Apple iPhone 4 CDMA vs Celkon CT 2
Apple iPhone 4 CDMA
Celkon CT 2
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Network
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2G networkCDMA 800, 1900GSM 900, 1800
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3G networkCDMA2000 1xEV-DO-
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EV-DO speed3.1 Mbps-
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GPRS
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EDGE
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Availability
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Oficially announced2011-12012-9
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Status2011-22012
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Design
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SIMMicro-SIMMini-SIM
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Height115.2 mm194 mm
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Width58.6 mm120 mm
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Thickness9.3 mm11.6 mm
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Weight137 g
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ColorsBlack, WhiteBlack
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Display
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Display typeLED-backlit IPS LCD, capacitive touchscreenTFT capacitive touchscreen
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Physical size3.5 inches7.0 inches
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Resolution640 x 960 pixels480 x 800 pixels
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Pixel density330 ppi133 ppi
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Display colors16777216-
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Hardware
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CPU1 GHz ARM Cortex-A81 GHz ARM Cortex-A8
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ChipsetApple A4-
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GPUPowerVR SGX535-
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Memory RAM512 MB-
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Internal storage16, 32 GB-
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSiOS 4Android OS, v4.0 (Ice Cream Sandwich)
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Main camera
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Main camera5 MP
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Primary camera-Yes
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Primary camera resolution2592 x 1936 pixels-
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Primary camera video720p@30fpsvideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Selfie camera
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Secondary camera-No
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Secondary camera videocallingVideocalling over Wi-Fi-
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes, with stereo speakers
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NotificationsVibration, proprietary ringtonesN/A
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Multimedia
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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g
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USB2.0Yes
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Bluetoothv2.1Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes
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Features
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Messaging SMSiMessage(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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Messaging iMessageiMessage-
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Messaging Push EmailPush Email-
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JavaNoYes, via Java MIDP emulator
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Browser
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HTMLHTML (Safari)Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity1420 mAh3000 mAh
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Battery removableNon-removableNon-removable
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Talk time-3 h
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Standby time-100 h