OPPO A31 128GB 4GB RAM, 4G LTE

Height: 16.39cm / 163.9mm

Width: 7.55cm / 75.5mm

Thickness: 0.83cm / 8.3mm

Weight: About 180g

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: 4100/4230mAh (Min/Typ)

RAM: 4GB/ 6GB

Storage: 64GB/ 128GB (Expandable up to 256GB)

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

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.

Talk Time: Max GSM:45 hours; WCDMA:33hours

Audio Playback: 35 hours

Video Playback: 8 hours

Frequencies:
Asia & Pacific Basic Model:
GSM: 850/900/1800/1900MHz
WCDMA: Bands 1/5/8
FDD-LTE: Bands 1/3/5/8
TD-LTE: Bands 38/40/41
Asia & Pacific Model:
GSM: 850/900/1800/1900MHz
WCDMA: Bands 1/5/8
FDD-LTE: Bands 1/3/5/7/8
TD-LTE: Bands 38/40/41
全频段版：
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)
Indonesia Model:
GSM: 900/1800MHz
WCDMA: 900/2100MHz
LTE FDD: Bands 1/3/5/8
LTE TDD: Band 40
South America Model:
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

Magnetic Induction Sensor

Light Sensor

Proximity Sensor

G-Sensor/Acceleration Sensor

Gyroscope

Pedometer