Celkon A77 vs ZTE R221
Celkon A77
ZTE R221
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2012-122014-12
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Status2012-122014-12
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height118 mm108 mm
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Width61 mm47 mm
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Thickness13.5 mm14 mm
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Weight104 g80 g
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ColorsBlack, WhiteBlack
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size3.5 inches1.8 inches
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Resolution320 x 420 pixels128 x 160 pixels
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Pixel density151 ppi114 ppi
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Display colors-66560
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Hardware
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CPU1 GHz
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Internal storage-5 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB2 GB
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OS
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OSAndroid OS, v2.3 (Gingerbread)-
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Main camera
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Main camera2 MP
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Primary camera resolution1600 x 1200 pixels640 x 480 pixels
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Primary camera videovideono
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Selfie camera
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Secondary cameraYesNo
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration, Polyphonic, MP3 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi
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USBmicroUSB 2.0
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BluetoothYes
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GPSNoNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLYes-
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Browser-No
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1300 mAh1000 mAh
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Talk time4 h 45 min9 h
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Standby time130 h280 h
