Karbonn S1 Titanium vs ZTE V821
Karbonn S1 Titanium
ZTE V821
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Network
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2G networkGSM 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 announced2013-12011-6
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Status2013-12011-6
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height134.6 mm116 mm
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Width66 mm56.5 mm
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Thickness9.3 mm11.8 mm
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Weight120 g
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Keyboard-QWERTY
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ColorsBlack, WhiteBlack
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Display
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Display typeIPS LCD capacitive touchscreenTFT resistive touchscreen
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Physical size4.5 inches-
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Resolution540 x 960 pixels320 x 240 pixels
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Pixel density245 ppi-
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Display colors1677721666560
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Hardware
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CPUQuad-core 1.2 GHz416 MHz
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Chipset-Mediatek MT6516
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Memory RAM1 GB-
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Internal storage4 GB256 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, v4.1 (Jelly Bean)Android OS, v2.2 (Froyo)
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Main camera
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Main camera5 MP2 MP
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Primary camera resolution2592 x 1944 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flash-
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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, MP3, WAV ringtonesVibration; MP3 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
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WLAN WiFi HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv2.1
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Bluetooth A2DP-Yes
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GPSYes, with A-GPSYes, 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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Messaging Push EmailPush Email-
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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 capacity1600 mAh-
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Talk time4 h-
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Standby time200 h-
