Bird D660 vs Siemens A31
Bird D660
Siemens A31
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Network
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2G networkGSM 900, 1800GSM 900, 1800
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GPRSYesYes
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EDGE
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Availability
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Oficially announced20062005-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height107 mm102 mm
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Width45 mm46 mm
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Thickness16.5 mm17.6 mm
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Weight85 g
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ColorsSilverAnthracite, Ruby Red
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Display
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Display typeTFTCSTN
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Resolution128 x 160 pixels128 x 128 pixels
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Display colors6656066560
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Hardware
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Internal storage64 MB1.5 MB
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Memory cardmicroSD
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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 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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LoudspeakerNoYes
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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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USBYes
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Bluetooth
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InfraredYes-
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging EMSEMSEMS
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Messaging MMSMMSMMS
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WAPWAP 2.0WAP 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 capacity-820 mAh
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Talk time-5 h
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Standby time-270 h