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General

NameVivo X21iXiaomi Mi 8 Explorer-
ModelX21iMi 8 Explorer-
Price-TK. 49,990-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / CDMA / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMAGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA-
Network 3GHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1700(AWS) / 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), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M ColorsSuper AMOLED capacitive touchscreen, 16M Colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio6.21 inches, 97.1 cm2 (~83.8% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio1080 x 2248 pixels-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density~402 ppi-
Display Screen Protection-Corning Gorilla Glass 5 - HDR10 display - DCI-P3 - MIUI 10-

Camera

Primary Camera12MP (f/1.8, 1/2.512 MP, f/1.8, 1/2.55-
Secondary Camera24MP20 MP, f/2.0, 0.9µm-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaDual-LED Flash, HDR, panorama-
Video[email protected][email protected], [email protected]/240fps-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)154.9 x 74.8 x 7.6 mm (6.10 x 2.94 x 0.30 in)-
Body Weight159 g (5.61 oz)177 g (6.24 oz)-
Body ColorBlack, Aurora White, Ruby RedBlack (transparent back)-
Body Build-Front/rear glass, aluminum frame (7000 series)-

Launch

Launch AnnouncementMay, 2018May, 2018-
Launch DateRelease May 19th, 2018Released July, 2018-

Platform

Operating SystemAndroid 8.1 OreoAndroid 8.1 Oreo-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)-
GPUMali-G72 MP3Adreno 630-
ChipsetMediatek MT6771 Helio P60Qualcomm SDM845 Snapdragon 845-

Memory

Memory Internal64GB, 128GB128 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)No-
Ram4GB, 6GB 8 GB-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Po Battery-
Battery Capacity3425 mAh 3000 mAh -

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, WAV Ringtones-
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - 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 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, LE5.0, A2DP, LE, aptX HD-
USBmicroUSB 2.0, USB On-The-GoType-C 1.0 reversible connector-
GPSYes, with A-GPS, GLONASSYes, with dual-band A-GPS, GLONASS, BDS, GALILEO,-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compassFace ID, fingerprint -under display, accelerometer, gyro, proximity, barometer, compass-
MessagingSMS(threaded view), MMS, Email, Push EmailSMS(threaded view), MMS, Email, Push Email, IM-
BrowserHTML5HTML5-
JavaNoNo-

Other

Made ByChinaChina-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorFast battery charging (Quick Charge 4.0+), MP4/DivX/XviD/WMV/H.265 player, MP3/WAV/eAAC+/FLAC player, Photo/video editor, Document viewer-