BLU Studio J8 LTE vs Microsoft Lumia 640 XL
BLU Studio J8 LTE
Microsoft Lumia 640 XL
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 1700(AWS), 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 7(2600), 12(700), 17(700), 28(700)-
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed11.5 Mbps5.76 Mbps
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2017-72015-3
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Status2017-72015-3
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Design
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SIMDual SIM (Nano-SIM/ Micro-SIM)Micro-SIM
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Height155.7 mm157.9 mm
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Width77.6 mm81.5 mm
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Thickness8.9 mm9 mm
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Weight183 g171 g
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ColorsBlack, Gold, Rose Gold, SilverBlack, Glossy white, Matte cyan, Matte white, Orange
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.5 inches5.7 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density267 ppi259 ppi
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Display colors1677721616777216
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MultitouchYes-
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A53Quad-core 1.2 GHz ARM Cortex-A7
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ChipsetMediatek MT6737Qualcomm Snapdragon 400
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GPUMali-T720Adreno 305
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Memory RAM1, 2 GB1 GB
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Internal storage8, 16 GB8 GB
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Memory cardmicroSDmicroSD
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Memory card max64 GB128 GB
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OS
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OSAndroid 7.0 (Nougat)Microsoft Windows Phone 8.1 with Lumia Denim
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Main camera
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Main camera8 MP13 MP
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Primary camera resolution-4128 x 3096 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera optics-Carl Zeiss optics
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, face detection, touch focus1/3'' sensor size
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Selfie camera
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FlashLED flash-
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Selfie camera5 MP5 MP
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Selfie camera video-1080p
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Sound
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3.5mm jackYesYes
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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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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN DLNA-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB hostYes-
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Bluetoothv4.1v4.0
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GPS Navigator-Beidou
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush EmailPush Email
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JavaNoNo
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SensorsFingerprint (rear-mounted), accelerometer, proximityAccelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2500 mAh3000 mAh
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Battery removableNon-removable-
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Talk time 2G22 h31 h 20 min
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Talk time 3G16 h23 h 40 min
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Standby time 2G750 h936 h
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Standby time 3G625 h936 h
