Celkon A21 vs Plum Hammer
Celkon A21
Plum Hammer
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100-
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HSDPA speedHSDPA-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-122012-11
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Status2014-122012-12
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Design
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SIMDual SIM (dual stand-by)Dual SIM (Mini-SIM)
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Height124.8 mm116 mm
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Width66.1 mm52.8 mm
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Thickness10.8 mm19.8 mm
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Weight115.3 g93 g
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ColorsBlack, Blue, RedBlack, Camouflage, Orange
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Display
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Display typeCapacitive touchscreenTFT
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Physical size4.0 inches2.0 inches
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Resolution320 x 480 pixels240 x 320 pixels
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Pixel density144 ppi200 ppi
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Display colors-66560
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Hardware
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CPUDual-core 1.2 GHz
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ChipsetMediatek MT6582-
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Memory ROM512 MB64 MB
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Memory RAM256 MB32 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, v4.2.2 (Jelly Bean)-
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Main camera
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Main camera3.15 MP1.3 MP
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Primary camera resolution-1280 x 1024 pixels
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Primary camera videovideo320p@10fps
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Primary camera flash-LED flash
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Selfie camera
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Secondary camera-No
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesNo
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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 FMFM radioStereo FM radio
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Connectivity
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WLANWi-Fi
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USBYesYes
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Bluetoothv4.0v2.0
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GPSNoNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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Messaging IM-IM
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh1500 mAh
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Talk time-5 h
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Talk time 3G8 h-
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Standby time-600 h
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Standby time 3G120 h-
