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General

NameVivo X21iAsus ROG Phone II ZS660KL-
ModelX21iROG Phone II ZS660KL-
Price-Tk 49,500-

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), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 28(700), 29(700), 32(1500), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 46-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat18 1200/150 Mbps-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M Colors AMOLED capacitive touchscreen, 16M colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio6.59 Inch-
Display Resolution1080 x 2280 pixels, 19:9 ratio 1080 x 2340 pixels, 19.5:9 ratio (~391 ppi density)-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density--
Display Screen Protection-Corning Gorilla Glass 6 DCI-P3 108% HDR10 120 Hz 240 Hz touch-sensing-

Camera

Primary Camera12MP (f/1.8, 1/2.548MP+13MP -
Secondary Camera24MP24MP, f/2.2-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaDual-LED flash, HDR, auto panorama (motorized rotation) Panorama, HDR-
Video[email protected][email protected]/60fps, [email protected]/60/240fps, [email protected]; gyro-EIS (except @240/480fps) [email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in) 171 x 77.6 x 9.5 mm (6.73 x 3.06 x 0.37 in)-
Body Weight159 g (5.61 oz) 240 g (8.47 oz)-
Body ColorBlack, Aurora White, Ruby Red Matte Black, Glossy Black-
Body Build- Front glass (Gorilla Glass 6), back glass, aluminum frame-

Launch

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

Platform

Operating SystemAndroid 8.1 Oreo Android 9.0 (Pie), ROG UI-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)-
GPUMali-G72 MP3Adreno 640 (700 MHz)-
ChipsetMediatek MT6771 Helio P60Qualcomm SDM855 Snapdragon 855+ (7 nm)-

Memory

Memory Internal64GB, 128GB 256GB, 512GB, 1 TB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)No-
Ram4GB, 6GB 12GB-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Po-
Battery Capacity3425 mAh 6000 mAh-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV Ringtones Vibration, MP3, WAV ringtones-
LoudspeakerYes Yes, with stereo speakers-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micYes 24-bit/192kHz audio Active noise cancellation with dedicated mics DTS Headphone X-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotWi-Fi 802.11 a/b/g/n/ac/ad, dual-band, Wi-Fi Direct, hotspot-
Bluetooth5.0, A2DP, LE 5.0, A2DP, LE, aptX HD-
USBmicroUSB 2.0, USB On-The-Go 3.1, Type-C 1.0 reversible connector; accessory connector-
GPSYes, with A-GPS, GLONASS Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compassFingerprint -under display, optical, accelerometer, gyro, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push Email SMS(threaded view), MMS, Email, Push Email, IM-
BrowserHTML5HTML5-
JavaNoNO-

Other

Made ByChinaTaiwan-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorFast battery charging 30W (Quick Charge 4.0) Power bank/Reverse charging 10W-