BLU X Link vs vivo X20
BLU X Link
vivo X20
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800; CDMA 800 & TD-SCDMA
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3G network-HSDPA 850, 900, 1900, 2100
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4G network-LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSPA speed-HSPA
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LTE speed-LTE
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GPRSYesYes
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EDGENoYes
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Availability
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Oficially announced2018-32017-9
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Status2018-52017-10
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Design
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BuildAluminum body-
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SIMMini-SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
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Height45.8 mm155.9 mm
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Width54 mm75.2 mm
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Thickness13.9 mm7.2 mm
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Weight65 g159 g
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WaterproofIP54-
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Dust proofIP54-
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ColorsBlack, Rose Gold, SilverBlack/Gold, Gold, Matte Black, Rose gold
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size1.1 inches6.01 inches
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Resolution240 x 240 pixels1080 x 2160 pixels
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Pixel density309 ppi402 ppi
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Display colors1677721616777216
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPU256 MHz2.2 GHz Quad-core Kryo 260
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CPU(second)quad-core 1.8 GHz Kryo 260
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ChipsetMediatek MT2502Qualcomm MSM8956 Plus Snapdragon 660
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Internal storage4 MB64 GB
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Memory RAM4 MB4 GB
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Memory card-microSD(uses second SIM slot)
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Memory card max-256 GB
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBNomicroUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.0v5.0
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Bluetooth A2DP-Yes
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bluetooth LE-Yes
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging Push Email-Push Email
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JavaNoNo
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SensorsAccelerometer, heart rateFingerprint (rear-mounted), accelerometer, compass, gyro, proximity
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Browser
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HTML-HTML5
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BrowserNo-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity320 mAh3250 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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OS
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OS-Android 7.1.1 (Nougat)
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Main camera
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Camera type-Dual
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Main camera12 MP, f/1.8
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5 MP
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Primary camera video-1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera12 MP, f/2.0