Celkon C820 vs Lenovo P770
Celkon C820
Lenovo P770
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Network
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2G networkGSM 900, 1800GSM 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 2100
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HSDPA speedHSDPAHSDPA
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HSUPA speedHSUPAHSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122012-11
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Status2012-11
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Design
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SIMDual SIMDual SIM (Mini-SIM, dual stand-by)
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Height210 mm133 mm
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Width131 mm67 mm
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Thickness10.5 mm11.9 mm
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Weight161 g
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ColorsBlack, SilverBlack
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Display
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Display typeCapacitive touchscreenIPS LCD capacitive touchscreen
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Physical size8.0 inches4.5 inches
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Resolution800 x 1280 pixels540 x 960 pixels
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Pixel density189 ppi245 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1 GHzDual-core 1.2 GHz ARM Cortex-A9
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Chipset-Mediatek MT6577
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GPU-PowerVR SGX531u
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Memory RAM512 MB1 GB
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Internal storage4 GB4 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Memory card included-8 GB
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)Android OS, v4.1 (Jelly Bean)
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Main camera
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Main camera3.15 MP5 MP
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Primary camera resolution2048 x 1536 pixels2592 x 1944 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 camera-VGA camera
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; 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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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesYes
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GPSYesYes, with A-GPS
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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 Email-Push 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-IonLi-Ion
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Battery capacity4000 mAh3500 mAh
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Battery removableNon-removable-
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Talk time14 h29 h
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Standby time500 h644 h
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