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General

NameVivo X21iSamsung Galaxy Watch Active 2-
ModelX21i Galaxy Watch Active 2 (SM-R830)-
Price-Tk. 42,000-

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-
Network 3GHSDPA 850 / 900 / 2100 HSDPA 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-
Network SpeedHSPA, LTEHSPA, LTE-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M Colors Super AMOLED capacitive touchscreen, 16M Colors -
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio 1.4 inches, 6.3 cm2 (~40.5% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio 360 x 360 pixels, 1:1 ratio-
Display MultitouchYes - Funtouch OS 4.0--
Display Density402 ppi density 364 ppi density-
Display Screen Protection- Corning Gorilla Glass DX+-

Camera

Primary Camera12MP (f/1.8, 1/2.5No Camera-
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 x 44 x 10.9 mm (1.73 x 1.73 x 0.43 in)-
Body Weight159 g (5.61 oz) 44 g (1.55 oz)-
Body ColorBlack, Aurora White, Ruby Red Black, Silver, Gold-
Body Build- Front glass, Stainless Steel 316L frame-

Launch

Launch AnnouncementMay, 2018August, 2019 -
Launch DateRelease May 19th, 2018Release August ,2019-

Platform

Operating SystemAndroid 8.1 Oreo Tizen-based wearable OS -
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Dual-core 1.15 GHz Cortex-A53-
GPUMali-G72 MP3 Mali-T720-
ChipsetMediatek MT6771 Helio P60 Exynos 9110-

Memory

Memory Internal64GB, 128GB 4 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)No-
Ram4GB, 6GB 768 MB, 1.5 GB-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Ion Battery -
Battery Capacity3425 mAh 340 mAh Battery-
Battery Charging- Qi Wireless Charging-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV Ringtones--
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated mic No-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot Wi-Fi 802.11 b/g/n-
Bluetooth5.0, A2DP, LE 5.0, A2DP, LE-
USBmicroUSB 2.0, USB On-The-Go No-
GPSYes, with A-GPS, GLONASS Yes, with A-GPS-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compass Accelerometer, gyro, heart rate, barometer-
MessagingSMS(threaded view), MMS, Email, Push Email--
BrowserHTML5--
JavaNo--

Other

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