Celkon C770N vs Samsung DoubleTime I857
Celkon C770N
Samsung DoubleTime I857
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1900, 2100
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HSDPA speed-HSDPA, 7.2 Mbps
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HSUPA speed-HSUPA, 2 Mbps
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-122011-10
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Status2011-11
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height118 mm113 mm
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Width52 mm62 mm
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Thickness12.9 mm15 mm
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Weight148 g
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Keyboard-QWERTY
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ColorsBlack/RedBlack/white
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Display
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Display typeTFTTFT capacitive touchscreen
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Physical size2.4 inches3.2 inches
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Resolution240 x 320 pixels320 x 480 pixels
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Pixel density167 ppi180 ppi
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Display colors-262144
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Hardware
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CPU800 MHz Scorpion
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Chipset-Qualcomm MSM7230
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GPU-Adreno 205
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Memory RAM-256 MB
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Internal storage-260 MB
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Memory cardmicroSDmicroSD
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Memory card max16 GB32 GB
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Main camera
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Main camera2 MP3.15 MP
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Primary camera resolution1600 x 1200 pixels2048 x 1536 pixels
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Primary camera videovideo320p
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Primary camera Autofocus-autofocus
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio-No
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Radio FMStereo FM radio-
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Connectivity
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WLAN
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USBYesmicroUSB 2.0
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BluetoothYesv3.0
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Bluetooth A2DP-Yes
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging Email-Email
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Messaging IM-IM
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JavaNoYes, via Java MIDP emulator
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Browser
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HTML-Yes
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BrowserYes-
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Adobe Flash-Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh1200 mAh
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Talk time9 h 20 min6 h
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Standby time350 h250 h
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OS
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OS-Android OS, v2.2 (Froyo)
