Oppo A71 has Android 7.1 (Nougat), It offers an internal memory of 16 GB with 3 GB RAM, It presents a screen of HD resolution, And it comes with a battery capacity of 3000 mAh .
Oppo A71 specifications
General
6247 Announce date : September, 2017
6247 Release date : September, 2017
6247 Height × Width : 148.1 mm x 73.8 mm (5.83 x 2.91 in)
6247 Thickness : 7.6 mm (0.30 in)
6247 Weight : 137 g (4.83 oz)
6247 SIM : Dual SIM (Nano-SIM, dual stand-by)
6247 Colors : Gold, Black
6247 Build : Front glass, aluminum body
Display
6247 Display type : IPS LCD capacitive touchscreen ,16M colors
6247 Screen size : 5.2 inches (~68.2% screen-to-body ratio)
6247 Resolution : 720 x 1280 pixels [ HD resolution ]
6247 Pixel density : (~282 ppi pixel density)
6247 Multitouch feature : yes
6247 Color OS 3.1 : yes
Camera & Video
6247 Rear camera : 13 MP, f/2.2, PDAF
6247 Camera features : LED flash, HDR, panorama
6247 Video : 1080p@30fps [ Full HD video ]
6247 Front camera : 5 MP, f/2.4
Memory
6247 Expandable memory : Card slot microSD, up to 256 GB (dedicated slot)
6247 Internal Memory : 16 GB
6247 RAM : 3 GB RAM
Battery
6247 Battery type : Non-removable Li-Ion
6247 Battery capacity : 3000 mAh
Platform
6247 Operating System : Android 7.1 (Nougat)
6247 Chipset : Mediatek MT6750 (28 nm)
6247 Processor : Octa-core (4×1.5 GHz Cortex-A53 & 4×1.0 GHz Cortex-A53)
6247 Graphics : Mali-T860MP2
Network
6247 2G bands : GSM 850 / 900 / 1800 / 1900 – SIM 1 & SIM 2
6247 3G bands : UMTS 900 / 2100 / 850
6247 4G bands : LTE & LTE – India (Band 40)
6247 Speed : HSPA, LTE
6247 GPRS : yes
6247 EDGE : yes
Sound
6247 Alert types : Vibration, MP3, WAV ringtones
6247 Loudspeaker : yes
6247 3.5 mm jack : yes
6247 Active noise cancellation with dedicated mic : yes
CONNECTIVITY
6247 WLAN : Wi-Fi 802.11 b/g/n, hotspot
6247 Bluetooth : 4.0, A2DP
6247 GPS : yes, with A-GPS
6247 USB : MicroUSB 2.0, USB On-The-Go
6247 Radio : FM radio
Features
6247 Sensors : Accelerometer , Proximity, Compass, Ambient light sensor
6247 Messaging : SMS (threaded view), MMS, Email, Push Email, IM
6247 Browser HTML5 : yes
6247 MP3/WAV/eAAC+ player : yes
6247 MP4/H.264/FLAC player : yes
6247 Document viewer : yes
6247 Photo/video editor : yes
Oppo A71 disadvantages
6247 NFC : No
6247 Infrared port : No
6247 Removable battery : No
6247 Protection for the screen : No
6247 Water & Dust resistant : No
6247 Fingerprint sensor : No
6247 Gyroscope sensor : No
6247 Barometer sensor : No
6247 Temperature sensor : No
6247 Wi-Fi Direct : No
6247 Fast battery charging : No