Celkon A90 vs Samsung DoubleTime I857
Celkon A90
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 networkHSDPA 850, 900, 1900, 2100HSDPA 850, 1900, 2100
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HSDPA speedHSDPAHSDPA, 7.2 Mbps
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HSUPA speedHSUPAHSUPA, 2 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced20122011-10
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Status20122011-11
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height128 mm113 mm
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Width66 mm62 mm
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Thickness11.5 mm15 mm
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Weight128 g148 g
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Keyboard-QWERTY
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ColorsBlackBlack/white
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches3.2 inches
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Resolution480 x 800 pixels320 x 480 pixels
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Pixel density233 ppi180 ppi
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Display colors-262144
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Hardware
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CPU650 MHz800 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 max32 GB32 GB
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OS
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OSAndroid OS, v2.3.5 (Gingerbread)Android OS, v2.2 (Froyo)
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Main camera
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Main camera5 MP3.15 MP
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Primary camera resolution2592 x 1944 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 cameraYesNo
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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 with RDS-
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Radio recordingFM recording-
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Radio transmitterFM transmitter-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.0v3.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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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 capacity1420 mAh1200 mAh
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Talk time8 h 20 min6 h
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Standby time300 h250 h
