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Samsung Galaxy A8 (2018) 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.

Comparison mode:
Specs Size
Differences only
6.5
Samsung Galaxy A8 (2018)
Samsung Galaxy A31
Samsung Galaxy A8 (2018) Samsung Galaxy A31
Released · Jan 06, 2018
Released · Apr 27, 2020
5.6-inch
6.4-inch
Single camera
Quad camera
4GB · 64GB
4GB · 64GB
3000 mAh
5000 mAh

Design

Dimensions
5.87 x 2.78 x 0.33 inches
149.2 x 70.6 x 8.4 mm 		6.27 x 2.88 x 0.34 inches
159.3 x 73.1 x 8.6 mm
Weight
6.07 oz (172.0 g) 6.53 oz (185.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum 		Back: Plastic
Resistance
Water, Dust; IP68
Biometrics
Fingerprint (touch) Optical in-screen fingerprint
Features
Notification light
Keys
Left: Volume control; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Orchid grey, Blue Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Display

Size
5.6-inch 6.4-inch
Resolution
2220x1080px, 18.5:9 ratio, 441 PPI 2400x1080px, 20:9 ratio, 411 PPI
Technology
Super AMOLED Super AMOLED
Refresh rate
60Hz
Screen-to-body
75.60 % 84.88 %
Features
Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 5 Octa 7885 (14 nm) MediaTek Helio P65 MT6768 (12 nm)
Processor
Octa-core
2200 MHz
ARM Cortex-A73 and ARM Cortex-A53 		Octa-core
2x 2.0GHz Cortex-A75 + 6x 2.0GHz Cortex-A55
GPU
Mali-G71 Mali-G52 MC2
RAM
4GB (LPDDR4) 4GB (LPDDR4)
Internal storage
64GB 64GB (eMMC 5.1), available to use: 46.2 GB
Storage expansion
microSDXC up to 256 GB microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.1 Nougat), Samsung One UI Android (10), Samsung One UI

Battery

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

Camera

Rear
Single camera Quad camera
Main camera
16 MP (PDAF)
Aperture size: F1.7 		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
1920x1080 (Full HD) (30 fps)
Hyperlapse, EIS, Video calling, Video sharing 		1920x1080 (Full HD) (30 fps)
Front
16 MP (Dual-Camera), Video capture: 1920x1080 (Full HD) 20 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot 		802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, BeiDou GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer Accelerometer, Gyroscope, Compass
Other
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync NFC

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 Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+) Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSPA, HSUPA LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Nov 14, 2017
FCC ID value: A3LSMA530F 		Date approved: Mar 08, 2020
FCC ID value: A3LSMA315GL
Measured SAR
Head: 0.26 W/kg
Body: 0.76 W/kg
Simultaneous Transmission: 1.54 W/kg
Wireless Router: 0.98 W/kg 		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

Buyers information

MSRP
€ 300

Availability

Officially announced
Dec 19, 2017 Mar 24, 2020

Alternative variants

with 32 GB storage
Internal storage 32GB, available to use: 22.7 GB
MSRP € 500
with 128GB storage
RAM 6GB
Internal storage 128GB
FCC OKs Cingular\'s purchase of AT&T Wireless