The Best Oppo A91 Review to know More About Its Specifications
When you want to buy a new mobile phone, this Oppo A91 review will make it easier for you to grasp those tons of unclear jargon which you’ll find in Oppo A91 brochure, e.g. storage capacity, exynos chip-set, battery performance (mAh), and screen features.
Oppo A91 model status in the market is: Available. However, it is announced by Oppo company on 12/20/2019 and Released 2019, December.
Oppo A91 has 128GB 4GB RAM, and 4025 mAh battery life (the more mAh value gives more strength to the battery). When you purchase Oppo A91, you will gain 48 MP, f/1.8, 26mm (wide), 1/2.0″, 0.8µm, PDAF rear camera and 20 MP, f/2.0, (wide), 1/2.8″, 1.0µm selfie camera.
Oppo A91 comes with a 6.4 inches, 100.4 cm2 display size and Corning Gorilla Glass 5 as a display protection that is intended to conserve the screen when the phone falls on hard and rough surfaces.
Oppo A91 has these software and hardware platforms:
* Android 9.0 (Pie), upgradable to Android 11, ColorOS 11 OS,
* Mediatek MT6771V Helio P70 (12nm) Chipset
* Octa-core (4×2.1 GHz Cortex-A73 & 4×2.0 GHz Cortex-A53) Processor.
In this article, you will find Oppo A91 review which will sort-out the main Oppo A91 specs that you need to make a wise decision about your new device.
This Oppo A91 Review Is Your Guide To Learn About The Body Specs
People are often interested in the cellular phone’s body characteristics, which prompted most smartphone producers to harness a considerable part of the company’s research and budget to develop this aspect of cellular phones so that it fits all the aspirations of the consumer. In the following lines, you will see Oppo A91 review, which will explain the most important details related to the body of this device.
* Body Dimensions: 160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in) which mean height, width, and thickness (depth) respectively.
* Body Weight: 172 g (6.07 oz).
For mobile phones, a weight between 140g to 170g is considered appropriate for most consumers.
* Body Build: Glass front (Gorilla Glass 5), plastic back, plastic frame.
Here are the most known body kinds of the cellular phones:
* Metal. Some cellular phones producers use metal in the construction of the phone’s body in order to give the maximum protection for its inner components.
* Glass. Devices whose body is made of glass may look more attractive, but this kind is not considered durable when fulling on hard surfaces.
* Plastic. This kind is very functional, so it is the most popular one in the manufacture of cellular phone bodies.
How to Choose Your Best Color? Oppo A91 Review
Black and white are likely the most public colors for mobile phone covers, however, businesses have continued to produce a wide range of additional colors in order to draw in more clients.
Oppo A91 comes in the following colors: Lightening Black, Unicorn White, Blazing Blue, Red.
Oppo A91 Review In Terms of Display features
As cellphones inventions evolve very fast, it is hard to identify any cellular phone or combination of features as the best. This applies to the quality and specifications of the screen. In fact, choosing it depends on your particular requirement and the areas in which you use smartphones. In the following lines, we will represent the primary screen features of Oppo A91
Display Type: AMOLED – Always choose a screen kind that offers genuine black and more bright colors.
Display Size: 6.4 inches, 100.4 cm2 – The common standard screen size of cellular phones now averages between 4.7 and 6.5 inches.
Display Nits Brightness: 430 nits (typ).
Display Nits Full: 430 nits (typ),.
Screen To Body Ratio: (~85.5% screen-to-body ratio). It provides the percentage of how much of the front side is covered by the screen.. Smartphones that have the largest screen to body ratio look delicate and give it a premium look.
Display Ratio: 20:9 ratio. the Aspect ratio is the relevance between the height and width of the smartphone screen. Taller aspect ratios like 19.5:9 is coming with the most modern smartphones, and it is suitable for web browsing, and other portrait orientation apps.
Display Resolution: 1080 x 2400 pixels. It is the clarity of an image video in details and sharpness. The pixel resolution for high definition screens is 1920 x 1080.
Display Density: (~408 ppi density). It is the number of physical pixels per inch on a screen, and is measured in Pixels Per Inch (ppi).
Display Protection: Oppo A91 comes with the following display protection:
* Corning Gorilla Glass 5
* Corning Gorilla Glass 5.
All What you Need For Camera characteristics in one Oppo A91 Review
In the following lines, you will find Oppo A91 review about the main cameras.
* Main Camera Single: {48 MP, f/1.8, 26mm (wide), 1/2.0″, 0.8µm, PDAF}.
The following lines sort-out some of the symbols included in the camera specifications:
MP (Megapixels) is the resolution of the image taken by a smartphone.
(f value) is the aperture of a lens indicates how much light it lets in. A bigger aperture lets in more light, and vice versa..
(mm value) This measurement is of the lens’s focal length, which affects the final image that is produced by your camera.
AutoFocus (AF) is the function of a camera to automatically focus on a subject.
* Main Camera Dual: 8 MP, f/2.3, 119˚ (ultrawide), 1/4.0″, 1.12µm
* Main Camera Triple: 2 MP B/W, f/2.4, 1/5.0″, 1.75µm
* Main Camera Quad: 2 MP, f/2.4, (depth)
The main camera features are as follows:
HDR, panorama, 1080p@30fps, gyro-EIS main video camera.
In the following lines, you will see Oppo A91 review of the selfie camera:
* Selfie Camera Single: 20 MP, f/2.0, (wide), 1/2.8″, 1.0µm
The main camera specifications are:
HDR, 1080p@30fps Selfie video camera.
