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General

NameOppo A1Walton Primo NF4-
ModelA1Primo NF4-
PriceTK. 20,990Tk. 6,499-

Network

Network TypeGSM / HSPA / LTEGSM/UMTS/LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900-
Network 3GHSDPA 850 / 900 / 1900 / 2100UMTS 2100-
Network 4GLTELTE-
Network SpeedHSPA 42.2/5.76 Mbps, LTEHSPA, LTE-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeS-IPS LCD capacitive touchscreen, 16M ColorsIPS Screen-
Display Size5.7 inches, 83.8 cm25.99 inches-
Display Resolution720 x 1440 pixels, 18:9 ratio960 x 480 pixels FWVGA+-
Display MultitouchYes - Color OSYes-
Display Density282 ppi densityInfo. not available-
Display Screen Protection-2.5D Curved Glass-

Camera

Primary Camera13 MP (f/2.2, 1/3`, 1.12 µm), phase detection autofocus, LED Flash8MP-
Secondary Camera8 MP8MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaLED Flash-
Video[email protected][email protected]-

Body

Body ColorBlue, Red, WhiteInfo. not available-
Body Dimensions-160.7 x 77.7 x 8.3 mm-
Body Weight-172 g-

Launch

Launch AnnouncementMarch, 2018July, 2019-
Launch DateRelease April 1st, 2018Release July, 2019-

Platform

Operating SystemAndroid 7.1 NougatAndroid 8.1 Oreo (Go Edition)-
CPU-1.28GHz Quad-Core Processor-
GPU-PowerVR Rogue GE8100-
Chipset-Snapdragon-

Memory

Memory Internal64 GB8GB-
Memory ExternalmicroSD, up to 128 GBmicroSD, up to 64GB-
Ram4 GB 1GB-

Battery

Battery TypeNon-removable Li-Ion BatteryLi-Polymer Battery-
Battery Capacity3180 mAh 3200 mAh Battery-

Multimedia

Fm RadioYesYes-

Sound

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

Connectivity

WiFiWi-Fi 802.11 b/g/n, Wi-Fi Direct, HotspotYes-
Bluetooth4.2, A2DP, LEYes-
USBmicroUSB 2.0microUSB 2.0-
GPSYes, with A-GPSYes-

Features

SensorsAccelerometer, proximityAccelerometer, Fingerprint Scanner-
MessagingSMS(threaded view), MMS, Email, Push EmailSMS(threaded view), MMS, Email-
BrowserHTML5HTML5-
JavaNoNo-

Other

Other FeaturesMP4/H.264/FLAC player, MP3/eAAC+/WAV player, Document viewer, Photo viewer/editorNotification Light-
Made By-Bangladesh-