Celkon A97i vs ZTE V821
Celkon A97i
ZTE V821
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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 2100-
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HSDPA speedHSDPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2012-82011-6
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Status2012-82011-6
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height124 mm116 mm
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Width64 mm56.5 mm
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Thickness11 mm11.8 mm
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Weight139 g120 g
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Keyboard-QWERTY
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ColorsBlack, WhiteBlack
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Display
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Display typeTFT touchscreenTFT resistive touchscreen
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Physical size4.0 inches-
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Resolution480 x 800 pixels320 x 240 pixels
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Pixel density233 ppi-
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Display colors-66560
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Hardware
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CPU1 GHz ARM Cortex-A9416 MHz
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Chipset-Mediatek MT6516
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Internal storage-256 MB
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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 (Ice Cream Sandwich)Android OS, v2.2 (Froyo)
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Main camera
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Main camera8 MP2 MP
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Primary camera resolution3264 x 2448 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Selfie camera
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Secondary cameraYesNo
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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 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-FiWi-Fi 802.11b, 802.11g
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WLAN WiFi Hotspot-Yes
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USBYesmicroUSB 2.0
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BluetoothYesv2.1
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Bluetooth A2DP-Yes
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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 IMIM-
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WAP-WAP 2.0/xHTML
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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 capacity1500 mAh-
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Talk time9 h 10 min-
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Standby time350 h-
