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General

NameAllview V3 ViperVivo Y51s-
ModelV3 ViperY51s-
PriceTK. 21,990Tk 25,000-

Network

Network TypeGSM / HSPA / LTEGSM / CDMA / HSPA / LTE / 5G-
Network 2GGSM: 850 / 900 / 1800 / 1900 MHzGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 & TD-SCDMA-
Network 3GUMTS : 850 / 900 / 2100 MHzHSDPA 850 / 900 / 1700(AWS) / 2100-
Network 4GLTE : 800 / 850 / 900 / 1800 / 2100 / 2600 MHz, LTE-TDD : 1900 MHz (Band 39), LTE-TDD : 2500 MHz (Band 41) LTE-TDD : 2300 MHz (Band 40) LTE-TDD : 2600 MHz (Band 38)1, 3, 4, 5, 8, 34, 38, 39, 40, 41-
Network 5G-1, 41, 78 SA/NSA-
Network Speed-HSPA 42.2/5.76 Mbps, LTE-A, 5G (3.6+ Gbps DL)-
Network GPRS-Yes-
Network EDGE-Yes-

Display

Display TypeIPS LCD capacitive touchscreen, 16M colorsIPS LCD capacitive touchscreen, 16M colors-
Display Size5.5 inches, 78.1 cm2 (~73.3% screen-to-body ratio)6.53 inches, 104.7 cm2 (~84.4% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio (~293 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)-
Display Multitouch-Yes-

Camera

Primary Camera13MP, AF48MP, f/1.8, 25mm (wide), 1/2.0-
Secondary Camera13Megapixels with LED Flash8MP, f/2.0, (wide)-
Camera FeaturesAutofocus Continuous shooting Digital image stabilization Digital zoom Dual camera Exposure compensation Face detection Geotagging HDR ISO settings Manual focus Optical Stabilization (OIS) Optical zoom Panorama Scene mode Self-timer Touch focus White balance settingsLED flash, HDR, panorama HDR-
Video[email protected][email protected], [email protected]; gyro-EIS [email protected]-

Body

Body Dimensions148.3 x 71.8 x 8.1 mm (5.84 x 2.83 x 0.32 in)162 x 76.6 x 8.5 mm (6.38 x 3.02 x 0.33 in)-
Body Weight143.6 g (5.08 oz)190 g (6.70 oz)-
Body Color-Black, Blue, White-

Launch

Launch AnnouncementJanuary, 20182020, July 24-
Launch DateReleased February, 2018Released 2020, July 29-

Platform

CPUQuad-core 1.3 GHz Cortex-A53Octa-core (2x2.0 GHz Cortex-A77 & 6x1.8 GHz Cortex-A76)-
GPUMali-T720MP2Mali-G76-
ChipsetMediatek MT6737 (28 nm)Exynos 880-
Operating System-Android 10, Funtouch 10.5-

Memory

Memory Internal32GB128GB UFS 2.1-
Memory ExternalSupport up to 256GB (Uses SIM 2 Slot)No-
Ram3GB6GB -

Battery

Battery TypeNon-removable Li-PoNon-removable Li-Po-
Battery Capacity3000 mAh 4500 mAh -
Charging -Fast charging 18W-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3 ringtones, WAVVibration, MP3, WAV ringtones-
LoudspeakerYesYes-
3.5mm JackYesYes-

Connectivity

WiFiWi-Fi 802.11 b/g/n, hotspot, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot-
Bluetooth4.2, A2DP, LE5.0, A2DP, LE, aptX HD-
USBmicroUSB 2.0microUSB 2.0, USB On-The-Go-
GPSYes, with A-GPSYes, with A-GPS, GLONASS, BDS, GALILEO-

Features

SensorsFingerprint - rear-mounted, accelerometer, proximity, compassFingerprint -side-mounted, accelerometer, proximity, compass-
MessagingSMS, MMS, Email, Push Mail, IM, HangoutsSMS(threaded view), MMS, Email, Push Email, IM-
BrowserHTML5HTML5-
Java-No-

Other

Other FeaturesAllview V3 Viper Handset 3,000 mAh Battery, Power Adapter Micro USB Data Cable, Screen Protector Headset Sim Removal Tool Protection, Cover Flyer Bitdefender Warranty Card User ManualV2002A-
Made By-China-