Samsung Galaxy J7 (2017) vs Samsung Galaxy A20 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.5 inches
6.4 inches

Resolution:

1920 x 1080 pixels, 401 PPI
1560 x 720 pixels, 19.5:9 ratio, 268 PPI

Technology:

Super AMOLED
Super AMOLED

Refresh rate:

60Hz

Screen-to-body:

73.28 %
84.95 %

Features:

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Octa 7870 (14 nm)
Samsung Exynos 7884 (14 nm)

Processor:

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit

GPU:

Mali-T830 MP2
Mali-G71 MP2

RAM:

3GB LPDDR3
3GB LPDDR4

Internal storage:

16GB, available to use: 10 GB
32GB, available to use: 20.3 GB

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (9.0 Pie, 7.0 Nougat), Samsung One UI
Android (11, 10, 9.0 Pie), Samsung One UI

Battery

Capacity:

3600 mAh
4000 mAh

Type:

Not user replaceable
Not user replaceable

Charging:

Samsung Adaptive Fast Charging

Camera

Rear:

Single camera
Dual camera

Main camera:

13 MP (Autofocus)
13 MP (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 MP (Ultra-wide)

Specifications:

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

Front:

13 MP (Flash)
8 MP

Video capture:

1920x1080 (Full HD)

Design

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 (181.0 g)
5.96 oz (169.0 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

4G (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)

4G (TDD):

Bands 40(2300)

3G:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 5(850), 8(900)

Data Speed:

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

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.1
5.0

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)

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

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

Buyers information

Price:

$ 250

Availability

Officially announced:

Jun 06, 2017
FCC OKs Cingular\'s purchase of AT&T Wireless