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General

NameVivo X21iXiaomi Black Shark 2-
ModelX21iBlack Shark 2-
Price-Tk. 45,120-

Network

Network TypeGSM / CDMA / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMAGSM 850 / 900 / 1800 / 1900-
Network 3GHSDPA 850 / 900 / 2100 HSDPA 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-
Network SpeedHSPA, LTEHSPA, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M Colors AMOLED capacitive touchscreen, 16M Colors -
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio 6.39 inches, 100.2 cm2 (~81.7% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio 1080 x 2340 pixels, 19.5:9 ratio-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density 403 ppi density-

Camera

Primary Camera12MP (f/1.8, 1/2.5 Dual: 48 MP
12 MP
-
Secondary Camera24MP 20 MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaLED Flash, HDR, Panorama-
Video[email protected] [email protected], [email protected], [email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)163.6 x 75 x 8.8 mm (6.44 x 2.95 x 0.35 in)-
Body Weight159 g (5.61 oz) 205 g-
Body ColorBlack, Aurora White, Ruby Red Black, Silver, Blue-
Body Build-Info. not available-

Launch

Launch AnnouncementMay, 2018March, 2019-
Launch DateRelease May 19th, 2018Released March, 2019-

Platform

Operating SystemAndroid 8.1 OreoAndroid 8.0 (Oreo)-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Octa-core (1x2.84 GHz Kryo 485 & 3x2.41 GHz Kryo 485 & 4x1.78 GHz Kryo 485)-
GPUMali-G72 MP3 640-
ChipsetMediatek MT6771 Helio P60 Qualcomm SDM855 Snapdragon 855-

Memory

Memory Internal64GB, 128GB 128 GB, 256 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)No-
Ram4GB, 6GB 6 GB, 8 GB, 12 GB-

Battery

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

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV Ringtones Vibration, MP3, WAV Ringtones-
LoudspeakerYes Yes with Stereo Speakers-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micNo - Active noise cancellation with dedicated mic-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot-
Bluetooth5.0, A2DP, LE 5.0, A2DP, aptX HD, 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, GLONASS, BDS-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compass Fingerprint -under display, accelerometer, gyro, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push Email SMS(threaded view), MMS, Email, Push Email, IM-
BrowserHTML5 HTML5-
JavaNo No-

Other

Made ByChinaChina-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editor Fast battery charging 27W-