Microsoft Lumia 640 LTE Dual SIM vs NIU Niutek 3.5D2
Microsoft Lumia 640 LTE Dual SIM
NIU Niutek 3.5D2
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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, 900, 1700, 1900, 2100HSDPA 850, 1900
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HSDPA speed42.2 Mbps21.1 Mbps
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HSUPA speed5.76 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 announced2015-32014-8
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Status2015-42014-10
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM (Mini-SIM/ Micro-SIM)
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Height141.3 mm116 mm
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Width72.2 mm61 mm
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Thickness8.8 mm11.5 mm
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Weight145 g98 g
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ColorsGlossy cyan, Matte black, Orange, WhiteBlack, Blue, Green, Red, White
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Display
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Display typeIPS LCD capacitive touchscreenTFT capacitive touchscreen
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Physical size5.0 inches3.5 inches
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Resolution720 x 1280 pixels320 x 480 pixels
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Pixel density294 ppi165 ppi
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Display colors16777216262144
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7Dual-core 1 GHz ARM Cortex-A7
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ChipsetQualcomm Snapdragon 400Mediatek MT6572M
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GPUAdreno 305Mali-400
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Memory ROM-2 GB
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Memory RAM1 GB256 MB
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Internal storage8 GB-
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Memory cardmicroSDmicroSD
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Memory card max128 GB64 GB
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OS
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OSMicrosoft Windows Phone 8.1 with Lumia DenimAndroid OS, v4.2 (Jelly Bean)
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Main camera
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Main camera8 MP2 MP
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Primary camera resolution3264 x 2448 pixels1600 x 1200 pixels
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Primary camera video1080p@30fps480p@30fps
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Primary camera Autofocusautofocus-
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Primary camera flashLED flashLED flash
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Camera features1/4'' sensor sizeFace detection, panorama
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Selfie camera
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Secondary camera-VGA camera
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Selfie camera1 MP
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Selfie camera video720p-
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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 radioStereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v3.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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GPS NavigatorBeidou-
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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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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer, compass, proximityAccelerometer
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2500 mAh1200 mAh
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Talk time 2G26 h 30 min8 h
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Talk time 3G17 h 30 min6 h
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Standby time 2G864 h400 h
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Standby time 3G864 h320 h
