Samsung Galaxy A31 vs Samsung Galaxy S9
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Display
Size
Resolution
Technology
Super AMOLED
Super AMOLED
Screen-to-body
84.88 %
84.36 %
Features
Ambient light sensor, Proximity sensor
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Hardware & Performance
System chip
MediaTek Helio P65 MT6768
Qualcomm Snapdragon 845 SDM845
Processor
GPU
Mali-G52 MC2
Adreno 630
RAM
Internal storage
64GB
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
Not user replaceable
Li - Ion, Not user replaceable
Charging
Fast charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Camera
Rear
Quad camera
Single camera
Main camera
Specifications
Aperture size: F2.0; Pixel size: 0.8 μm
Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Second camera
8 MP (Ultra-wide)
Specifications
Aperture size: F2.2
Third camera
5 MP (Macro)
Specifications
Aperture size: F2.4
Fourth camera
5 MP (Depth information)
Specifications
Aperture size: F2.4
Video recording
1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
Features
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
Front
20 MP
8 MP (Autofocus, HDR)
Design
Dimensions
Weight
the average is 6.4 oz (184 g)
the average is 6.4 oz (184 g)
Materials
Back: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Resistance
Water, Dust; IP 68
Biometrics
In-screen fingerprint
Iris scanner, 2D Face unlock, Fingerprint (touch)
Features
Notification light
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
Cellular
LTE (FDD)
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)
LTE (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
UMTS
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed
Dual SIM
Yes
SIM type
Nano SIM
Nano SIM
Multimedia
Headphones
3.5mm jack
Features
32-Bit DAC, aptX-HD
Connectivity & Features
Bluetooth
Yes
5.0
Wi-Fi
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 (reversible)
Type-C (reversible), USB 3.1
Features
Charging
Charging, OTG, Video out
Sensors
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, ANT+
Shopping information
MSRP
$ 720
