Samsung Epic 4G vs Samsung Impact b
Samsung Epic 4G
Samsung Impact b
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Network
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2G networkCDMA 800, 1900GSM 900, 1800
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3G networkCDMA2000 1xEV-DO-
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HSDPA speedHSDPA-
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EV-DO speed3.1 Mbps-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2010-62014-12
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Status2010-9
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Design
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SIMMini-SIMMini-SIM
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Height124 mm105 mm
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Width65 mm44.5 mm
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Thickness14 mm14 mm
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Weight155 g78.5 g
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KeyboardQWERTY-
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ColorsBlackBlack
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Display
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Display typeSuper AMOLED capacitive touchscreenCSTN
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Physical size4.0 inches1.77 inches
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Resolution480 x 800 pixels128 x 160 pixels
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Pixel density233 ppi116 ppi
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Display colors1677721666560
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Hardware
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CPU1 GHz ARM Cortex-A8
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ChipsetHummingbird-
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GPUPowerVR SGX540-
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Memory ROM512 MB-
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Memory RAM512 MB-
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Internal storage-4 MB
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Memory cardmicroSD
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Memory card max32 GB-
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OS
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OSAndroid OS, v2.1 (Eclair)-
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Main camera
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Main camera5 MP
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Primary camera resolution2592 x 1944 pixels-
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Primary camera video720p@30fps-
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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 cameraVGA camera-
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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 ringtones
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Multimedia
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Radio FMStereo FM radio with RDSFM radio
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Radio recorder-broadcast recording
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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WLAN wimaxYes-
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USBmicroUSB 2.02.0
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Bluetoothv2.1Yes
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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
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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 emulatorYes
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Java MIDP-MIDP 2.0
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Browser
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HTMLYes-
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Adobe FlashAdobe Flash Lite-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh800 mAh
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Talk time5 h 30 min2 h 30 min
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Standby time300 h250 h
