ZTE R221 vs i-mobile 638CG
ZTE R221
i-mobile 638CG
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Network
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2G networkGSM 900, 1800GSM 900, 1800, 1900
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2014-122009
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Status2014-12
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height108 mm113 mm
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Width47 mm51 mm
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Thickness14 mm14.5 mm
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Weight80 g
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ColorsBlackBlack
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Display
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Display typeTFTTFT
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Physical size1.8 inches2.4 inches
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Resolution128 x 160 pixels240 x 320 pixels
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Pixel density114 ppi167 ppi
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Display colors66560262144
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Hardware
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Internal storage5 MB25 MB
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Memory cardmicroSDmicroSD
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Memory card max2 GB8 GB
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Main camera
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Main camera3.15 MP
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Primary camera resolution640 x 480 pixels2048 x 1536 pixels
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Primary camera videonovideo
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; Downloadable polyphonic, MP3 ringtones
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Multimedia
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Radio FMFM radioFM radio
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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(threaded view)
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Messaging EMS-EMS
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Messaging MMS-MMS
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WAP-WAP 2.0/xHTML
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JavaNoNo
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Browser
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BrowserNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh1050 mAh
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Talk time9 h8 h 30 min
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Standby time280 h400 h
