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General

NameOppo A1Allview V4 Viper Pro-
ModelA1 V4 Viper Pro-
PriceTK. 20,990Tk. 16,500-

Network

Network TypeGSM / HSPA / LTE GSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-
Network 3GHSDPA 850 / 900 / 1900 / 2100 HSDPA 900 / 2100-
Network 4GLTELTE band 1(2100), 3(1800), 7(2600), 20(800), 38(2600)-
Network SpeedHSPA 42.2/5.76 Mbps, LTEHSPA, LTE-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeS-IPS LCD capacitive touchscreen, 16M Colors IPS LCD capacitive touchscreen, 16M Colors -
Display Size5.7 inches, 83.8 cm2 6.8 inches, 115.4 cm2 (~82.3% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio 640 x 1352 pixels, 19:9 ratio-
Display MultitouchYes - Color OS Yes-
Display Density282 ppi density 220 ppi density-

Camera

Primary Camera13 MP (f/2.2, 1/3`, 1.12 µm), phase detection autofocus, LED Flash Dual: 13MP
0.3MP, (depth sensor)
-
Secondary Camera8 MP 8MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panorama LED Flash-
Video[email protected] [email protected]-

Body

Body ColorBlue, Red, White Dark Grey-
Body Dimensions-171 x 82 x 8.8 mm (6.73 x 3.23 x 0.35 in)-
Body Weight- 191.6 g-

Launch

Launch AnnouncementMarch, 2018January,2020-
Launch DateRelease April 1st, 2018Released January,2020-

Platform

Operating SystemAndroid 7.1 Nougat Android 9.0 (Pie)-
CPU- Quad-core 1.3 GHz Cortex-A53-
GPU- PowerVR GE8100-
Chipset- Mediatek MT6739 (28 nm)-

Memory

Memory Internal64 GB 32GB-
Memory ExternalmicroSD, up to 128 GB microSD, up to 128GB (uses shared SIM slot)-
Ram4 GB 2GB-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Po Battery -
Battery Capacity3180 mAh 3500 mAh-

Multimedia

Fm RadioYesYes-

Sound

AudioVibration, MP3, WAV RingtonesYes-
LoudspeakerYesYes-
3.5mm JackYes - Active noise cancellation with dedicated micYes-

Connectivity

WiFiWi-Fi 802.11 b/g/n, Wi-Fi Direct, Hotspot Wi-Fi 802.11 b/g/n, Hotspot-
Bluetooth4.2, A2DP, LE 4.0, A2DP-
USBmicroUSB 2.0 microUSB 2.0-
GPSYes, with A-GPS Yes, with A-GPS-

Features

SensorsAccelerometer, proximity Fingerprint -rear-mounted, accelerometer, proximity-
MessagingSMS(threaded view), MMS, Email, Push Email SMS (threaded view), MMS, Email-
BrowserHTML5 HTML5-
JavaNoNo-

Other

Other FeaturesMP4/H.264/FLAC player, MP3/eAAC+/WAV player, Document viewer, Photo viewer/editorBattery charging 10W-