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General

NameVivo X21iSamsung Gear Sport-
ModelX21iGear Sport-
Price-Tk. 20,990-

Network

Network TypeGSM / CDMA / HSPA / LTENo cellular connectivity-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA--
Network 3GHSDPA 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)--
Network SpeedHSPA, LTE--
Network GPRSYes--
Network EDGEYes--

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 ratio1.2 inches (~24.3% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio360 x 360 pixels-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density424 ppi pixel density-
Display Screen Protection-Corning Gorilla Glass 3-

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)44.6 x 42.9 x 11.6 mm (1.76 x 1.69 x 0.46 in)-
Body Weight159 g (5.61 oz)50 g (1.76 oz)-
Body ColorBlack, Aurora White, Ruby RedBlack, Blue-

Launch

Launch AnnouncementMay, 2018August, 2017-
Launch DateRelease May 19th, 2018Release August, 2017-

Platform

Operating SystemAndroid 8.1 OreoTizen-based wearable platform-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Dual-core 1.0 GHz Cortex-A7-
GPUMali-G72 MP3Mali-400MP2-
ChipsetMediatek MT6771 Helio P60Exynos 3250 Dual-

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 3000 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, LE4.2, A2DP, LE-
USBmicroUSB 2.0, USB On-The-GoNo-
GPSYes, with A-GPS, GLONASSYes, GLONASS, BDS-

Features

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

Other

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