Samsung I405 Stratosphere vs i-mobile 638CG
Samsung I405 Stratosphere
i-mobile 638CG
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Network
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2G networkCDMA 800, 1900GSM 900, 1800, 1900
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3G networkCDMA2000 1xEV-DO-
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4G networkLTE 700 MHz Class 13-
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EV-DO speed3.1 Mbps-
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GPRSYes
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EDGE
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Availability
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Oficially announced2011-102009
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Status2011-10
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height126 mm113 mm
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Width65 mm51 mm
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Thickness14 mm14.5 mm
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Weight164 g
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KeyboardQWERTY-
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ColorsNoble BlackBlack
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Display
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Display typeSuper AMOLED capacitive touchscreenTFT
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Physical size4.0 inches2.4 inches
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Resolution480 x 800 pixels240 x 320 pixels
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Pixel density233 ppi167 ppi
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Display colors16777216262144
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Hardware
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CPU1 GHz
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Memory RAM512 MB-
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Internal storage4 GB25 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB8 GB
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Memory card included4 GB-
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OS
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OSAndroid OS, v2.3 (Gingerbread)-
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Main camera
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Main camera5 MP3.15 MP
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Primary camera resolution2592 x 1944 pixels2048 x 1536 pixels
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Primary camera video480pvideo
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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 camera-No
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Selfie camera1.3 MP
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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; Downloadable polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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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 HotspotYes-
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WLAN WiFi Dual BandYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0Yes
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Bluetoothv3.0Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSNo
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging EMS-EMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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Messaging IMIM-
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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 emulatorNo
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Browser
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HTMLYes-
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Adobe FlashYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1800 mAh1050 mAh
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Talk time8 h8 h 30 min
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Standby time212 h400 h
