Samsung Galaxy Alpha vs Samsung Galaxy S II Skyrocket HD I757
Samsung Galaxy Alpha
Samsung Galaxy S II Skyrocket HD I757
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 1900, 2100
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4G networkLTE 800, 850, 900, 1800, 1900, 2100, 2600LTE 700 MHz Class 17, 1700, 2100
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HSDPA speedHSDPA MbpsHSDPA, 21 Mbps
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HSUPA speedHSUPAHSUPA, 5.76 Mbps
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LTE speed-LTE
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LTE-A speedLTE-A, Cat6, 300 Mbps download, 50 Mbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-82012-1
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Status2014-9
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Design
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SIMNano-SIMMicro-SIM
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Height132.4 mm
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Width65.5 mm
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Thickness6.7 mm
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Weight115 g
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ColorsCharcoal Black, Dazzling White, Frosted Gold, Scuba Blue, Sleek SilverBlack
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Display
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Display typeSuper AMOLED capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size4.7 inches4.65 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density312 ppi316 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-core 1.8 GHz ARM Cortex-A15Dual-core 1.5 GHz
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ChipsetExynos 5 Octa 5430-
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GPUMali-T628 MP6-
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Memory RAM2 GB1 GB
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Internal storage32 GB16 GB
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSAndroid OS, v4.4.4 (KitKat)Android OS, v2.3.5 (Gingerbread)
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Main camera
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Camera typePhoto / Video-
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Main camera12 MP8 MP
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Primary camera resolution4128 x 3096 pixels3264 x 2448 pixels
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Primary camera video2160p@30fps, 1080p@60fps, 720p@120fps1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Selfie camera
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Selfie camera2.1 MP2 MP
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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, WAV ringtones
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Multimedia
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RadioNo-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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WLAN DLNAYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v3.0
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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Bluetooth EDRYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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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 IMIMIM
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Messaging Push EmailPush MailPush Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLHTML5HTML5
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Adobe Flash-Yes
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Battery
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Battery typeLi-Ion-
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Battery capacity1860 mAh-
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Talk time--
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Standby time--
