|Display type||Super AMOLED capacitive touchscreen, 16M colors|
|Display Size||6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio)|
|Resolution||1080 x 2400 pixels, 20:9 ratio (~411 ppi density)|
|SIM||Dual SIM (Nano-SIM, dual stand-by)|
|OS||Android 10; One UI 2.0|
|Card slot||microSDXC (dedicated slot)|
|Internal||128GB 4GB RAM|
|Back Camera||48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF|
|Back camera 2||8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm|
|Back camera 3||5 MP, f/2.4, (macro)|
|Back camera 4||5 MP, f/2.4, (depth)|
|Features||LED flash, panorama, HDR|
|Selfie Camera||20 MP, f/2.2, (wide)|
|Sensors||Fingerprint (under display, optical), accelerometer, gyro, proximity, compass|
|Audio 3.5mm jack||Yes|
|WLAN||Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot|
|Bluetooth||5.0, A2DP, LE|
|NFC||Yes (market/region dependent)|
|Dimensions||159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)|
|Weight||185 g (6.53 oz)|
|Battery||Non-removable Li-Po 5000 mAh battery|
|Charging||Fast charging 15W|
|2G bands||GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)|
|3G bands||HSDPA 850 / 900 / 1900 / 2100|
|4G bands||LTE B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B20/B28/B38/B40/B41/B66|
See it all on a big, brilliant screen
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.
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.
Quad Cam lets you shoot with more perspective
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.
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.
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.
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.
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.
Power that keeps you going
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.
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.
Defense-grade security available to everyone
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.
Keep your device in tip top condition with us
Enjoy peace of mind when you choose to buy a galaxy smartphone. The Interactive diagnostics and optimization on Samsung Members app makes it easy to tune up the performance of your devices, while our helpline lets you troubleshoot problems when you need the extra assistance.