Highlights
Features
Awesome screen built for cinema
Immerse yourself in the large 6.4-inch Infinity-U Display of Galaxy A31. A wide aspect ratio fills your screen with content from edge to edge. Watch your favorite videos, games and live streams in vivid FHD+ Super AMOLED.
* Images simulated for illustrative purposes.
** Infinity Display: a near bezel-less, full-frontal glass, edge-to-edge screen.
*** Measured diagonally, the screen size is 6.4" in the full rectangle and 6.2" with accounting for the rounded corners. Actual viewable area is less due to the rounded corners and the camera cutout.
Slim on the outside, big on the inside
Everything you want in a phone in a slim body. Housing a large 5,000mAh(typical) battery in the 8.6 mm-thick device, Galaxy A31 fits right in your hand and comes in a geometric design with a glossy finish. Choose from Prism Crush Black, Prism Crush White, Prism Crush Blue, or Prism Crush Red.
* Color availability may vary by country or carrier.
** Typical value tested under third-party laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. Rated (minimum) capacity is 4,860mAh. Actual battery life may vary depending on network environment, usage patterns and other factors.
Awesome Quad camera to capture more
Go ultra high-res with a 48MP Main Cam for crisp, clear photos day and night. A 123° 8MP Ultra Wide Cam captures more of the view. Choose the upgraded 5MP Macro Cam for highly refined close-ups, and make sure the subject always stands out with the 5MP Depth Camera’s multiple Live Focus effects.
*Color availability may vary by country or carrier.
*Color availability may vary by country or carrier.
Capture more of view from the same spot
Capture the wider world with the Ultra Wide Camera's wider field of vision. And with the 48MP Main Camera, your story stays bright and clear throughout the day.
Wide angle
Wide angle
** Ultra wide experience (photo/video) is supported for rear camera only.
Ultra wide angle
Ultra wide angle
** Ultra wide experience (photo/video) is supported for rear camera only.
Macro Cam that captures the up-close details
Quad Cam’s built-in 5MP Macro Cam (40mm) shoots with clarity and quality helping you bring out the ultra-fine details of your close-up shots. Apply natural background blur (Bokeh) to isolate your subject and make it stand out.
* Images simulated for illustrative purposes.
** Macro Camera feature supported for rear camera only.
* Images simulated for illustrative purposes.
** Macro Camera feature supported for rear camera only.
Depth Camera brings your subject into the spotlight
The 5MP Depth Camera lets you adjust the depth of field before and after you nail the shot. It reduces unwanted background noise from your images to make them look more professional.
Live Focus On
Live Focus On
Live Focus Off
Live Focus Off
Attention-grabbing selfies made easy
You want your selfie to look good. So for stunning daytime looks, Galaxy A31's 20MP front camera gives you clear, high-resolution photos. And with Live focus to gently blur the background, your face becomes the star.
*Images simulated for illustrative purposes.
*Images simulated for illustrative purposes.
Awesome battery, the marathon champ
When out living life, you need a phone that can last. A 5,000mAh (typical)* battery gives you the power to stream, share and game on. And if you start running low, plug in and power up with 15W Fast Charging.
*Typical value tested under third-party laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. Rated (minimum) capacity is 4,860 mAh. Actual battery life may vary depending on network environment, usage patterns and other factors.
Give yourself more room to play
Galaxy A31 has fast processing and spacious storage so you can focus on now. An advanced Octa-core processor and 4/6GB of RAM deliver smooth and efficient performance. Download more and delete less with 64GB/128GB internal storage. Add even more with a 512GB microSD card.
* RAM and internal memory capacity may vary by country.
** MicroSD card sold separately.
*** Actual storage available may vary depending on pre-installed software.
Game Booster gives you the edge
Maximize performance with Game Booster. Cut distractions and up your game with a dedicated interface and easy-to-reach menu. Frame Booster gives graphics smooth, life-like motion. And play at your best as Game Booster learns your usage patterns to optimize battery, temperature and memory.
*Device and screen images simulated for illustrative purposes.
Defense-grade security. Protect what matters to you.
Built into the phone's hardware and software from the start, Samsung Knox protects your phone from the minute it's turned on. Offering multi-layered security, it defends your most sensitive information from malware and malicious threats.
