The OPPO A91 128GB Lightening Black has 4G network connectivity, so you can download most data in just seconds. Take pictures with tack-sharp detail with its 48MP quad rear camera. Also, this mobile phone has a 16 MP front camera and a ColorOS 6.1.2 operating system. Its 128 GB storage capacity helps you hold onto your favourite installed apps and games. The OPPO phone has 256 GB of expandable storage, allowing you to add additional memory capacity. Also, it has a dual nano SIM card slot. You can look at crisp text and graphics with the phone’s 2400 x 1080 pixel screen resolution. It has a 6.4-inch display, 1080p HD recording, a Bluetooth connection, and GPS capability and is black. This mobile phone has a 73.3mm width, a 160.2mm height, and a 7.9mm depth. It has 4025 mAh battery. This OPPO mobile phone is good for reaping the benefits of a new phone.