Samsung A637 vs Vodafone 845
Samsung A637
Vodafone 845
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800, 1900
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3G networkUMTS 850, 1900HSDPA 900, 2100
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HSDPA speed-HSDPA, 3.6 Mbps
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UL speed-UL, 384 kbps
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2008-102010-4
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Status2010-5
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Design
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SIMMini-SIMMini-SIM
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Height86 mm99 mm
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Width43 mm55 mm
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Thickness20 mm14 mm
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Weight92 g109 g
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ColorsWhiteBlack
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Display
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Display typeTFTTFT resistive touchscreen
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Physical size1.9 inches2.8 inches
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Resolution144 x 176 pixels240 x 320 pixels
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Pixel density120 ppi143 ppi
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Display colors262144262144
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Hardware
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Internal storage50 MB512 MB
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Memory RAM-128 MB
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Memory cardmicroSDmicroSD
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Memory card max8 GB16 GB
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Main camera
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Main camera1.3 MP3.15 MP
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Primary camera resolution1280 x 1024 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Primary camera Autofocus-autofocus
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackNoYes
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LoudspeakerNoYes
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBYes2.0
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Bluetoothv2.0v2.1
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Bluetooth A2DPYesYes
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging EMSEMS-
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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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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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity800 mAh1200 mAh
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Talk time4 h3 h 30 min
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Standby time350 h288 h
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OS
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OS-Android OS, v2.1 (Eclair)