Alcatel OT-S121 vs Celkon C77
Alcatel OT-S121
Celkon C77
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Network
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2G networkGSM 900, 1800GSM 850, 1900
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GPRSYes
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EDGE
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Availability
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Oficially announced2014-122014-12
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Status
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height98 mm110.2 mm
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Width44 mm53.4 mm
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Thickness12.5 mm12.2 mm
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Weight60 g93 g
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ColorsVariousGray
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Display
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Display typeSTN, monochrome graphicsTFT touchscreen
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Physical size1.3 inches2.8 inches
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Resolution98 x 64 pixels240 x 400 pixels
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Pixel density90 ppi167 ppi
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Hardware
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Memory cardmicroSD
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Memory card max-16 GB
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; Polyphonic(8) ringtonesVibration, Polyphonic, MP3 ringtones
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Multimedia
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Radio FMFM radioStereo FM radio
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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 MMS-MMS
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JavaNoYes
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Browser
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BrowserNoYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity670 mAh1200 mAh
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Talk time6 h9 h 10 min
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Standby time290 h400 h
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Main camera
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Main camera1.3 MP
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Primary camera resolution-1280 x 1024 pixels
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Primary camera video-video
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Selfie camera
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Secondary camera-No