bluetooth

4.1
5.0

Profiles/ Protocols

Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Device ID Profile (DID), Handsfree (HFP), Headset (HSP), HID over GATT Profile (HOGP), Human Interface Device (HID), Message Access Profile (MAP), Object Push (OPP), Personal Area Networking Profile (PAN)
Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Handsfree (HFP), Headset (HSP), Message Access Profile (MAP), Object Push (OPP), Phone Book Access (PBAP)

Wi-Fi

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

USB

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

Features

Charging, OTG, Mass storage device
Charging

Location

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

Sensors

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

Mobile Payment

Samsung Pay
 

Other

NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
 

Regulatory Approval

FCC approval

 
 

Date approved

 
Jun 19, 2019

 
FCC ID value: A3LSMA205U link

Measured SAR

 
 

Head

 
1.09 W/kg

Body

 
0.60 W/kg

Simultaneous Transmission

 
1.37 W/kg

Wireless Router

 
1.00 W/kg

Phablet

 
3.94 W/kg

Shopping information

MSRP price

 
$ 250

Availability

Officially announced

Jun 06, 2017
 
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