Samsung D550 vs Siemens AL21
Samsung D550
Siemens AL21
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Network
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2G networkGSM 900, 1800, 1900GSM 900, 1800, 1900
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2005-62005-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height95 mm86.8 mm
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Width48 mm45.8 mm
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Thickness23 mm19.2 mm
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Weight119 g78 g
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KeyboardQWERTY-
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Colors-Black Magic, Red Temptation
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Display
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Display typeTFTTFT
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Physical size2.3 inches-
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Resolution176 x 220 pixels130 x 130 pixels
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Pixel density122 ppi-
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Display colors26214466560
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Hardware
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Internal storage80 MB1.5 MB
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Memory cardmicroSD
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Main camera
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Main camera1 MP
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Primary camera resolution1152 x 864 pixels-
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Primary camera videovideo-
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Selfie camera
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Secondary cameraNo-
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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 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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USBYesYes
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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 capacity820 mAh600 mAh
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Talk time3 h5 h
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Standby time250 h220 h
