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General

NameOppo A1Xiaomi Black Shark Helo-
ModelA1Black Shark Helo-
PriceTK. 20,990TK. 42,990-

Network

Network TypeGSM / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA-
Network 3GHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO-
Network 4GLTELTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)-
Network SpeedHSPA 42.2/5.76 Mbps, LTEHSPA, LTE-A (3CA)-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeS-IPS LCD capacitive touchscreen, 16M ColorsAMOLED capacitive touchscreen, 16M Colors-
Display Size5.7 inches, 83.8 cm26.01 inches, 93.2 cm2 (~77.5% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio1080 x 2160 pixels, 18:9 ratio-
Display MultitouchYes - Color OSYes - 100% DCI-P3 Coverage-
Display Density282 ppi density402 ppi density-

Camera

Primary Camera13 MP (f/2.2, 1/3`, 1.12 µm), phase detection autofocus, LED FlashDual: 12 MP, f/1.8, 1.25µm, dual pixel PDAF
20 MP, f/1.8, 1.0µm, AF, 2x optical zoom
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Secondary Camera8 MP20 MP, f/2.2, 1.0µm-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaDual-LED Dual-tone Flash, HDR, Panorama-
Video[email protected][email protected], [email protected], [email protected]-

Body

Body ColorBlue, Red, WhiteBlack-
Body Dimensions-160 x 75.2 x 8.7 mm (6.30 x 2.96 x 0.34 in)-
Body Weight-190 g (6.70 oz)-

Launch

Launch AnnouncementMarch, 2018October, 2018-
Launch DateRelease April 1st, 2018Released November, 2018-

Platform

Operating SystemAndroid 7.1 NougatAndroid 8.0 (Oreo)-
CPU-Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)-
GPU-Adreno 630-
Chipset-Qualcomm SDM845 Snapdragon 845 (10 nm)-

Memory

Memory Internal64 GB128 GB, 256 GB-
Memory ExternalmicroSD, up to 128 GBNo-
Ram4 GB 6 GB, 8 GB, 10 -

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Ion Battery-
Battery Capacity3180 mAh 4000 mAh -

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, WAV Ringtones-
LoudspeakerYesYes, with Stereo Speakers-
3.5mm JackYes - Active noise cancellation with dedicated micNo - Active noise cancellation with dedicated mic - Type-C to 3.5 mm headphone jack adapter-

Connectivity

WiFiWi-Fi 802.11 b/g/n, Wi-Fi Direct, HotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot-
Bluetooth4.2, A2DP, LE5.0, A2DP, aptX HD, LE-
USBmicroUSB 2.02.0, Type-C 1.0 reversible connector-
GPSYes, with A-GPSYes, with A-GPS, GLONASS, BDS-

Features

SensorsAccelerometer, proximityFingerprint -rear-mounted, accelerometer, gyro, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push EmailSMS(threaded view), MMS, Email, Push Email, IM-
BrowserHTML5HTML5-
JavaNoNo-

Other

Other FeaturesMP4/H.264/FLAC player, MP3/eAAC+/WAV player, Document viewer, Photo viewer/editorFast battery charging 9V/2A 18W (Quick Charge 3.0), XviD/MP4/H.265 player, MP3/WAV/eAAC+/Flac player, Photo/video editor ,Document viewer-
Made By-China-