|Display type||IPS LCD capacitive touchscreen, 16M colors|
|Display Size||6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio)|
|Resolution||720 x 1600 pixels, 20:9 ratio (~270 ppi density)|
|SIM||Dual SIM (Nano-SIM, dual stand-by)|
|OS||Android 9.0 (Pie), ColorOS 6.1|
|Chipset||Mediatek MT6765V/CB Helio P35 (12nm)|
|Card slot||microSDXC (dedicated slot)|
|Internal||128GB 4GB RAM|
|Back Camera||12 MP, f/1.8, (wide), 1/2.86", 1.25µm, PDAF|
|Back camera 2||2 MP, f/2.4, (macro)|
|Back camera 3||2 MP, f/2.4, (depth)|
|Features||LED flash, HDR, panorama|
|Selfie Camera||8 MP, f/2.0, (wide), 1/4.0", 1.12µm|
|Sensors||Fingerprint (rear-mounted), 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|
|Dimensions||163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in)|
|Weight||180 g (6.35 oz)|
|Battery||Li-Po 4230 mAh, non-removable|
|2G bands||GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2|
|3G bands||HSDPA 850 / 900 / 2100|
|4G bands||1, 3, 5, 8, 38, 40, 41|
12MP Triple Rear Camera
OPPO A31’s three lenses inspire you to capture images in more ways than ever before. A 12MP main camera lets you focus clearly on the big picture, while a macro lens lets you zoom in on even the tiniest details. Plus, the depth camera helps create more stunning portraits.
With hardware level Portrait Bokeh effects, bring the subject of your photo quickly into focus with a blurred background effect. Plus, based on the analysis of hundreds of photos and user aesthetic taste trends, five new portrait styles let you play up your style.
The macro lens lets you capture the world around you in more detail. From morning dew to blooming flowers, OPPO A31 makes it easy to reveal the hidden gems of everyday life.
Dazzle Color Mode
OPPO A31’s pixel-mapping color algorithm helps bring out the color in photos. In Dazzle Color Mode, not only does flowers look more appealing through enhanced colors, but your world in photos are too more colorful than ever.
8MP Front AI Beautification Camera
Say hello to more natural, beautiful selfies. OPPO A31’s 8MP Front AI Beautification Camera automatically identifies age and gender to create more customized and natural selfies with more refined and beautiful skin.
6.5-inch Waterdrop Eye Protection Screen
The newly designed Nano-Waterdrop Notch of OPPO A31 is 31.4% smaller than before. The result is a larger screen that makes playing games and watching videos more immersive than ever. Plus, OPPO A31 filters out harmful blue light to prevent eye fatigue, protecting your vision for all-day enjoyment.
Thinner Curved Body
OPPO A31's 3D ergonomic body was designed for thinner visual appearance. With its one-handed grip, everything about it just feels right.
3-Card Slot (Dual Sim + MicroSD for up to 256GB Extra Memory)
OPPO A31 supports up to 256GB of additional memory into the three-card slot (Dual Sim + MicroSD). Feel free to take more photos, download more videos and save more music. With this much storage, entertainment has no limits.
Featuring a 2.3GHz Octa-Core Processor, OPPO A31 not only runs smoothly during games and video playback, but also requires lower power consumption.
Presenting an all-new UI design, ColorOS 6.1 offers intelligent, smooth navigation for a smoother experience. Based on Android 9.0, the infinite design now includes a Smart Riding Mode7, Smart Assistance, Swipe-Up Gesture Navigation and even OPPO Cloud Service.
With a big 4230mAh battery, watch videos, play games and listen to music all day long. You can watch HD videos online for up to 14 hours, or play games for up to 7 hours worry-free.