Samsung A687 Strive vs Samsung Galaxy S II Skyrocket HD I757
Samsung A687 Strive
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, 1900HSDPA 850, 1900, 2100
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4G network-LTE 700 MHz Class 17, 1700, 2100
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HSDPA speed-HSDPA, 21 Mbps
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HSUPA speed-HSUPA, 5.76 Mbps
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Speed YesYes, 384 kbps-
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LTE speed-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2010-32012-1
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Status2010-3
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Design
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SIMMini-SIMMicro-SIM
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Height105.9 mm
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Width58.9 mm
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Thickness14.6 mm
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Weight113.1 g
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KeyboardQWERTY-
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ColorsBlackBlack
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Display
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Display typeTFT resistive touchscreenSuper AMOLED capacitive touchscreen
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Physical size2.6 inches4.65 inches
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Resolution240 x 320 pixels720 x 1280 pixels
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Pixel density154 ppi316 ppi
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Display colors26214416777216
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Hardware
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CPUDual-core 1.5 GHz
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Internal storage80 MB16 GB
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Memory RAM-1 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Main camera
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Main camera2 MP8 MP
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Primary camera resolution1600 x 1200 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraNo-
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Selfie camera2 MP
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; MP3 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
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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WLAN DLNA-Yes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.1v3.0
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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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GPS NavigatorAT&T Navigator-
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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Messaging Push Email-Push Mail
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WAPWAP 2.0/xHTML-
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JavaYesYes, via Java MIDP emulator
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Java MIDPMIDP 2.0-
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Browser
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HTMLYesHTML5
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Adobe Flash-Yes
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Battery
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Battery typeLi-Ion-
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Battery capacity1000 mAh-
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Talk time3 h-
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Standby time250 h-
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OS
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OS-Android OS, v2.3.5 (Gingerbread)