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General

NameVivo X21iXiaomi Redmi 8A-
ModelX21iRedmi 8A-
Price-Tk 10,999-

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), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China-
Network SpeedHSPA, LTEHSPA, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M Colors IPS LCD capacitive touchscreen, 16M colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio 6.2 inches, 95.9 cm2 (~81.4% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio 720 x 1520 pixels, 19:9 ratio (~271 ppi density)-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density--
Display Screen Protection-Corning Gorilla Glass 5-

Camera

Primary Camera12MP (f/1.8, 1/2.512MP, f/1.9, 1/2.55-
Secondary Camera24MP8MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaLED flash, HDR HDR-
Video[email protected] [email protected] [email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in) 156.3 x 75.4 x 9.4 mm (6.15 x 2.97 x 0.37 in)-
Body Weight159 g (5.61 oz) 188 g (6.63 oz)-
Body ColorBlack, Aurora White, Ruby Red Midnight Black, Ocean Blue, Sunset Red-

Launch

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

Platform

Operating SystemAndroid 8.1 Oreo Android 9.0 (Pie); MIUI 10-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core (2x2.0 GHz Cortex-A53 & 6x1.45 GHz Cortex A53)-
GPUMali-G72 MP3Adreno 505-
ChipsetMediatek MT6771 Helio P60Qualcomm SDM439 Snapdragon 439 (12 nm)-

Memory

Memory Internal64GB, 128GB 32GB -
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot) microSD, up to 512GB (dedicated slot)-
Ram4GB, 6GB 2GB, 3GB-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Po-
Battery Capacity3425 mAh 5000 mAh-

Multimedia

Fm RadioYesYes-

Sound

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

Connectivity

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

Features

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

Other

Made ByChinaChina-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorFast battery charging 18W-