Allview V1 Viper i4G vs Ulefone Gemini Pro
Allview V1 Viper i4G
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 900, 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 speed11.5 Mbps-
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE, 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 announced20152017
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Status20152017
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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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Height137.3 mm155 mm
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Width68.3 mm76.9 mm
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Thickness9.6 mm8.45 mm
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Weight149.9 g181 g
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ColorsBlack, WhiteBlack, Red
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Display
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Display typeTFT capacitive touchscreenIPS capacitive touchscreen
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Physical size4.7 inches5.5 inches
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Resolution480 x 854 pixels1080 x 1920 pixels
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Pixel density208 ppi401 ppi
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Display colors-16777216
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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 1.3 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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ChipsetMediatek MT6582MediaTek Helio X27(MT6797X)
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GPUMali-400Mali-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 max32 GB128 GB
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OS
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OSAndroid OS, v4.4.2 (KitKat)Android OS, v7.1.1 Nougat
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Main camera
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Camera type-Dual
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Main camera5 MP8 MP, f/2.0 , 3.5 mm, 1.133 µm
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13 MP
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Primary camera resolution2592 х 1944 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 featuresGeo-tagging, HDR, face/smile detection, touch focusAutofocus, 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 camera2 MP8 MP, 1.127 µm
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Selfie camera resolution-3264 x 2448 pixels
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Selfie camera video-720p@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 Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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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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Bluetooth EDRYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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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 MailPush Mail-
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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-PoLi-Po
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Battery capacity1800 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 time8 h 20 min-
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Standby time180 h-
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Standby time 2G-450 h
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Standby time 3G-450 h
