Microsoft Lumia 640 LTE Dual SIM vs Vertex Impress Grip
Microsoft Lumia 640 LTE Dual SIM
Vertex Impress Grip
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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 900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 7(2600), 18(800)
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE, Cat4, 150 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2015-32017
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Status2015-42017
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM (Micro-SIM)
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Height141.3 mm-
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Width72.2 mm-
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Thickness8.8 mm-
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Weight145 g-
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ColorsGlossy cyan, Matte black, Orange, WhiteBlack
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Display
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Display typeIPS LCD capacitive touchscreenIPS capacitive touchscreen
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Physical size5.0 inches5 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density294 ppi294 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass
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Multitouch-Yes
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7Quad-core 1.4 GHz Cortex-A53
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ChipsetQualcomm Snapdragon 400Qualcomm Snapdragon 410 MSM8916
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GPUAdreno 305Qualcomm Adreno 306
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Memory RAM1 GB2 GB
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Internal storage8 GB16 GB
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Memory cardmicroSDmicroSD, microSDHC
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Memory card max128 GB-
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OS
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OSMicrosoft Windows Phone 8.1 with Lumia DenimAndroid 7.0 Nougat
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Main camera
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Main camera8 MP13 MP
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Primary camera resolution3264 x 2448 pixels4160 x 3120 pixels
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Primary camera video1080p@30fps720p@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 sizeAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, exposure compensation, self-timer, scene mode
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Selfie camera
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Selfie camera1 MP5 MP
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Selfie camera video720p480p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; 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 Direct-Yes
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v4.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GPS NavigatorBeidou-
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Features
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Messaging SMSSMS(threaded view)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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JavaNo-
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SensorsAccelerometer, compass, proximityAccelerometr, compass, light, proximity
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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 mAh4400 mAh
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Talk time 2G26 h 30 min-
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Talk time 3G17 h 30 min-
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Standby time 2G864 h-
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Standby time 3G864 h-
