Samsung Serenata vs Siemens A31
Samsung Serenata
Siemens A31
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 2100-
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HSDPA speedHSDPA-
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2007-112005-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height109.5 mm102 mm
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Width63 mm46 mm
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Thickness19.7 mm17.6 mm
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Weight136 g85 g
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ColorsBlackAnthracite, Ruby Red
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Display
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Display typeTFT resistive touchscreenCSTN
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Physical size2.26 inches-
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Resolution240 x 240 pixels128 x 128 pixels
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Pixel density150 ppi-
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Display colors26214466560
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Hardware
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Internal storage4 GB1.5 MB
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Memory card
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; Polyphonic(64) ringtonesVibration; Polyphonic(32) ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLAN
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USB2.0
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Bluetoothv2.0
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Bluetooth A2DPYes-
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging EMS-EMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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WAPWAP 2.0/xHTMLWAP 1.2.1
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JavaNoYes
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Java MIDP-MIDP 1.0
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh820 mAh
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Talk time3 h5 h
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Standby time280 h270 h