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General

NameVivo X21iXiaomi Redmi K30-
ModelX21iRedmi K30-
Price-Tk. 22,080-

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 - SIM 1 & SIM 2-
Network 3GHSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 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 IPS LCD capacitive touchscreen, 16M Colors -
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio 6.67 inches, 107.4 cm2 (~84.8% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio 1080 x 2400 pixels, 20:9 ratio-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density 395 ppi density-
Display Screen Protection- Corning Gorilla Glass 5-

Camera

Primary Camera12MP (f/1.8, 1/2.564MP, (wide)
8MP, (telephoto)
2MP, (dedicated macro camera)
2MP, (depth sensor)
-
Secondary Camera24MP Dual: 20MP
2MP, (depth sensor)
-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaDual-LED Flash, HDR, Panorama-
Video[email protected] [email protected], [email protected]/120/240fps, [email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)165.3 x 76.6 x 8.8 mm (6.51 x 3.02 x 0.35 in)-
Body Weight159 g (5.61 oz) 208 g-
Body ColorBlack, Aurora White, Ruby Red Blue, Red, Purple-

Launch

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

Platform

Operating SystemAndroid 8.1 OreoAndroid 10.0 (Ten)-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)-
GPUMali-G72 MP3 Adreno 618-
ChipsetMediatek MT6771 Helio P60 Qualcomm SDM730 Snapdragon 730G (8 nm)-
User Interface (ui)- MIUI 11-

Memory

Memory Internal64GB, 128GB 64GB, 128GB, 256GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot) microSD, up to 256GB (uses shared SIM slot)-
Ram4GB, 6GB 6GB, 8GB-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Po Battery -
Battery Capacity3425 mAh 4500 mAh-
Battery Charging- Fast Battery Charging 27W (100% in 68 min)-

Multimedia

Fm RadioYesYes-

Sound

AudioVibration, MP3, WAV RingtonesYes-
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micYes - 24-bit/192kHz audio - 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, Wi-Fi Direct, Hotspot-
Bluetooth5.0, A2DP, LE 5.0, A2DP, LE, aptX HD-
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-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compassFingerprint -side-mounted, accelerometer, gyro, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push EmailSMS(threaded view), MMS, Email-
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 27W (100% in 68 min)-