Manufacturer and Model

Manufacturer
Samsung
Samsung
Phone model
Galaxy A31 64Gb
Galaxy J7 SM-J700H/DS
Year of release
2020
2015

Appearance

Case type
Monoblock
Monoblock
Body length
159 mm
152 mm
Body width
73 mm
79 mm
Body thickness
8.6 mm
7.5 mm
Weight
185 g
171 g
Volume
100.15 cm³
89.84 cm³
Body materials and finishes
  • Plastic
  • Plastic
Colors

Processor (CPU)

Processor model
  • MediaTek Helio P65 MT6768
  • Samsung Exynos 7 Octa 7580
CPU clock speed
2000 MHz
1500 MHz
Number of processor cores
8
8

Graphics Processor (GPU)

GPU
GPU model
  • Mali-G52 MP6
  • ARM Mali-T720 MP2

Primary storage (RAM)

The amount of RAM
4 GB
1.5 GB

Internal storage

Built-in memory
  • 64 GB
  • 16 GB

SD card

Types of Supported Memory Cards
  • microSDXC
  • microSDHC
  • microSD
  • microSDXC
  • microSDHC
  • microSD
Maximum expandable memory
512 GB
128 GB
Hot swappable memory card

Operating system

Operating system
Android 10.0
Android 5.1

Battery

Battery capacity
5000
3000
Battery type
Li-Ion
Li-Ion
Removable battery
Charging the battery from USB
Call duration in GSM networks
18 h
Standby time in GSM networks
354 h
Call duration in UMTS (WCDMA) networks
18 h
Standby time on UMTS (WCDMA) networks
354 h
Duration of listening to music
76 h

Screen

Screen diagonal
6.4 in
5.5 in
Screen resolution
2400 x 1080 pixels
1280 x 720 pixels
Resolution formats
  • Full HD
  • HD
  • HD
Pixel density
411 ppi
267 ppi
Screen technology
Super AMOLED
Super AMOLED
Color depth
24 bit
24 bit
Touch screen
Touch screen type
Capacitive
Capacitive
Aspect ratio
2.222
1.778
Auto-rotate screen
Ambient light sensor
Proximity sensor

Main photo/video camera

Camera megapixels
48 Mp
13 Mp
Maximum photo resolution
9238 x 5196 pixels
4160 x 3120 pixels
Shooting resolution formats
  • Full Ultra HD
  • Ultra HD
  • Quad HD
  • Full HD
  • HD
  • Ultra HD
  • Quad HD
  • Full HD
  • HD
Dual camera
The presence of a flash
Flash type
LED
LED
Shooting settings
Autofocus
Auto exposure
Face detector
Viewfinder
Other photo settings
  • Serial shooting
  • Panoramic shooting
  • Hdr shooting
  • Face detection
  • Serial shooting
  • Panoramic shooting
  • Hdr shooting
  • Face detection
Video capability
Maximum video resolution
1920 x 1080 pixels
1920 x 1080 pixels
Movie speed
30 fps
30 fps
Movie settings
Movie settings list
  • White balance
  • Color effects
  • Scene selection mode
  • White balance
  • Color effects
  • Scene selection mode

Front photo/video camera

Front camera megapixels
20 Mp
5 Mp
Maximum photo resolution
5963 x 3354 pixels
2981 x 1677 pixels
Shooting resolution formats
  • Ultra HD
  • Quad HD
  • Full HD
  • HD
  • Quad HD
  • Full HD
  • HD
Front camera video

SIM card and calls

Number of SIM-cards
2
2
Mode of operation of multiple SIM-cards
Alternating
Alternating
SIM card type
Nano-SIM
Micro-SIM
MP3 ringtones
Polyphonic ringtones
Video ringtones
Vibration mode
Speakerphone
Conference call
Speed dial
Video calls
Ability to mute the microphone during a call
Extended phone book
Contacts in the phone book
Unlimited
Unlimited
Data exchange between SIM card and internal memory

Mobile communications

Cellular generation
4.5G
3.5G
GSM support
GSM frequencies
  • GSM 850 MHz
  • GSM 900 MHz
  • GSM 1800 MHz
  • GSM 1900 MHz
  • GSM 850 MHz
  • GSM 900 MHz
  • GSM 1800 MHz
  • GSM 1900 MHz
UMTS support
UMTS frequencies
  • UMTS 850 MHz
  • UMTS 900 MHz
  • UMTS 1900 MHz
  • UMTS 2100 MHz
  • UMTS 900 MHz
  • UMTS 2100 MHz
LTE support

Internet data transmission standards

Data transmission standards
  • HSPA+
  • HSUPA
  • HSDPA
  • EDGE
  • GPRS
  • HSPA+
  • HSUPA
  • HSDPA
  • EDGE
  • GPRS

Wi-Fi

Built-in Wi-Fi
Wi-Fi Direct support

USB

USB connector
USB connector type
USB Type-C
Micro USB
USB standard
3.0
2.0
USB OTG support
USB host support

Bluetooth

Built-in Bluetooth
Bluetooth standard
5.0
4.1
A2DP support
AVRCP support
Other Bluetooth profiles
  • DI
  • HFP
  • HID
  • HOGP
  • HSP
  • MAP
  • OPP
  • PAN
  • PBAP

Navigation and positioning

Built-in GPS
A-GPS support
Installed GLONASS
Built-in digital compass

Radio

Built-in radio receiver
Radio range
87.5 - 108 МГц
RDS support

Sensors and gauges

Ambient light sensor
Proximity sensor
Accelerometer
Orientation and rotation sensor
Magnetometer

Connectors and interfaces

USB connector
USB Type-C
Micro USB
TRS jack (mini/micro jack)
3.5 mm
3.5 mm
Wireless NFC
ANT+ wireless technology

Images

Supported image formats
  • PNG
  • JPEG
  • GIF
  • BMP
  • PNG
  • JPG
  • EXIF
  • GIF
Installed image editor
Geo tags

Video

Installed video player
Supported video formats
  • MP4
  • AVI
  • 3GPP
  • WMV
  • MP4
  • AVI
  • 3GPP
  • WMV
Video resolution formats
  • Full HD
  • HD
  • Full HD
  • HD
Streaming video
Geo tags

Audio

Installed audio player
Supported audio formats
  • AAC
  • MIDI
  • MP3
  • WMA
  • WAV
  • AAC
  • MIDI
  • MP3
  • WMA
  • WAV
MP3 support
Streaming audio
Dictaphone
Voice notes
TRS jack (mini/micro jack)
3.5 mm
3.5 mm

Control elements

Touch input
Multitouch
Pinch zoom
Russified input

Documents and office

Installed Organizer (PIM)
Office document support
Supported document formats
  • PDF
Email
IMAP4 protocol support
Convert speech to text

Connectivity and synchronization

PC connection
Synchronization over the mobile network
Synchronization with services
  • Gmail
  • Gtalk
  • Facebook
  • Twitter
  • Youtube
  • Google search
  • Google maps
  • Gmail
  • Gtalk
  • Facebook
  • Twitter
  • Youtube
  • Google search
  • Google maps

Software features

Installed browser
  • HTML
  • WAP
  • HTML
  • WAP

Receiving and sending SMS

SMS messages
SMS T9 support
SMS output in the form of a chat
MMS support

Security

Fingerprint scanner
Installed VPN

Additional features

Standalone mode (flight mode)