Samsung Galaxy S II Epic 4G Touch vs ZTE Optik
Samsung Galaxy S II Epic 4G Touch
ZTE Optik
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Network
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2G networkCDMA 800, 1900CDMA 800, 1900
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3G networkCDMA2000 1xEV-DOCDMA2000 1xEV-DO
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EV-DO speed3.1 Mbps3.1 Mbps
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GPRS
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EDGE
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Availability
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Oficially announced2011-82012-2
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Status2011-92012-2
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Design
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SIMMini-SIMMini-SIM
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Height130 mm193 mm
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Width70 mm119.4 mm
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Thickness10 mm13.2 mm
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Weight130 g400 g
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ColorsBlack, WhiteBlack
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Display
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Display typeSuper AMOLED Plus capacitive touchscreenTFT capacitive touchscreen
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Physical size4.52 inches7.0 inches
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Resolution480 x 800 pixels800 x 1280 pixels
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Pixel density206 ppi216 ppi
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Display colors16777216-
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Hardware
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CPUDual-core 1.2 GHzDual-core 1.2 GHz Scorpion
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ChipsetExynosQualcomm MSM8660 Snapdragon
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GPUMali-400-
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Memory RAM1 GB1 GB
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Internal storage16 GB16 GB
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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, v2.3.4 (Gingerbread)Android OS, v3.2 (Honeycomb)
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Main camera
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Main camera8 MP5 MP
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Primary camera resolution3264 x 2448 pixels2592 x 1944 pixels
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Primary camera video1080p@30fpsvideo
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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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Selfie camera2 MP2 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes, with stereo speakers
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NotificationsVibration; MP3, WAV ringtonesN/A
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Multimedia
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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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WLAN wimaxYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-GoYes-
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Bluetoothv3.0v2.1
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Bluetooth A2DPYesYes
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Bluetooth EDR-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)-
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Messaging MMSMMS-
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush MailPush Email
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesHTML5
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Adobe FlashYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1800 mAh4000 mAh
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Battery removable-Non-removable
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Talk time8 h 45 min-
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Standby time252 h-