LG Optimus LTE SU640 vs Samsung I997 Infuse 4G
LG Optimus LTE SU640
Samsung I997 Infuse 4G
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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 networkLTE 800-
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HSDPA speedHSDPAHSDPA, 21 Mbps
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HSUPA speedHSUPAHSUPA, 3.6 Mbps
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LTE speedLTE-
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2011-102011-1
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Status2012-82011-5
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Design
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SIMMini-SIMMini-SIM
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Height132.9 mm132 mm
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Width67.9 mm71 mm
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Thickness10.4 mm9 mm
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Weight135 g139 g
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ColorsBlack, WhiteCaviar Black
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Display
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Display typeHD-IPS LCD capacitive touchscreenSuper AMOLED Plus capacitive touchscreen
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Physical size4.5 inches4.5 inches
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Resolution720 x 1280 pixels480 x 800 pixels
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Pixel density326 ppi207 ppi
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Display colors1677721616777216
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Hardware
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CPUDual-core 1.5 GHz Scorpion1.2 GHz ARM Cortex-A8
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ChipsetQualcomm MSM8660 Snapdragon-
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GPUAdreno 220-
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Memory RAM1 GB-
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Internal storage4 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Memory card included16 GB2 GB
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OS
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OSAndroid OS, v2.3.5 (Gingerbread)Android OS, v2.2 (Froyo)
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Main camera
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Main camera8 MP8 MP
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Primary camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Primary camera video1080p@30fps720p
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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 camera1.3 MP1.3 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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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, 802.11n
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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WLAN DLNAYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv3.0v3.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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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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WAPWAP 2.0/xHTML-
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JavaNoYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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Adobe FlashYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1830 mAh1750 mAh
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Talk time7 h8 h
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Standby time400 h400 h