Microsoft Lumia 640 Dual SIM vs alcatel Idol 4s Windows
Microsoft Lumia 640 Dual SIM
alcatel Idol 4s Windows
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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, 1900, 2100HSDPA 850, 1700(AWS), 1900, 2100
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4G network-LTE frequency band 2(1900), 4(1700/2100), 12(700)
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speed-LTE, 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 announced2015-32016
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Status2015-42016
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Nano-SIM
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Height141.3 mm153.9 mm
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Width72.2 mm75.4 mm
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Thickness8.8 mm7 mm
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Weight145 g152 g
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ColorsGlossy cyan, Matte black, Orange, WhiteHalo Gold
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Display
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Display typeIPS LCD capacitive touchscreenAMOLED capacitive touchscreen
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Physical size5.0 inches5.5 inches
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Resolution720 x 1280 pixels1080 x 1920 pixels
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Pixel density294 ppi401 ppi
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Display colors1677721616777216
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Protection-Asahi Dragontrail Glass
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Multitouch-Yes, max 10 fingers
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Hardware
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CPU-Quad-core
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CPUQuad-core 1.2 GHz ARM Cortex-A7Dual-core 2.15 GHz Kryo
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CPU(second)dual-core 1.6 GHz Kryo
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ChipsetQualcomm Snapdragon 400Qualcomm MSM8996 Snapdragon 820
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GPUAdreno 305Adreno 530
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Memory RAM1 GB4 GB
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Internal storage8 GB64 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB256 GB
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OS
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OSMicrosoft Windows Phone 8.1 with Lumia DenimMicrosoft Windows 10
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Main camera
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Main camera8 MP21 MP
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Primary camera resolution3264 x 2448 pixels-
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Primary camera video1080p@30fps2160p@30fps
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Primary camera Autofocusautofocusphase detection autofocus
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Primary camera flashLED flashdual-LED (dual tone) flash
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Camera features1/4'' sensor sizeGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Flash-LED flash
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Selfie camera1 MP8 MP
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Selfie camera video720p1080p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes, with stereo speakers
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio-No
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Radio FMFM 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, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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WLAN DLNAYes-
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USBmicroUSB 2.0Type-C reversible connector
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Bluetoothv4.0v4.1
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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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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JavaNoNo
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SensorsAccelerometer, compass, proximityAccelerometer, compass, gyro, 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 mAh3000 mAh
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Battery removable-Non-removable
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Talk time 2G27 h 30 min-
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Talk time 3G20 h 30 min13 h 20 min
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Standby time 2G840 h-
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Standby time 3G840 h420 h
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