Celkon A20 vs Philips T939
Celkon A20
Philips T939
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Network
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2G networkGSM 900, 1800GSM 900, 1800, 1900
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3G networkHSDPA 2100TD-SCDMA
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HSDPA speed-HSDPA, 3.6 Mbps
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UL speed-UL, 384 kbps
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-82013-9
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Status2013-82013-9
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Design
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SIMDual SIM (Mini-SIM)Dual SIM
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Height110 mm
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Width57.8 mm
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Thickness22 mm
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Weight239.5 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenDual TFT capacitive touchscreen
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Physical size4.0 inches3.2 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density233 ppi292 ppi
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Display colors-262144
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Hardware
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CPUDual-core 1.2 GHz1 GHz
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Memory ROM256 MB-
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Memory RAM512 MB512 MB
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Internal storage-4 GB
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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, v4.2.0 (Jelly Bean)Android OS, v4.0 (Ice Cream Sandwich)
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Main camera
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Main camera3.15 MP5 MP
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Primary camera resolution2048 x 1536 pixels2592 x 1944 pixels
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Primary camera videovideo480p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA cameraNo
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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 ringtones
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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USBmicroUSB 2.02.0
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BluetoothYesv2.1
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Bluetooth A2DP-Yes
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Bluetooth EDR-Yes
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GPSNoYes, 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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Messaging Push EmailPush EmailPush Email
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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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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh2000 mAh
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Talk time--
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Standby time--
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Multimedia
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Radio-No
