Microsoft Lumia 640 Dual SIM vs Ulefone Gemini Pro
Microsoft Lumia 640 Dual SIM
Ulefone Gemini Pro
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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, 900, 1900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800); LTE-TDD 1900, 2300, 2500, 2600
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speed-LTE, Cat6 301 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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Build-Metal
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM (Nano-SIM/Nano-SIM(microSD))
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Height141.3 mm155 mm
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Width72.2 mm76.9 mm
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Thickness8.8 mm8.45 mm
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Weight145 g181 g
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ColorsGlossy cyan, Matte black, Orange, WhiteBlack, Red
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Display
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Display typeIPS LCD capacitive touchscreenIPS 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-Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3, LTPS(Low temperature PolySilicon)
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Multitouch-Yes
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Hardware
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CPU-Deca-core
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CPUQuad-core 1.2 GHz ARM Cortex-A7Dual-core 2.6 GHz Cortex-A72
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CPU(second)quad-core 2.0 GHz Cortex-A53
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CPU(third)Quad-core 1.6 GHz Cortex-A53
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ChipsetQualcomm Snapdragon 400MediaTek Helio X27(MT6797X)
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GPUAdreno 305Mali-T880 MP4
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Internal storage8 GB64 GB
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Memory RAM1 GB4 GB
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Memory cardmicroSDmicroSD, microSDHC, microSDXC
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Memory card max128 GB128 GB
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OS
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OSMicrosoft Windows Phone 8.1 with Lumia DenimAndroid OS, v7.1.1 Nougat
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Main camera
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Camera type-Dual
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Main camera8 MP8 MP, f/2.0 , 3.5 mm, 1.133 µm
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13 MP
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Primary camera resolution3264 x 2448 pixels4160 x 3120 pixels
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Primary camera video1080p@30fps2160p@30fps
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Primary camera Autofocusautofocus-
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Primary camera flashLED flashquad-LED flash
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Camera features1/4'' sensor sizeAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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Selfie camera
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Selfie camera1 MP8 MP, 1.127 µm
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Selfie camera resolution-3264 x 2448 pixels
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Selfie camera video720p720p@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 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5 GHz, 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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USB On-The-Go-Yes
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Bluetoothv4.0v4.1
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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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Beidou-Yes
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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, proximityAccelerometer, compass, fingerprint, gyroscope, light, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity2500 mAh3680 mAh
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Battery removable-Removable
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Fast battery charging-MediaTek Pump Express Plus 2.0
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Talk time 2G27 h 30 min-
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Talk time 3G20 h 30 min-
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Standby time 2G840 h450 h
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Standby time 3G840 h450 h
