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Name | Symphony B12 | Vivo X21 UD | - |
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Model | B12 | X21 UD | - |
Price | Tk. 999 | TK. 56,900 | - |
Network Type | GSM | GSM / CDMA / HSPA / LTE | - |
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Network 2G | GSM | GSM 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 GPRS | Yes | Yes | - |
Network EDGE | Yes | Yes | - |
Display Type | TFT QQVGA | Super AMOLED capacitive touchscreen, 16M Colors | - |
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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 | - |
Primary Camera | 0.08 MP | 12MP (f/1.8, 1/2.5`, 1.4 µm, Dual Pixel PDAF) + 5MP (f/2.4), phase detection autofocus, LED Flash | - |
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Secondary Camera | - | 12MP, f/2.0, 1080p | - |
Camera Features | - | Geo-tagging, Touch focus, Face detection, HDR, panorama | - |
Video | Yes | [email protected] | - |
Body Dimensions | info not available | 154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) | - |
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Body Weight | info not available | 156.2 g (5.50 oz) | - |
Body Build | info not available | Front glass, aluminum body | - |
Body Color | Black | Black, Aurora White, Ruby Red | - |
Launch Announcement | Available | March, 2018 | - |
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Launch Date | Available | Release March 28th, 2018 | - |
Operating System | No OS | Android 8.1 Oreo | - |
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CPU | - | Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) | - |
GPU | - | Adreno 512 | - |
Chipset | - | Qualcomm SDM660 Snapdragon 660 | - |
Memory Internal | 24 MB ROM | 128GB | - |
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Memory External | up to 8 GB | microSD, up to 256GB (uses SIM 2 slot) | - |
Ram | 32 MB RAM | 6GB | - |
Battery Type | Li-ion Battery | Non-removable Li-Ion Battery | - |
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Battery Capacity | 800 mAh Battery | 3200 mAh | - |
Battery Stand by | 200 hrs (depend on phone setting, network) | - | - |
Battery Talk time | 4 hrs (depend on phone setting, network) | - | - |
Fm Radio | Yes | Yes | - |
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Audio | Vibration, MP3, WAV Ringtones | Vibration, MP3, WAV Ringtones | - |
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Loudspeaker | Yes | Yes | - |
3.5mm Jack | Yes | Yes - 32-bit/192kHz audio - Active noise cancellation with dedicated mic | - |
WiFi | Yes | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot | - |
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Bluetooth | Yes | 5.0, A2DP, LE | - |
USB | Yes | microUSB 2.0, USB On-The-Go | - |
GPS | Yes | Yes, with A-GPS, GLONASS | - |
Sensors | - | Fingerprint under display, accelerometer, proximity, compass | - |
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Messaging | Yes | SMS(threaded view), MMS, Email, Push Email | - |
Browser | - | HTML5 | - |
Java | Yes | No | - |
Made By | China | China | - |
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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 | - |