Samsung Galaxy Tab 7.7 LTE I815 vs ZTE X990D
Samsung Galaxy Tab 7.7 LTE I815
ZTE X990D
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Network
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2G networkCDMA 800, 1900GSM 900, 1800
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3G networkCDMA2000 1xEV-DO-
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4G networkLTE 700 MHz Class 13-
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EV-DO speed3.1 Mbps-
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LTE speedLTE-
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GPRSYes
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EDGE
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Availability
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Oficially announced2012-12014-12
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Status20122014-12
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height196.6 mm107 mm
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Width133.1 mm61 mm
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Thickness7.9 mm12 mm
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Weight340.2 g90 g
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Keyboard-QWERTY
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ColorsMetallic Gray and WhiteWhite
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Display
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Display typeSuper AMOLED Plus capacitive touchscreenTFT resistive touchscreen
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Physical size7.7 inches2.5 inches
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Resolution800 x 1280 pixels320 x 240 pixels
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Pixel density196 ppi160 ppi
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Display colors16777216262144
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Hardware
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CPUDual-core 1.4 GHz
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ChipsetExynos 4210-
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GPUMali-400-
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Memory RAM1 GB-
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Internal storage16, 32 GB-
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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, v3.2 (Honeycomb)-
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Main camera
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Main camera3.15 MP2 MP
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Primary camera resolution2048 x 1536 pixels1600 x 1200 pixels
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Primary camera video720pvideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Selfie camera
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Secondary camera-No
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Selfie camera2 MP
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Sound
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3.5mm jackYesNo
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LoudspeakerYes, with stereo speakersYes
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NotificationsN/AVibration; MP3, ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio with RDS
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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USB2.0microUSB 2.0
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Bluetoothv3.0v2.0
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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 IMIMIM
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Messaging Push EmailPush Mail-
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WAP-WAP 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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HTMLHTML5Yes
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Adobe FlashYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity5100 mAh-
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Battery removableNon-removable-
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Talk time--
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Talk time 3G13 h-
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Standby time--
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Standby time 3G392 h-
