Oppo A31 specification
Oppo A31 front and back
Oppo A31 color variants
Previous
Next

Release Date: 14 Feb, 2020

81% SPEC SCORE

$154


The Oppo A31 comes with Android 9, ensuring enhanced functionality and smooth multitasking. It features a big 6.5-inches HD+ display, perfect for both work and entertainment. With a Decent 4230 mAh battery life, you can stay powered throughout the day without frequent charging. Price starting at $154 this device is... Read More

Oppo A31 Key Features

feature logo

Display

6.5 inches (720x1600 pixels) HD

feature logo

Camera

12+2+2 MP (Triple Camera)

8 MP Selfie 1080P Video

feature logo

Hardware

MediaTek MT6765V/CB Helio P35 (12 nm)

feature logo

OS

Android 9

ColorOS 6.1

feature logo

Ram & Storage

4GB + 64GB

4GB + 128GB

feature logo

Battery

Li-Po 4230mAh

Data Updated on: 01 Apr, 2026

Oppo A31 Price and Full Specifications

feature logo

Display

Screen Size

6.5 inches, 102 cm² (~82.4% screen-to-body ratio)

Display Type

IPS LCD

Aspect Ratio

20:9

PPI

270 ppi

Protection

Corning Gorilla Glass 3

feature logo

Performance

Processor (SoC)

MediaTek MT6765V/CB Helio P35 (12 nm)

Fabrication process

12nm

CPU

PowerVR (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)

CPU cores

Octa-core

GPU

PowerVR GE8320

feature logo

Storage

Memory4GB + 64GB,
4GB + 128GB,
6GB + 128GB
Storage type

eMMC 5.1

feature logo

Camera

REAR CAMERA

Type

Triple camera

Primary

12 MP, (wide), 1.25µm, PDAF, (1/2.86")

Aperture size: f/1.8

Focal length: 1.25µm

Secondary

2 MP, (macro)

Aperture size: f/2.4

Tertiary

2 MP, (depth)

Aperture size: f/2.4

Features

LED flash, HDR, panorama

Video Recording

1080p @30fps

Autofocus

Yes

OIS

No

FRONT CAMERA

Primary

8 MP, (wide), 1.12µm

Aperture size: f/2.0

Focal length: 1.12µm

Features

HDR

Video Recording

1080p @30fps,

feature logo

Battery

Battery Capacity

4230mAh

Charging
feature logo

Sound

Loudspeaker

Yes

Sound Jack

3.5

feature logo

Software & OS

Operating System

Android 9

OS UI

ColorOS 6.1

feature logo

Design

Dimensions

163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in)

Weight

180g

Color Options

Fantasy White, Mystery Black, Lake Green

BuildGlass front (Gorilla Glass 3), plastic frame
plastic back
Sim Card Types

Dual SIM (Nano-SIM, dual stand-by)

feature logo

Network

Technology

GSM / HSPA / LTE

2G bands

GSM 850 / 900 / 1800 / 1900

3G bands

HSDPA 850 / 900 / 2100 / HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100

4G bands

1

3

5

7

8

20

28

38

40

41

1

2

3

4

5

7

8

28

38

41

66

1

3

5

8

38

40

41

1

3

5

7

8

38

40

41

Speed

HSPA / LTE

feature logo

Connectivity

WLAN

Wi-Fi 802.11 a/b/g/n/ac

Bluetooth

5.0, A2DP, LE

Positioning

GPS, GLONASS, BDS

NFC

No

Radio

Yes

Infrared-port

No

USB Version

microUSB 2.0

feature logo

Sensors & Features

Sensors

Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

feature logo

Additional Info

Models

CPH2015, CPH2073, CPH2081, CPH2029, CPH2031

Disclaimer: Information here may not be 100% accurate; please verify specs and prices on the retailer's website before buying. This page contains affiliate links. We may earn a commission if you make a purchase through them, at no extra cost to you. Thanks for your support!

Oppo A Series Devices

Oppo A31 Comparisons

compare Oppo A31 image

Oppo A31

$154

81% SPEC SCORE

display

6.5 inches (16.51 cm)

N/A

camera

12+2+2 MP (Triple)

8 MP (Single)

platform

MediaTek

MT6765V/CB Helio P35 (12 nm)

platformOS

Android 9

ColorOS 6.1

battery

4230 mAh

N/A

storage

4 GB RAM

64 GB Storage

Our Latest Blog

Oppo Find X9 Pro in for Review
Mobile Phones
Oppo Find X9 Pro in for Review

The Oppo Find X9 Pro packs a 200MP camera, huge 7,500mAh battery, and sleek design, a true flagship built for power, style, and endurance.

Oppo Series 15: Hands on review
Mobile Phones
Oppo Series 15: Hands on review

Oppo brings back the Reno series of smartphones with three variants of the Reno 15 series. Explore all speculated features before the highly anticipated launch in January 2026.

Oppo Reno15 Pro Mini Review
Mobile Phones
Oppo Reno15 Pro Mini Review

Read the detailed Oppo Reno15 Pro (Mini) review covering design, display, camera, battery, performance, price, and AI features. Discover why it’s one of the best compact flagship smartphones of 2026.

Xiaomi Watch 2 Pro vs. Oppo Watch 4 Pro: Smartwatch Showdown
Smartwatches
Xiaomi Watch 2 Pro vs. Oppo Watch 4 Pro: Smartwatch Showdown

Discover the ultimate smartwatch showdown with Xiaomi Watch 2 Pro vs. Oppo Watch 4 Pro. Explore unique features in this tech face-off for your perfect wrist companion.

Ultimate Camera Phone Comparison: Oppo vs Samsung vs Xiaomi vs Vivo vs Huawei
Mobile Phones
Ultimate Camera Phone Comparison: Oppo vs Samsung vs Xiaomi vs Vivo vs Huawei

Compare the best camera phones of 2026. Oppo, Samsung, Xiaomi, Vivo & Huawei battle it out for photography, video, AI features & performance.