ZTE V821 vs ZTE X990D
ZTE V821
ZTE X990D
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2011-62014-12
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Status2011-62014-12
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height116 mm107 mm
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Width56.5 mm61 mm
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Thickness11.8 mm12 mm
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Weight120 g90 g
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KeyboardQWERTYQWERTY
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ColorsBlackWhite
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Display
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Display typeTFT resistive touchscreenTFT resistive touchscreen
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Physical size-2.5 inches
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Resolution320 x 240 pixels320 x 240 pixels
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Pixel density-160 ppi
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Display colors66560262144
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Hardware
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CPU416 MHz
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ChipsetMediatek MT6516-
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Internal storage256 MB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB8 GB
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OS
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OSAndroid OS, v2.2 (Froyo)-
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Main camera
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Main camera2 MP2 MP
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Primary camera resolution1600 x 1200 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Primary camera Autofocusautofocus-
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration; MP3 ringtonesVibration; MP3, ringtones
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Multimedia
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Radio FMFM radioStereo FM radio with RDS
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.1v2.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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WAPWAP 2.0/xHTMLWAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorYes
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Java MIDP-MIDP 2.0
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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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Talk time--
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Standby time--