Samsung Galaxy M31
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Top specifications
SIM type
Dual SIM
2x Physical nano-SIM card
2x Physical nano-SIM card
Internal device memory
64/128GB
Max external memory (microSD)
512GB
Main camera (max MP)
64
Charge rate
15W
Device warranty
24 months
Battery
Talk time (hrs)
4G LTE: Up to 48 hours
Battery life
Internet Usage Time: Up to 21 hours
Video Playback Time: Up to 26 hours
Audio Playback Time: Up to 119 hours
Video Playback Time: Up to 26 hours
Audio Playback Time: Up to 119 hours
Removable battery
No
Charge rate
15W
Fast charge
Yes - 15W
Power saving
Power saving mode
Battery capacity
6000mAh
Body
Height (mm)
159.2
Width (mm)
75.1
Depth (mm)
8.9
Weight (g)
191
SIM type
Dual SIM
2x Physical nano-SIM card
2x Physical nano-SIM card
Connectivity
Wi-Fi Direct
Yes
Personal hotspot
Yes
USB type
Type-C
Location services
Glonass
Beidou
Galileo
Beidou
Galileo
Near Field Communication (NFC)
Yes
Bluetooth
Yes - 5
USB
Yes
Wi-Fi (WLAN)
Yes - 802.11 a/b/g/n/ac
PC Sync
Smart Switch (PC version)
Smartwatch compatible
Yes:
Galaxy Fit
Galaxy Fit e
Galaxy Watch
Galaxy Watch Active
Galaxy Watch Active2
Gear Fit
Gear Fit2
Gear Fit2 Pro
Gear Sport
Gear1
Gear2
Gear2 Neo
Gear S
Gear S2
Gear S3
Gear IconX
Gear IconX (2018)
Galaxy Fit
Galaxy Fit e
Galaxy Watch
Galaxy Watch Active
Galaxy Watch Active2
Gear Fit
Gear Fit2
Gear Fit2 Pro
Gear Sport
Gear1
Gear2
Gear2 Neo
Gear S
Gear S2
Gear S3
Gear IconX
Gear IconX (2018)
MHL
No
Samsung DeX
No
Processor
CPU Brand
Octa-Core
CPU speed
Up to 2.3GHz
Display
Resolution
2340x1080
Pixels
404 ppi
Colours
16 million
Touch screen
Yes
Size (inches)
6.4
Display type
Super AMOLED
FHD+
FHD+
Messaging
Email
Yes
Text messages
Yes
IM
Yes
Network
VoLTE (4G calling in UK)
Yes
3G
Yes
4G
Yes
Platform
Operating system
Android
Sensors
Proximity sensor
Yes - virtual
Gyroscope
Yes
Accelerometer
Yes
Ambient light sensor
Yes
Geomagnetic sensor
Yes
Memory
RAM
6/8GB
Device memory
64/128GB
Card slot
microSD
Card max size
512GB
Camera
HD video recording
Yes
Slow motion
Yes - 240fps @HD
Secondary camera
Front-facing
Primary camera
Quad rear-facing
Resolution (max. mp)
64
No. of cameras
4
Front camera
No. of cameras
1
Resolution (max MP)
32
HD video recording
UHD 4K - up to 30fps
Camera type
Front camera
Autofocus
No
Aperture
f/2.0
Rear camera
Resolution (max MP)
Main camera: 64
Depth camera: 5
Ultra-Wide camera: 8
Macro camera: 5
Depth camera: 5
Ultra-Wide camera: 8
Macro camera: 5
No. of cameras
4
Camera type
Main camera
Depth camera
Ultra-Wide camera
Macro camera
Depth camera
Ultra-Wide camera
Macro camera
Autofocus
Yes
Aperture
Main camera: f/1.8
Depth camera: f/2.2
Ultra-Wide camera: f/2.2
Macro camera: f/2.4
Depth camera: f/2.2
Ultra-Wide camera: f/2.2
Macro camera: f/2.4
Flash
Yes
HD video recording
UHD 4K @30fps
3840x2160
3840x2160
Optical Image Stabilization (OIS)
No
Zoom
Digital Zoom up to 8x
Additional features
Live focus mode
Super Slow-mo mode
Hyperlapse mode
Pro mode
Panorama mode
Macro mode
Food mode
Night mode
Super Slow-mo mode
Hyperlapse mode
Pro mode
Panorama mode
Macro mode
Food mode
Night mode
Features
Voice recording
Yes
Video player
Yes
Loudspeaker
Yes
Video calling
Yes - app required
3.5mm headphone jack
Yes
Music player
Yes - app required
Web browser
Yes
Special features
Game Booster
Special features
Game Booster
S Pen support
No
Security
Facial recognition
Yes
Fingerprint sensor
Yes - rear-mounted
Warranty
Device warranty
24 months
Compatibility
Compatibility
Galaxy Buds
Formats
Video formats
MP4, M4V
3GP, 3G2
WMV
ASF, AVI
FLV
MKV
WEBM
3GP, 3G2
WMV
ASF, AVI
FLV
MKV
WEBM
Audio Formats
MP3, M4A
3GA
AAC
OGG, OGA
WAV, WMA
AMR, AWB
FLAC
MID, MIDI
XMF, MXMF
IMY
RTTTL, RTX
OTA
3GA
AAC
OGG, OGA
WAV, WMA
AMR, AWB
FLAC
MID, MIDI
XMF, MXMF
IMY
RTTTL, RTX
OTA
Key Information
SIM slot type
Nano and microSD
SIM functionality
Dual SIM
Virtual assistant
Bixby
Yes
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