OPPO A31
WITH OPPO A31 AI Triple Camera, Capture Your Moment
6.5” (16.5cm) Waterdrop Screen1| 4230mAh Large Battery2
TRIPLE THE CAMERA
A Camera for Every Occasion
12MP Triple Rear Camera3
It’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.
Your Beauty in Focus
Portrait Bokeh
Oppo A31 comes 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.
Zoom into the World
Macro Lens
The macro lens lets you capture the world around you in more detail. From morning dew to blooming flowers, this makes it easy to reveal the hidden gems of everyday life.
Color up Your 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 is too more colorful than ever.
Beautiful Selfies
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.
TRIPLE THE EXPERIENCE
Immersive Viewing Experience 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.
(16.5 cm) 6.5’’ Nano-Waterdrop Screen
89% Screen-to-Body Ratio
3D Aesthetic Design
Mystery Black | Lake Green
OPPO A31 comes in two striking new colors inspired by nature. Lake Green from a vast shola and Mystery Black from moonless midnight. OPPO A31’s 3D Aesthetic Design will let you shine above the crowd.
Mystery Black 
Lake Green
Feel the Difference
Thinner Curved Body
OPPO A31’s 3D ergonomic body was designed for a thinner visual appearance. With its one-handed grip, everything about it just feels right.
8.3mm4 Thickness
180g4 Weight
20:9 Aspect Ratio
TRIPLE THE POWER
More Slots for More Storage
3-Card Slot (Dual Sim + MicroSD for up to 256GB Extra Memory)5
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.
All-Day Big Battery
4230mAh Battery
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 hours6, or play games for up to 7 hours6 worry-free.
Up to 14 Hours Video Streaming
Up to 7 Hours Online Gaming
Up to 111 Hours6 Audio Playback
Smooth Performance
Octa-Core Processor
Featuring a 2.3GHz Octa-Core Processor, OPPO A31 not only runs smoothly during games and video playback but also requires lower power consumption.
Looks as Smart as It Is
ColorOS 6.1
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, and Swipe-Up Gesture Navigation.
Smart Riding Mode
Smart Sidebar
Quality Guaranteed
Good Service
From pre-production R&D to after-sale customer service, it will always strive to serve you with the best products and support.
400,000+Global Retailers
9 Intelligent Global Manufacturing Hubs
6 Research Institutes
4 R&D Centers
Higher Quality through Higher Standards
Stress Tested
Every OPPO A31 smartphone undergoes rigorous testing before reaching you to ensure its quality meets not only our standards but also your every expectation
OPPO A31 SPECS
Dimension Image
Exterior
Dimensions/Weight
Height: 16.39cm / 163.9mm
Width: 7.55cm / 75.5mm
Thickness: 0.83cm / 8.3mm
Weight: About 180g
Basic Parameters
Color: Mystery Black, Lake Green
Operating System: ColorOS 6.1.2, based on Android 9
CPU: MT6765V/CB
GPU: IMG GE8320
Battery: 4100/4230mAh (Min/Typ)
RAM: 4GB
Storage: 64GB/ 128GB (Expandable up to 256GB)
Display
Size: 16.5cm (6.5”)
Touchscreen: Multi-touch, Capacitive Screen, Gorilla Glass 3
Resolution: 1600 by 720 pixels
Colors: 16 million colors
Screen Ratio: 89%
Contrast: 1500:1
Type: In-Cell
Brightness: Typical Value 480nit
Oppo A31 Camera
Rear Sensor: 12MP+2MP+2MP
Front Sensor: 208
Flash: LED Flash
Aperture: Rear: f/1.8 + f/2.4+f/2.4
Front: f/2.0
Front: f/2.0
Sensor Size:
Rear: Main 1/2.86′, 1.25um;
Front:1/4′, 1.12um
Rear: Main 1/2.86′, 1.25um;
Front:1/4′, 1.12um
Camera Mode:
Photo, video, professional mode, panorama, portrait, time-lapse photography
Photo, video, professional mode, panorama, portrait, time-lapse photography
Video:
The rear cameras and front camera support up to 1080P@30fps,720P@30fps.
The rear cameras and front camera support up to 1080P@30fps,720P@30fps.
Talk Time: Max GSM:45 hours; WCDMA:33hours
Audio Playback: 35 hours
Video Playback: 8 hours
Connectivity
Frequencies:
GSM:850/900/1800/1900MHz
WCDMA: Bands 1/5/8
FDD-LTE: Bands 1/3/5/7/8/20/28
TD-LTE: Bands 38/40/41
GSM:850/900/1800/1900MHz
WCDMA: Bands 1/5/8
FDD-LTE: Bands 1/3/5/7/8/20/28
TD-LTE: Bands 38/40/41
SIM Card Type: Dual Nano-SIM + MicroSD Card
GPS: Built-in GPS; supports A-GPS, Beidou, GLONASS
Bluetooth: 5.0
WLAN Function: 2.4/5GHz 802.11 a/b/g/n/ac
OTG: Supported
NFC: No
Oppo A31 Sensors
Magnetic Induction Sensor
Light Sensor
Proximity Sensor
G-Sensor/Acceleration Sensor
Gyroscope
Pedometer
Inside the Oppo A31 Box
Handset *1
Headset*1 (Only for Taiwan, Singapore, Middle East, and Africa 4GB+128GB, Mexico 4GB+64GB)
USB Cable *1
Adapter *1
SIM Card Pin*1
Protective Case *1
Quick Guide *1
Warranty Card *1
Product ID
Product ID: CPH2015/CPH2073/CPH2081/CPH2029/CPH2031
Additional Remarks
1. A special technology is applied to conceal the proximity sensor on the upper front of A31’s smartphone for the whole look of simplicity. It may cause an abnormality of proximity function if the film or protector covers the proximity sensor area.
