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General

NameSymphony B12Vivo X21 UD-
Model B12X21 UD-
PriceTk. 999TK. 56,900-

Network

Network TypeGSMGSM / CDMA / HSPA / LTE-
Network 2GGSMGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA-
Network 3G-HSDPA 850 / 900 / 1900 / 2100-
Network 4G-LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)-
Network Speed-HSPA, LTE-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display Type TFT QQVGA Super AMOLED capacitive touchscreen, 16M Colors-
Display Size 1.77"6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio-
Display Resolution QQVGA (128*160)1080 x 2280 pixels-
Display Multitouch-Yes - Funtouch OS 4.0-
Display Density-402 ppi density-

Camera

Primary Camera 0.08 MP12MP (f/1.8, 1/2.5`, 1.4 µm, Dual Pixel PDAF) + 5MP (f/2.4), phase detection autofocus, LED Flash-
Secondary Camera-12MP, f/2.0, 1080p-
Camera Features-Geo-tagging, Touch focus, Face detection, HDR, panorama-
Video Yes[email protected]-

Body

Body Dimensionsinfo not available154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)-
Body Weightinfo not available156.2 g (5.50 oz)-
Body Buildinfo not availableFront glass, aluminum body-
Body ColorBlackBlack, Aurora White, Ruby Red-

Launch

Launch AnnouncementAvailableMarch, 2018-
Launch DateAvailableRelease March 28th, 2018-

Platform

Operating SystemNo OSAndroid 8.1 Oreo-
CPU-Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)-
GPU-Adreno 512-
Chipset-Qualcomm SDM660 Snapdragon 660-

Memory

Memory Internal24 MB ROM128GB-
Memory External up to 8 GBmicroSD, up to 256GB (uses SIM 2 slot)-
Ram32 MB RAM6GB -

Battery

Battery Type Li-ion Battery Non-removable Li-Ion Battery-
Battery Capacity 800 mAh Battery3200 mAh -
Battery Stand by 200 hrs (depend on phone setting, network)--
Battery Talk time 4 hrs (depend on phone setting, network)--

Multimedia

Fm RadioYesYes-

Sound

Audio Vibration, MP3, WAV RingtonesVibration, MP3, WAV Ringtones-
LoudspeakerYesYes-
3.5mm JackYesYes - 32-bit/192kHz audio - Active noise cancellation with dedicated mic-

Connectivity

WiFiYesWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot-
BluetoothYes5.0, A2DP, LE-
USBYesmicroUSB 2.0, USB On-The-Go-
GPSYesYes, with A-GPS, GLONASS-

Features

Sensors-Fingerprint under display, accelerometer, proximity, compass-
MessagingYesSMS(threaded view), MMS, Email, Push Email-
Browser-HTML5-
JavaYesNo-

Other

Made ByChinaChina-
Other Features Speaker Size : 16 x 16
Other Features : Torchlight
Fast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editor-