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General

NameVivo X21iSamsung Galaxy A21-
ModelX21iGalaxy A21-
Price-Tk 16,000-

Network

Network TypeGSM / CDMA / HSPA / LTE GSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMAGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-
Network 3GHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1900 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800)-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/75 Mbps-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M Colors Super AMOLED capacitive touchscreen, 16M colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio 6.3 inches, 16 cm-
Display Resolution1080 x 2280 pixels, 19:9 ratio 720 x 1520 pixels-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density--

Camera

Primary Camera12MP (f/1.8, 1/2.512 MP
8 MP wide-angle
2 MP
2 MP depth sensor
-
Secondary Camera24MP8 MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaLED flash, panorama, HDR-
Video[email protected][email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)--
Body Weight159 g (5.61 oz)--
Body ColorBlack, Aurora White, Ruby RedVarious-

Launch

Launch AnnouncementMay, 2018February 25,2020-
Launch DateRelease May 19th, 2018Release , 2020-

Platform

Operating SystemAndroid 8.1 Oreo Android 9-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core (1.8 GHz, Dual-core, Cortex A73 + 1.6 GHz, Hexa Core, Cortex A53)-
GPUMali-G72 MP3Mali-G71 MP2-
ChipsetMediatek MT6771 Helio P60Samsung Exynos 7 Octa 7904-

Memory

Memory Internal64GB, 128GB 64 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot) microSD, up to 512 GB-
Ram4GB, 6GB 4 GB-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Po-
Battery Capacity3425 mAh 4000 mAh-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV Ringtones Vibration, MP3, WAV ringtones-
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micYes-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot-
Bluetooth5.0, A2DP, LE 5.0, A2DP, LE-
USBmicroUSB 2.0, USB On-The-Go 2.0, Type-C 1.0 reversible connector-
GPSYes, with A-GPS, GLONASS Yes, with A-GPS-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compassFingerprint, accelerometer, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push Email SMS(threaded view), MMS, Email, IM-
BrowserHTML5 HTML5-
JavaNoNo-

Other

Made ByChinaKorea-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorColor:Various-