Your fingerprint is the key
Galaxy A31 comes with high-tech biometric authentication. The On-Screen Fingerprint scanner recognizes your unique fingerprint, so you are the only one who can press and unlock in one easy move.
*If you use a screen protector, make sure it allows for use of the On-screen fingerprint sensor.
Check out the new Galaxy A series to find the one for you
Introducing a series of phones that enables today’s generation to do what others can’t. Meet the new Galaxy A. Built for the Era of Live.
Upgrade your Galaxy J now with our new Galaxy A smartphones
We took what you love about J to create a better lineup– the new Galaxy A. See how J has been upgraded into the Era of Live.
Specifications
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CPU Speed
2GHz, 1.7GHz
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Weight (g)
185
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Audio Playback Time (Hours)
Up to 97
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Rear Camera - Resolution (Multiple)
48.0 MP + 5.0 MP + 8.0 MP + 5.0 MP
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CPU Speed
2GHz, 1.7GHz
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CPU Type
Octa-Core
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Size (Main_Display)
162.1mm (6.4")
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Resolution (Main Display)
1080 x 2400 (FHD+)
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Technology (Main Display)
Super AMOLED
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Color Depth (Main Display)
16M
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Rear Camera - Resolution (Multiple)
48.0 MP + 5.0 MP + 8.0 MP + 5.0 MP
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Rear Camera - F Number (Multiple)
F2.0 , F2.4 , F2.2 , F2.4
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Main Camera - Auto Focus
Yes
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Rear Camera - OIS
No
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Rear Camera Zoom
Digital Zoom up to 8x
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Front Camera - Resolution
20.0 MP
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Front Camera - F Number
F2.2
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Front Camera - Auto Focus
No
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Front Camera - OIS
No
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Main Camera - Flash
Yes
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Front Camera - Flash
No
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Video Recording Resolution
FHD (1920 x 1080) @30fps
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Memory_(GB)
4
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Storage (GB)
128
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Available Storage (GB)
101.0
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External Storage Support
MicroSD (Up to 512GB)
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Number of SIM
Dual-SIM
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SIM size
Nano-SIM (4FF)
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SIM Slot Type
SIM 1 + SIM 2 + MicroSD
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Infra
2G GSM, 3G WCDMA, 4G LTE FDD, 4G LTE TDD
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2G GSM
GSM850, GSM900, DCS1800, PCS1900
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3G UMTS
B1(2100), B2(1900), B5(850), B8(900)
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4G FDD LTE
B1(2100), B2(1900), B3(1800), B5(850), B7(2600), B8(900), B20(800)
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4G TDD LTE
B38(2600), B40(2300), B41(2500)
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ANT+
No
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USB Interface
USB Type-C
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USB Version
USB 2.0
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Location Technology
GPS, Glonass, Beidou, Galileo
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Earjack
3.5mm Stereo
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MHL
No
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Wi-Fi
802.11 a/b/g/n/ac 2.4+5GHz
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Wi-Fi Direct
Yes
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Bluetooth Version
Bluetooth v5.0
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NFC
Yes
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PC Sync.
Smart Switch (PC version)
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Android
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Form Factor
Touch Bar
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Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity Sensing
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Dimension (HxWxD, mm)
159.3 x 73.1 x 8.6
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Weight (g)
185
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Internet Usage Time(LTE) (Hours)
Up to 20
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Internet Usage Time(Wi-Fi) (Hours)
Up to 20
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Video Playback Time (Hours)
Up to 22
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Battery Capacity (mAh, Typical)
5000
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Removable
No
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Audio Playback Time (Hours)
Up to 97
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Talk Time (4G LTE) (Hours)
Up to 33
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Stereo Support
No
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Video Playing Format
MP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM
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Video Playing Resolution
FHD (1920 x 1080)@60fps
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Audio Playing Format
MP3, M4A, 3GA, AAC, OGG, OGA, WAV, WMA, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA
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Gear Support
Galaxy Buds+, Galaxy Buds, 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)
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Samsung DeX Support
No
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Mobile TV
No
User manual & downloads
FAQs
- How to fast charge on your galaxy device?
- What to do if my galaxy buds does not connect properly?
- How to pair and switch devices that is connected to the galaxy buds?
- What do I do when the location information is inaccurate on my Samsung smartphone?
- How to transfer data from an iPhone or iPad to a new Galaxy device with Smart Switch
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