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Samsung Galaxy A31 vs Samsung Galaxy S9 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
Samsung Galaxy A31
9.0
Samsung Galaxy S9
Samsung Galaxy A31 Samsung Galaxy S9
Released · Apr 27, 2020
Released · Mar 16, 2018
6.4-inch
5.8-inch
Quad camera
Single camera
4GB · 64GB
4GB · 64GB
5000 mAh
3000 mAh
Check prices Check prices

Design

Dimensions
6.27 x 2.88 x 0.34 inches
159.3 x 73.1 x 8.6 mm 		5.81 x 2.70 x 0.33 inches
147.7 x 68.7 x 8.5 mm
Weight
6.53 oz (185.0 g) 5.75 oz (163.0 g)
Materials
Back: Plastic Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
Optical in-screen fingerprint Iris scanner, 2D Face unlock, Fingerprint (touch)
Features
Notification light
Keys
Right: Volume control, Lock/Unlock key Left: Volume control, Other; Right: Lock/Unlock key
Colors
Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue

Display

Size
6.4-inch 5.8-inch
Resolution
2400x1080px, 20:9 ratio, 411 PPI 2960x1440px, 18.5:9 ratio, 568 PPI
Technology
Super AMOLED Super AMOLED
Refresh rate
60Hz
Screen-to-body
84.88 % 84.36 %
Features
Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
MediaTek Helio P65 MT6768 (12 nm) Qualcomm Snapdragon 845 SDM845 (10 nm)
Processor
Octa-core
2x 2.0GHz Cortex-A75 + 6x 2.0GHz Cortex-A55 		Octa-core
2800 MHz
Kryo 385
GPU
Mali-G52 MC2 Adreno 630
RAM
4GB (LPDDR4) 4GB (LPDDR4)
Internal storage
64GB (eMMC 5.1), available to use: 46.2 GB 64GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 400 GB
OS
Android (10), Samsung One UI Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI

Battery

Capacity
5000 mAh 3000 mAh
Type
Li - Polymer Li - Ion
Charging
Fast charging Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Charge speed
Wired: 15.0W

Camera

Rear
Quad camera Single camera
Main camera
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm 		12 MP (OIS, PDAF)
Aperture size: F1.5/F2.4
Sensor size: 1/2.55"
Pixel size: 1.4 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) 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
Front
20 MP, Video capture: 1920x1080 (Full HD) 8 MP (Autofocus, HDR), Video capture: 2560x1440 (QHD) (30 fps)

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
MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 3.1
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Compass Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC NFC, ANT+

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
32-Bit DAC, aptX-HD
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), 20(800 DD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+) Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
3G
Bands 1(2100), 2(1900), 5(850), 8(900) Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
Dual SIM
Yes
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Mar 08, 2020
FCC ID value: A3LSMA315GL 		Date approved: Jan 11, 2018
FCC ID value: A3LSMG960U
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 		Head: 0.35 W/kg
Body: 0.96 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.95 W/kg

Buyers information

MSRP
€ 300 $ 720

Availability

Officially announced
Mar 24, 2020 Feb 25, 2018

Alternative variants

with 128GB storage
RAM 6GB
Internal storage 128GB
International version
System chip Samsung Exynos 9 9810 (10 nm)
Processor Octa-core
2900 MHz
Exynos M3 and ARM Cortex-A55
GPU Mali-G72 MP18
FCC approval Date approved: Dec 27, 2017
FCC ID value: A3LSMG960F
Measured SAR Head: 0.26 W/kg
Body: 1.00 W/kg
Simultaneous Transmission: 1.56 W/kg
Wireless Router: 1.04 W/kg
with Dual SIM
System chip Samsung Exynos 9 9810 (10 nm)
Processor Octa-core
2900 MHz
Exynos M3 and ARM Cortex-A55
GPU Mali-G72 MP18
Dual SIM Yes
with 256 GB storage
Internal storage 256GB
MSRP $ 820
with 128 GB storage
Internal storage 128GB
MSRP $ 770
FCC OKs Cingular\'s purchase of AT&T Wireless