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General

NameVivo X21iSamsung Gear S3 Classic LTE-
ModelX21iGear S3 Classic LTE-
Price-Tk. 34,950-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMAGSM 900 / 1800-
Network 3GHSDPA 850 / 900 / 2100HSDPA 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 band 2(1900), 4(1700/2100), 5(850) - USA-
Network SpeedHSPA, LTEHSPA, LTE-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M ColorsSuper AMOLED capacitive touchscreen, 16M Colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio1.3 inches (~24.2% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio360 x 360 pixels-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density392 ppi pixel density-
Display Screen Protection-Corning Gorilla Glass SR+-

Camera

Primary Camera12MP (f/1.8, 1/2.5No-
Secondary Camera24MP--
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panorama--
Video[email protected]--

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)49 x 46 x 12.9 mm (1.93 x 1.81 x 0.51 in)-
Body Weight159 g (5.61 oz)57 g (2.01 oz)-
Body ColorBlack, Aurora White, Ruby RedSilver-

Launch

Launch AnnouncementMay, 2018March, 2017-
Launch DateRelease May 19th, 2018Release April, 2017-

Platform

Operating SystemAndroid 8.1 OreoTizen-based Wearable Platform 2.3.2-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Dual-core 1.0 GHz-
GPUMali-G72 MP3--
ChipsetMediatek MT6771 Helio P60Exynos 7270-

Memory

Memory Internal64GB, 128GB4 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)No-
Ram4GB, 6GB 768 MB RAM-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-Removable Li-Ion battery-
Battery Capacity3425 mAh 380 mAh battery-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, WAV Ringtones-
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micNo-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotWi-Fi 802.11 b/g/n-
Bluetooth5.0, A2DP, LEv4.2-
USBmicroUSB 2.0, USB On-The-GoNo-
GPSYes, with A-GPS, GLONASSYes, with A-GPS, GLONASS-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compassAccelerometer, gyro, heart rate, barometer-
MessagingSMS(threaded view), MMS, Email, Push EmailSMS(threaded view), Email, IM-
BrowserHTML5No-
JavaNoNo-

Other

Made ByChinaKorea-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorWPC wireless charging, S-Voice natural language commands and dictation, MP3/M4A/AAC/WAV player, Photo viewer, Voice memo/dial/commands-