Celkon CT 1 vs Lenovo S939
Celkon CT 1
Lenovo S939
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 2100
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HSDPA speed-HSDPA
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HSUPA speed-HSUPA
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2012-82014-5
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Status2012-82014-5
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Design
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SIMNoDual SIM (Mini-SIM, dual stand-by)
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Height196 mm159 mm
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Width114 mm84 mm
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Thickness14 mm8.7 mm
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Weight171.5 g
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ColorsBlack, RedDark Gray
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size7.0 inches6.0 inches
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Resolution480 x 800 pixels720 x 1280 pixels
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Pixel density133 ppi245 ppi
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Display colors-16777216
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Hardware
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CPU1.2 GHz ARM Cortex-A81.7 GHz ARM Cortex-A7 Octa-core
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Chipset-Mediatek MT6592
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GPU-Mali-450MP4
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Memory RAM-1 GB
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Internal storage-8 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.0.4 (Ice Cream Sandwich)Android OS, v4.2 (Jelly Bean)
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Main camera
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Main camera2 MP8 MP
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Primary camera resolution1600 x 1200 pixels3264 x 2448 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraYes-
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Selfie camera1.6 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsN/AVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11gWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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USBYesmicroUSB 2.0
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BluetoothYes
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InfraredYes-
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GPSYesYes, with A-GPS
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush EmailPush Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-Ion-
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Battery capacity3000 mAh3000 mAh
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Battery removableNon-removable-
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Talk time3 h-
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Standby time100 h-
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