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General

NameVivo X21iXiaomi Redmi Note 9-
ModelX21iRedmi Note 9-
Price-Tk 18,999-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / 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 - China-
Network 3GHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Global HSDPA 850 / 900 / 1900 / 2100 - China-
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), 20(800), 38(2600), 40(2300) - Global LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M ColorsIPS LCD capacitive touchscreen, 16M colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio6.4 inches, 16.26 cm-
Display Resolution1080 x 2280 pixels, 19:9 ratio1080 x 2340 pixels-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi densityCorning Gorilla Glass 5-

Camera

Primary Camera12MP (f/1.8, 1/2.548 MP
8 MP
2 MP
2 MP
-
Secondary Camera24MP13 MP -
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaLED flash, HDR, panorama-
Video[email protected][email protected]/30fps, [email protected], [email protected]; gyro-EIS-

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, 2018Not announced yet-
Launch DateRelease May 19th, 2018Release 2020-

Platform

Operating SystemAndroid 8.1 OreoAndroid 9.0 (Pie)-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core (2 GHz, Dual-core, Kryo 460 + 1.7 GHz, Hexa Core, Kryo 460)-
GPUMali-G72 MP3Adreno 612-
ChipsetMediatek MT6771 Helio P60Qualcomm Snapdragon 675-

Memory

Memory Internal64GB, 128GB64 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)microSDXC (uses shared SIM slot)-
Ram4GB, 6GB 4 GB-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Po-
Battery Capacity3425 mAh 4100 mAh-

Multimedia

Fm RadioYesYes-

Sound

AudioVibration, MP3, WAV RingtonesVibration, 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, hotspot-
Bluetooth5.0, A2DP, LE5.1, A2DP, LE, aptX HD-
USBmicroUSB 2.0, USB On-The-Go2.0, Type-C 1.0 reversible connector-
GPSYes, with A-GPS, GLONASSYes, with dual-band A-GPS, GLONASS, BDS, GALILEO-

Features

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

Other

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