Samsung Galaxy J4 vs Samsung Galaxy A31 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.


Samsung Galaxy J4	Samsung Galaxy A31
Released · May 22, 2018	Released · Apr 27, 2020
5.5-inch · 1280x720px	6.4-inch · 2400x1080px
Single camera	Quad camera
3GB · 32GB	4GB · 64GB
3000 mAh	5000 mAh
	Check prices

Availability

Officially announced
May 22, 2018	Mar 24, 2020
Prices (MSRP)
	€300

Design

Dimensions
5.97 x 3.04 x 0.32 inches 151.7 x 77.2 x 8.1 mm	6.27 x 2.88 x 0.34 inches 159.3 x 73.1 x 8.6 mm
Weight
6.17 oz / 175.0 g	6.53 oz / 185.0 g
Materials
Back: Plastic	Back: Plastic
Biometrics
	Optical in-screen fingerprint
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
	Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Display

Size
5.5-inch, 71.22% screen-to-body	6.4-inch, 84.88% screen-to-body
Type
Super AMOLED	Super AMOLED, 60Hz
Resolution
1280x720px, 16:9 ratio, 267 PPI	2400x1080px, 20:9 ratio, 411 PPI
Colors
16 777 216

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	MediaTek Helio P65 MT6768 (12 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 2x2.0GHz Cortex-A75 6x2.0GHz Cortex-A55
GPU
Mali-T720 MP1	Mali-G52 MC2
Memory
3GB/32GB 2GB/16GB	4GB (LPDDR4)/64GB (eMMC 5.1) 6GB/128GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (8.0 Oreo)	Android (10)

Battery

Type
3000 mAh	5000 mAh, Li - Polymer
Charging
	Fast charging
Charge speed
	Wired: 15.0W

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (PDAF) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/3.06" Pixel size: 1.12 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	5 MP (Macro) Aperture size: F2.4
Fourth camera
	5 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
1080p (30 fps) Video calling, Video sharing	1080p (30 fps)
Front
5 MP (Wide Angle, Flash)	20 MP Video capture: 1080p

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,dual-band 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, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
VoIP, Tethering, Computer sync, OTA sync	NFC

Discover more

Full Specs
Samsung Galaxy J4 Specs

Full Specs
Samsung Galaxy A31 Specs

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)
	Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 20
4G (TDD) Bands
38, 40	38, 40, 41
3G Bands
5, 8, 1	1, 2, 5, 8
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	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: Mar 08, 2020 FCC ID value: A3LSMA315GL
Measured SAR
	Head: 0.53 W/kg Body: 0.56 W/kg Simultaneous Transmission: 1.42 W/kg Wireless Router: 0.65 W/kg Phablet: 0.89 W/kg

Alternative variants

with 16 GB storage


Memory	2GB/16GB

with 128GB storage


Memory	6GB/128GB