Oppo A91

Basic Parameters Color: Lightening Black, Unicorn White, Blazing Blue Operating System: ColorOS 6.1.2, based on Android 9 CPU: MTK MT6771V GPU: ARM Mali G72 MP3 900MHz Battery Capacity: 4025mAh (Standard Value) RAM: 4GB / 8GB Storage: 128GB VOOC Flash Charge: 3.0 Display Size: 16.2cm(6.4'''') Touchscreen: Multi-touch, Capacitive Screen Resolution: 2400 by 1080 pixels at 408 ppi Colors: 16 million colors Screen Ratio: 90.7% Contrast: 1000000:1 Type: AMOLED Brightness: Typical Value 430nit Camera Rear Sensor: 48MP& 8MP & 2MP & 2MP Front Sensor: 16MP Flash: LED Flash Aperture : Front: f/2.0; Rear: Main f/1.79, Wide Angle f/2.25, Portrait& Mono f/2.4 Sensor Size: Main 1/2.25'', 0.8um Secondary Wide Angle 1/4'', 1.12um 2M 1/5'', 1.75um Pixel Size: 1/3.1'', 1.0um Camera Mode: Photo, video, professional mode, panorama, portrait, night scene, time-lapse photography, slow motion, etc. Video: Rear Camera Defualt: 1080P@30fps; Front Camera Default: 720P@30fps Connectivity Frequencies: [Frequency 1] GSM: 850/900/1800/1900MHz WCDMA: Bands 1/5/8 FDD-LTE: Bands 1/3/5/8 TD-LTE: Bands 38/40/41 [Frequency 2] GSM: 850/900/1800/1900MHz WCDMA: Bands 1/5/8 FDD-LTE: Bands 1/3/5/7/8 TD-LTE: Bands 38/40/41 [Frequency 3] GSM: 850/900/1800/1900MHz WCDMA: 850/900/1700/1900/2100MHz FDD-LTE: 700/800/850/900/1700/1800/1900/2100/2600MHz TD-LTE: 1900/2000/2300/2496-2690/2570-2620MHz SIM Card Type: Nano-SIM / Nano-USIM GPS: Built-in GPS; supports A-GPS, Beidou, Glonass Bluetooth: 4.2 WLAN Function: 2.4/5GHz 802.11 a/b/g/n/ac OTG: Supported.