Samsung Epic 4G vs ZTE X990
Samsung Epic 4G
ZTE X990
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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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HSDPA speedHSDPA-
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EV-DO speed3.1 Mbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2010-92010-3
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Oficially announced2010-62010-3
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Design
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SIMMini-SIMMini-SIM
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Height124 mm107 mm
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Width65 mm61 mm
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Thickness14 mm12 mm
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Weight155 g90 g
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KeyboardQWERTYQWERTY
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ColorsBlackWhite
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Display
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Display typeSuper AMOLED capacitive touchscreenTFT resistive touchscreen
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Physical size4.0 inches2.5 inches
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Resolution480 x 800 pixels320 x 240 pixels
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Pixel density233 ppi160 ppi
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Display colors16777216262144
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Hardware
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CPU1 GHz ARM Cortex-A8
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ChipsetHummingbird-
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GPUPowerVR SGX540-
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Memory ROM512 MB-
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Memory RAM512 MB-
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Internal storage-5 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, v2.1 (Eclair)Microsoft Windows Mobile 6.5 Professional
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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 video720p@30fpsvideo
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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 cameraVGA cameraNo
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Sound
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3.5mm jackYesNo
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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 FMStereo FM radio with RDSStereo 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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WLAN wimaxYes-
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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 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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HTMLYesYes
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Adobe FlashAdobe Flash Lite-
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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 time5 h 30 min8 h
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Standby time300 h480 h
