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General

NameVivo X21iSamsung Galaxy Tab A7 10.4 (2020)-
ModelX21iTab A7 10.4 (2020)-
Price-Tk 25,000-

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-
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-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat13 400/50 Mbps-
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 ratio10.4 inches, 307.9 cm2 (~79.0% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio1200 x 2000 pixels, 5:3 ratio (~224 ppi density)-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density--

Camera

Primary Camera12MP (f/1.8, 1/2.58MP, AF-
Secondary Camera24MP5MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panorama--
Video[email protected][email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)247.6 x 157.4 x 7 mm (9.75 x 6.20 x 0.28 in)-
Body Weight159 g (5.61 oz)476 g (Wi-Fi), 477 g (LTE) (1.05 lb)-
Body ColorBlack, Aurora White, Ruby RedDark Gray, Silver, Gold-

Launch

Launch AnnouncementMay, 2018September 02, 2020-
Launch DateRelease May 19th, 2018Released September 11, 2020-

Platform

Operating SystemAndroid 8.1 OreoAndroid 10, One UI 2.1-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)-
GPUMali-G72 MP3Adreno 610-
ChipsetMediatek MT6771 Helio P60Qualcomm SM6115 Snapdragon 662 (11 nm)-

Memory

Memory Internal64GB, 128GB32GB, 64GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)microSDXC-
Ram4GB, 6GB 3GB-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Po-
Battery Capacity3425 mAh 7040 mAh-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, Ringtones-
LoudspeakerYesYes, with stereo speakers (4 speakers)-
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 b/g/n, WiFi Direct, hotspot-
Bluetooth5.0, A2DP, LE4.2, A2DP-
USBmicroUSB 2.0, USB On-The-Go2.0, Type-C 1.0 reversible connector-
GPSYes, with A-GPS, GLONASSYes, with A-GPS, GLONASS-

Features

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

Other

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