Important Details About The SIM – Oppo A91 Review
SIM an abbreviation for Subscriber Identity Module, and it’s a small plastic card that fits into your phone. It is an electronic chip is available in three sizes: Standard (Mini), Micro, and Nano, and it lets you connect to a cellular network. Then, you can make calls, send SMS messages, and use mobile internet services like 3G, 4G, and 5G. For more information about 3G / 4G networks, refer to Oppo A91 3G or Oppo A91 4G articles. However, you can use the smartphone without a SIM to use some available applications on it, play games, and connect to a Wi-Fi network to explore the web.
This smartphone model comes with Dual SIM (Nano-SIM, dual stand-by) card. For more info, refer to How to insert SIM card in Oppo A91 article.
Here are the common SIM card kinds:
* Nano SIM. It is the smallest removable SIM card size, so it is the most modern one (other than eSIMs, which we’ll talk about it very soon) and it’s used by the vast majority of current cellphones.
* Micro SIM. They have a little bit larger chip, and they haven’t been utilized too often lately.
* Standard SIM (Mini SIM). It is the biggest SIM card size in use, and it’s the most seldom used.
* eSIM. It is an embedded SIM card, meaning that you can’t remove it from your mobile phone.
Oppo A91 Review of The Performance
This model has Mediatek MT6771V Helio P70 (12nm) chipset.
Advanced embedded chipsets in mobile phones allows the performing of many different tasks depending on their programming. They are built-in as part of the complete device including hardware and mechanical parts. The most famous chipset types are: QUALCOMM Snapdragon, INTEL ATOM, and MEDIATEK CHIPSETS..
Oppo A91 has Octa-core (4×2.1 GHz Cortex-A73 & 4×2.0 GHz Cortex-A53) CPU.
CPU (Central Processing Unit) performance is necessary for the daily user experience. Thus, the higher the number of cores, and the higher the number of processing speed the better the performance will be..
Oppo A91 has the following GBU (Graphics Processing Unit): Mali-G72 MP3.
This chip is responsible for processing all graphics jobs. In fact, Users are now more familiar about the various GPU chip kinds included in smartphone chipsets and occasionally take their performance into account when making purchases.
Oppo A91 Review of the Storage specifications and Capacity
One of the major deciding factors when you want to buy a new mobile phone is the size of storage it offers. Actually, Oppo A91 comes with microSDXC memory card slot, and the following internal storage: 128GB 4GB RAM – 128GB 8GB RAM – 256GB 8GB RAM
There are two types of phone’s memory:
Internal: It is built in the phone, and can’t be expanded. Nowadays, the majority of smartphones have internal storage that is at least 32GB or 64GB and a few high-end models feature 256GB or 512GB.
External: It is a removable SD card used as an extra storage to store photos, music, videos, etc., regardless of the type of SD card slot.
Oppo A91 Review of Connectivity and Mobile Networks
A mobile network, (or wireless network), is a system that allows users to send and receive radio wave.. It consists of base stations, each of which comprises a geographical zone that called “cell”. This enables many mobile transceivers, such as mobile phones, to communicate with one another. Actually, 3 kinds of working mobile networks: 3G, 4G (LTE), and 5G.
Oppo A91 supports the following networks: 3G. For more information, refer to Oppo A91 3G article. – 4G. For more info, refer to Oppo A91 4G article.
Available Wireless Connections – Oppo A91 Review
This model supports the following wireless connections:
* WLAN connection: {Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot}. Wireless Local Area Network uses Wi-Fi to communicate to the home or office wireless network using the local router and offers Internet access.
* Bluetooth connection: {4.2, A2DP, LE}. It is a common wireless communication protocol used to communicate two devices together over short distances, allowing them share data between different devices.
* GBS connection: {Yes, with A-GPS, GLONASS, BDS}.Global Positioning System enables cellphone to determine any position you need.
* USB connection: {USB Type-C 2.0, USB On-The-Go}.Universal Serial Bus is wired technology that allows users to connect two devices, such as a smartphone with a PC, to either transfer data or to charge the connected device.
* Features Sensors: {Fingerprint (under display, optical), accelerometer, gyro, proximity, compass}. The sensor is a device that detects and majors the changes in the nearby environment such as ambient light and motion.
The Operating System – Oppo A91 Review
This model comes with {Android 9.0 (Pie), upgradable to Android 11, ColorOS 11} operating system.
Oppo A91 Review of The Battery Main Specs
Nothing is more essential than the smartphone’s battery, which powers these devices and retains daily life going. In the following lines, you will find Oppo A91 review of its main battery.
* Battery Technology: {Li-Po}.
* Oppo A91 comes with {non-removable} battery.
* Battery Capacity: {4025} mAh. It refers to the amount of storage volume a specific battery may offer. A battery with 3100 mAh capacity rating could supply a current of 3100 mA for one hour. Higher mAh ratings for the same battery type will generally mean more working time.
* Battery Charging: {Fast charging 20W}.
Oppo A91 Review – The Battery Secondary Specifications
In addition to the primary Oppo A91 specs that we mentioned earlier, this model has more battery-related features that are relatively varied depending on the type of the cellphone. These specifications are as follows:
* Battery Charging Original: {Fast charging 20W, 50% in 30 min (advertised), VOOC 3.0}.
The meanings for the cellular phone’s terms are always unclear. This Oppo A91 review leads you to have clear idea about it
