Oppo

Oppo A91 (2019) review

Android OS v9.0 (Pie)
Mediatek Helio P70
Mali-G72 MP4
6 GB / 128 GB
6.4 inches (1080 x 2400 px)
48 + 8 + 2 + 2 MP, 8000 x 6000 px, autofocus

Oppo announced the launch of the A91 smartphone in 2019. The manufacturer is offering the Oppo A91 phone with 6.4 inches display, Mediatek Helio P70 chipset, 6 GB of RAM and 128 GB of internal storage.

The Oppo A91 comes with Android OS v9.0 (Pie) out of the box, and a Li-Po 4025 mAh, non-removable battery. The 6.4 inches phone comes with a high resolution AMOLED display (1080 x 2400 px).

Oppo A91 specifications

BrandOppo
NameA91
ModelA91
Release date2019

Body

The weight of Oppo A91 is about 6.07 oz with battery, which is average compared to most of the smartphones with same size. The dimensions of this Oppo phone are average (6.31 x 2.89 x 0.31 inches).

Weight6.07 oz
Dimensions6.31 x 2.89 x 0.31 inches
Colorsblue, red, white
SIM typeNano SIM

System

The Oppo A91 comes with Android OS v9.0 (Pie) out of the box, but it is upgradable to the next OS. Android is a mobile operating system developed by Google based on a modified version of the Linux kernel and other open-source software.

OS versionAndroid OS v9.0 (Pie)
SoCMediatek Helio P70
CPUOcta-core, Quad-core 2.1 GHz Cortex-A73, Quad-core 2 GHz Cortex-A53
GPUMali-G72 MP4

Display

The size of A91 screen is measured diagonally, from corner to corner. The 6.4 inches phone comes with AMOLED display. The AMOLED is a display technology and stands for Active Matrix Organic Light Emitting Diodes, it is a type of OLED display and is used in smartphones. The 6.4 inches AMOLED display of Oppo A91 with 1080 x 2400 px resolution is multitouch capable.

Display typeAMOLED
Screen size6.4 inches
Resolution1080 x 2400 px
Multitouch supportyes

Memory

The internal memory of Oppo A91 (6 GB) cannot be expanded, but the internal storage (128 GB) can be expanded with a compatible microSD card.

RAM6 GB
Internal storage128 GB
Memory card slotmicroSD

Camera

The camera of the A91 is equipped with autofocus. An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. Very few Android cameras come without autofocus.

Selfie camera16 MP
Main camera48 + 8 + 2 + 2 MP, 8000 x 6000 px, autofocus
FlashDual LED

Connectivity

The Oppo A91 supports 2G, 3G and 4G/LTE networks. 4G is the fourth generation of mobile phone technology. This phone has a built-in GPS. GPS is a highly accurate navigation system using signals from satellites to determine a location on the Earth's surface, irrespective of weather conditions. Most phones have a GPS unit on board. The A91 phone has built-in FM radio. The built-in FM Radio is great for listening to your favorite radio station.

GSM 2G bands850 / 900 / 1800 / 1900
Network coverage2G / 3G / 4G
Wi-FiWi-Fi 802.11 a/b/g/n
Bluetoothv4.2, A2DP
GPSA-GPS, GLONASS, Beidou
NFCno
FM radioyes
USBUSB Type-C
Headphone3.5 mm jack

Battery

The Li-Po 4025 mAh, non-removable battery gives the smartphone a good battery backup. The lithium polymer (Li-Po) battery is a thin, light-weight, rechargeable battery. No periodic discharge is needed and charging can be done at random. The battery of A91 isn't removable without voiding the warranty.

TypeLi-Po 4025 mAh, non-removable

Features

Smartphones today come with a wealth of sensors to facilitate a better user experience. The accelerometer is a sensor that measures the tilting motion and orientation of the phone. The A91 phone has a fingerprint scanner. This sensor identifies and authenticates the fingerprints of an individual in order to grant or deny access to a smartphone. This Oppo phones come with proximity sensor. This proximity sensor detects how close the phone is to an outside object, such as your ear. The A91 phone comes with a compass sensor. A compass sensor is a device that provides accurate directions in relation to the earth's North and South magnetic poles. The Dual SIM capability of Oppo A91 phone is ideal for businesses wishing to provide staff with a mobile device that can offer separate numbers and bills for both personal and business use. This smartphone supports fast charging technology, which comes in handy when you need quick juice on your device.

Sensorsaccelerometer, compass, fingerprint, gravity, gyroscope, in-display fingerprint sensor, light, proximity
SpecialsColorOS, Dual SIM, Fast charging

The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Oppo A91, then don’t hesitate and signal the problem to us.

Oppo A91 pictures

Oppo A91 photo Oppo A91 photo
Oppo A91 / A91

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