Samsung Z540 vs Siemens A31
Samsung Z540
Siemens A31
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800
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3G networkUMTS 2100-
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGE
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Availability
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Oficially announced20052005-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height99 mm102 mm
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Width50.5 mm46 mm
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Thickness14.9 mm17.6 mm
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Weight105 g85 g
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ColorsBlackAnthracite, Ruby Red
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Display
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Display typeTFTCSTN
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Resolution240 x 320 pixels128 x 128 pixels
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Display colors26214466560
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Hardware
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Internal storage140 MB1.5 MB
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Memory card
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Main camera
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Main camera1.3 MP
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Primary camera resolution1280 x 1024 pixels-
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Primary camera videoQCIF-
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Selfie camera
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Secondary cameraVGA camera-
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Sound
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3.5mm jackNoNo
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LoudspeakerYes, with stereo speakersYes
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NotificationsVibration; Downloadable polyphonic, MP3 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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USBYes
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BluetoothYes
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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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JavaYesYes
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Java MIDPMIDP 2.0MIDP 1.0
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity880 mAh820 mAh
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Talk time2 h 30 min5 h
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Standby time200 h270 h
