Oppo A31 6.5″, 4GB RAM + 128GB (Dual SIM)

Oppo A31 features 4GB RAM, 128GB internal memory expandable up to 256GB, Dual SIM (nano+nano) dual-standby (4G+4G), ColorOS 6.1 operating system based on Android Pie v9.0 with 2.3GHz Mediatek P35 Octa-core processor, IMG GE8320 GPU. 4230 mAH lithium-polymer battery providing talk-time of 45 hours and standby time of 450 hours.

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.

A Camera for Every Occasion: 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.

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.

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.

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 hours, or play games for up to 7 hours worry-free.

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, Swipe-Up Gesture Navigation and even OPPO Cloud Service

Technical Specifications

• Color: Mystery Black, Fantasy White, Lake Green
• Operating System: ColorOS 6.1.2, based on Android 9
• CPU: MT6765V/CB
• GPU: IMG GE8320
• Battery Capacity: 4230mAh (Min/Typ)
• RAM: 4GB
• Storage: 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

Camera

• Rear Sensor: 12MP+2MP+2MP
• Front Sensor: 8MP
• Flash: LED Flash
• Aperture : Rear: f/1.8 + f/2.4+f/2.4
• Front: f/2.0
• Sensor Size:
  • Rear: Main 1/2.86′, 1.25um;
  • Front:1/4′, 1.12um
• Camera Mode:
  • Photo, video, professional mode, panorama, portrait, time-lapse photography
• Video:
  • The rear cameras and front camera support up to 1080P@30fps,720P@30fps.

Battery

• Non-removable Li-Po 4230 mAh battery
• Talk Time: Max GSM:45 hours; WCDMA:33hours
• Audio Playback: 35 hours
• Video Playback: 8 hours

Connectivity

• Frequencies:
• [Frequency 1]:
  • GSM: 850/900/1800/1900MHz
  • WCDMA: Bands 1/5/8
  • FDD-LTE: Bands 1/3/5/8
  • TD-LTE: Bands 38/40/41
• [Frequency 2]:
  • GSM: 850/900/1800/1900MHz
  • WCDMA: Bands 1/5/8
  • FDD-LTE: Bands 1/3/5/7/8
  • TD-LTE: Bands 38/40/41
• [Frequency 3]：
  • 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
  • Remarks: Bands 41 (2535-2655MHz)
• [Frequency 4]:
  • GSM: 900/1800MHz
  • WCDMA: 900/2100MHz
  • LTE FDD: Bands 1/3/5/8
  • LTE TDD: Band 40
• [Frequency 5]:
  • GSM: 850/900/1800/1900MHz
  • WCDMA: Bands 1/2/4/5/8
  • FDD-LTE: Bands 1/2/3/4/5/7/8/28/66
  • TD-LTE: Bands 38/41(2535-2655MHz)
• 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

Sensors

• Magnetic Induction Sensor
• Light Sensor
• Proximity Sensor
• G-Sensor/Acceleration Sensor
• Gyroscope
• Pedometer