Samsung Galaxy A7 (2018) vs Samsung Galaxy A31 Specs Comparison

Design

Dimensions
6.29 x 3.02 x 0.30 inches 159.8 x 76.8 x 7.5 mm	6.27 x 2.88 x 0.34 inches 159.3 x 73.1 x 8.6 mm
Weight
5.93 oz (168.0 g)	6.53 oz (185.0 g)
Materials
Back: Glass (Corning Gorilla Glass 3) Frame: Plastic	Back: Plastic
Biometrics
Fingerprint (touch)	Optical in-screen fingerprint
Features
Notification light
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Pink, Blue	Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Display

Size
6.0-inch	6.4-inch
Resolution
2220x1080px, 18.5:9 ratio, 411 PPI	2400x1080px, 20:9 ratio, 411 PPI
Technology
Super AMOLED	Super AMOLED
Refresh rate
	60Hz
Screen-to-body
74.55 %	84.88 %
Colors
16 777 216
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 7 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 MP2	Mali-G52 MC2
RAM
6GB (LPDDR4)	4GB (LPDDR4)
Internal storage
128GB	64GB (eMMC 5.1), available to use: 46.2 GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo), Samsung One UI	Android (10), Samsung One UI

Battery

Capacity
3300 mAh	5000 mAh
Type
	Li - Polymer
Charging
	Fast charging
Charge speed
	Wired: 15.0W

Camera

Rear
Triple camera	Quad camera
Main camera
24 MP (PDAF, CMOS image sensor) Aperture size: F1.7 Focal length: 26 mm Sensor size: 1/2.8" Pixel size: 0.9 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, Autofocus, CMOS image sensor, BSI sensor) Aperture size: F2.4 Focal Length: 18 mm Sensor size: 1/4" Pixel size: 1.12 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
5 MP (Depth information) Aperture size: F2.2 Focal Length: 24 mm Sensor size: 1/5" Pixel size: 1.12 μm	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
24 MP (Flash), 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 Hotspot, Wi-Fi Direct	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
microUSB, 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)	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, Dolby Atmos
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 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), 20(800 DD)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM
VoLTE
Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Sep 13, 2018 FCC ID value: A3LSMA750FN	Date approved: Mar 08, 2020 FCC ID value: A3LSMA315GL
Measured SAR
Head: 0.50 W/kg Body: 0.39 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.05 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
In The Box
Charger, microUSB cable, Headphones, SIM Removal Tool, Documentation

Availability

Officially announced
Sep 20, 2018	Mar 24, 2020

Alternative variants

with 4 GB RAM

RAM	4GB

with 128GB storage

RAM	6GB
Internal storage	128GB

with 64 GB storage

RAM	4GB
Internal storage	64GB

Dual SIM support

Dual SIM	Yes

Links

Full specifications
Samsung Galaxy A7 (2018) Specs	Samsung Galaxy A31 Specs
PhoneArena Review
Samsung Galaxy A7 (2018) Review