OPPO A91 runs the Android v9.0 (Pie) operating system, and 2GHz, Octa-Core Processor, powers the phone. It runs on the Helio P70 chipset. It has 8 GB RAM and 128 GB internal storage and has support for memory cards up to 256 GB. The amount of RAM in a phone is responsible for how many applications can stay in memory and not need to reload.
The non-removable hardware storage inside the smartphone is responsible for file storage and for the applications on it. The entire system is running on the internal storage, which makes it is quality significant to boost performance. The spectrum of current internal storage is from Emma 5.0, Emma 5.1, UFS 2.0, UFS 2.1, etc.
This phone comes with a non-removable 4025 mAh battery with VOOC v3.0 fast charging. Fast charging standards vary from OEM to OEM, and aside from the quick charging standards of Qualcomm, most other specifications are from smartphone manufacturers. OnePlus Dash switch, Samsung’s Adaptive fast charging, Oppo’s Vooc, and Super Vooc are some examples.
Battery capacity in mAh shows the battery’s physical capacity to store charge within it. When we don’t take software optimization into account and a few other considerations, the bigger the battery, the better it’s efficiency.
The display technology on this smartphone is an AMOLED screen. The display technologies on smartphones decide many variables, including their size, luminosity, energy consumption, picture quality, etc. The variety of smartphone screens includes TFT, TN panels, IPS LCD panels, OLED, and AMOLED.
This OPPO phone has a 6.4-inch high-resolution responsive touch ( Capacitive, MultiTouch ) 1080 x 2400 pixels display, a 20:9 aspect ratio, and ~411 PPI pixel density. Modern smartphone displays come in various shapes and sizes, and this ranges from near bezel less, notch display, waterdrop notch, to bezel-less phones entirely.
The Percentage of display area to the front of the smartphone with the advent of tall 18:9 displays, this ratio became more popular recently. We now have less bezel, notched screens of 18.5:9, 19:9, and even 19.5:9 screen-to-body ratios.
Camera (Picture Quality)
At the rear, the OPPO A91 has a high-resolution Quad camera 48 MP f/1.8 (Wide Angle), 8 MP f/2.2 (Ultra Wide), 2 MP f/2.4 (Macro), 2 MP f/2.4 (Depth Sensor) with autofocus, LED flash (The flash means you can take shots in low light.) and also supports video recording at 2160p @ 30fps UHD.
The maximum resolution for rear camera video capture means the smartphone can shoot the highest resolution in 1080×1920 @ 30fps/60fps, or 4K @30fps/60fps, and can be lower still depending on the device.
To make the video shake free, the camera has to support one kind of stabilisation. OIS or Optical Image Stabilisation is facilitated by a movable camera module that compensated for your shakes. EIS or Electronic Image Stabilisation is where in post processing, the video is slightly cropped in and stabilized.
OPPO A91 Camera features CMOS (complementary metal-oxide-semiconductor), Autofocus, Continuous shooting, Digital zoom, Optical zoom, Digital image stabilization, Optical image stabilization, Geotagging, Panorama, HDR, etc.
The OPPO A91 front 16 MP f/2 (Wide Angle) camera, supports video calling and allows you to take photos using the front camera and also use the video call feature (If your mobile network provider supports video calling). The front camera supports video recording at 1080p @ 30fps FHD.
The maximum resolution of the front camera video recording lets one know the highest resolution they can shoot in and would be in the range of 720×1280@30fps or 1080×1920 @30fps/60fps and may be lower depending on the smartphone too.
The OPPO A91 has support for the Fingerprint sensor at the rear, and Face Unlock is used to secure the phone as a biometric unlock. The Fingerprint sensor and Face Unlock has become today’s most common and secure way of unlocking smartphones and will be used until other biometric locks become reliable and secure.
Network and Connectivity
OPPO A91 network and connectivity options are 3G, 4G, WiFi, WiFi Hotspot, and Bluetooth v5.0, USB on-the-go, USB Charging, etc. With Bluetooth on your phone, you can make wireless data transfers to other compatible Bluetooth devices, including file transfers, wireless audio, etc.
Bluetooth versions show the generation, and the Bluetooth connection is better in different ways with every version. The Bluetooth models began with Bluetooth 1.x and came with Bluetooth 2.x, and the nomenclature for later versions goes similarly.
There’s a 3.5mm headphone jack on the OPPO A91, with a 3.5 mm Jack; you can connect to other devices (such as speakers, headphones) with a 3.5 mm port.
OPPO A91 Features:
- Dual Sim, 3G, 4G, VoLTE, Wi-Fi
- Helio P70, Octa Core, 2 GHz Processor
- 8 GB RAM, 128 GB inbuilt
- 4025 mAh Battery with Fast Charging
- 6.4 inches, 1080 x 2400 px Display with Water Drop Notch
- 48 MP Quad Rear & 16 MP Front Camera
- Memory Card Supported, up to 256 GB
- Android v9.0 (Pie)
OPPO A91 Deals / Prices
- This product is available at cect-shop.com, Banggood, Jumia.
- At cect-shop.com you can purchase Oppo A91 for only $233.95, which is 42% less than the cost in Banggood ($399.99).
- The lowest price of OPPO A91 CN Version 6.4 inch FHD+ Android 9.0 4000mAh VOOC 3.0 48MP Quad Rear Cameras 8GB 128GB Helio P70 Octa Core 4G Smartphone was obtained on May 2, 2021 4:21 am.
OPPO A91 Specifications
|Sim Type||Dual Sim, GSM+GSM|
|Sim Size||Nano SIM|
|Release Date||December 26, 2019 (Expected)|
|Dimensions||7.9 mm thickness|
|Type||Color AMOLED screen (16M)|
|Touch||Yes, with Multitouch|
|Size||6.4 inches, 1080 x 2400 pixels|
|Notch||Yes, Water Drop Notch|
|Card Slot||Yes, up to 256 GB|
|Wifi||Yes, with wifi-hotspot|
|USB||Yes, USB-C v2.0|
|USB Features||USB on-the-go, USB Charging|
|GPS||Yes, with A-GPS|
|Fingerprint Sensor||Yes, In Display|
|Sensors||Accelerometer, Gyro, Proximity, Compass|
|3.5mm Headphone Jack||Yes|
|Rear Camera||48 MP f/1.8 (Wide Angle)
8 MP f/2.2 (Ultra Wide)
2 MP f/2.4 (Macro )
2 MP f/2.4 (Depth Sensor) with autofocus
|Video Recording||2160p @ 30fps UHD|
|Front Camera||16 MP f/2 (Wide Angle)|
|Front Video Recording||1080p @ 30fps FHD|
|OS||Android v9.0 (Pie)|
|Chipset||Mediatek Helio P70|
|CPU||2 GHz, Octa Core Processor|
|Core Details||4×2.0 GHz Cortex-A73 & 4×2.0 GHz Cortex-A53|
|Browser||Yes, supports HTML5|
|Size||4025 mAh, Li-Po Battery|
|Fast Charging||VOOC, v3.0|
Please note that while we attempt to provide as accurate specs as possible, we are not guaranteeing that they are 100% correct.
Best Oppo phones 2020
Last update on 2021-05-06 / Amazon