Samsung Galaxy J4 vs Samsung Galaxy A20 Specs Comparison

Availability

Officially announced
May 22, 2018
Prices (MSRP)
	$250

Design

Dimensions
5.97 x 3.04 x 0.32 inches 151.7 x 77.2 x 8.1 mm	6.24 x 2.94 x 0.31 inches 158.4 x 74.7 x 7.8 mm
Weight
6.17 oz / 175.0 g	5.96 oz / 169.0 g
Materials
Back: Plastic	Back: Plastic
Biometrics
	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,Deep blue, Red

Display

Size
5.5-inch, 71.22% screen-to-body	6.4-inch, 84.95% screen-to-body
Type
Super AMOLED	Super AMOLED, 60Hz
Resolution
1280x720px, 16:9 ratio, 267 PPI	1560x720px, 19.5:9 ratio, 268 PPI
Colors
16 777 216

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	Samsung Exynos 7884 (14 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 1800 MHz ARM Cortex-A73 and ARM Cortex-A53
GPU
Mali-T720 MP1	Mali-G71 MP2
Memory
3GB/32GB 2GB/16GB	3GB (LPDDR4)/32GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (8.0 Oreo)	Android (11, 10, 9.0 Pie)

Battery

Type
3000 mAh	4000 mAh
Charging
	Samsung Adaptive Fast Charging

Camera

Rear
Single camera	Dual camera
Main camera
13 MP (PDAF) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/3.06" Pixel size: 1.12 μm	13 MP (Autofocus) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/3.1" Pixel size: 1.12 μm
Second camera
	5 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/5" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
1080p (30 fps) Video calling, Video sharing	1080p (30 fps)
Front
5 MP (Wide Angle, Flash)	8 MP

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
b,g,n Hotspot, Wi-Fi Direct 802.11 b, g, n	a,b,g,n,ac Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Other
VoIP, Tethering, Computer sync, OTA sync

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)
	Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20	2, 3, 4, 5, 7, 13, 20, 28, 66
4G (TDD) Bands
38, 40
3G Bands
5, 8, 1	1, 2, 5, 8
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSPA, HSUPA	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Micro SIM	Nano SIM

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording

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

Alternative variants

with 16 GB storage

Memory	2GB/16GB

for T-Mobile and Metro

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 66, 71
4G (TDD) Bands	38, 39, 40, 41
3G Bands	5, 8, 4, 2, 1

for Verizon, Sprint, Virgin Mobile and Boost Mobile

4G (FDD) Bands	2, 4, 5, 12, 13, 25, 26, 71
4G (TDD) Bands	41
3G Bands	5, 8, 4, 2, 1

for US Cellular

4G (FDD) Bands	2, 4, 5, 12, 13, 25, 66, 71
3G Bands	5, 8, 4, 2, 1

Links

Full specifications
Samsung Galaxy J4 Specs	Samsung Galaxy A20 Specs
User Reviews
	Samsung Galaxy A20 User Reviews