BLU Life Play X vs Celkon A21
BLU Life Play X
Celkon A21
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 850, 1900HSDPA 2100
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HSDPA speedHSDPA, 42 MbpsHSDPA
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HSUPA speedHSUPA, 21 Mbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-122014-12
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Status2014-12014-12
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Design
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SIMDual SIM (Mini-SIM and Micro-SIM, dual stand-by)Dual SIM (dual stand-by)
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Height137 mm124.8 mm
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Width68.4 mm66.1 mm
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Thickness7.9 mm10.8 mm
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Weight125 g115.3 g
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ColorsBlackBlack, Blue, Red
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Display
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Display typeLED-backlit IPS LCD capacitive touchscreenCapacitive touchscreen
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Physical size4.7 inches4.0 inches
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Resolution720 x 1280 pixels320 x 480 pixels
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Pixel density312 ppi144 ppi
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Display colors16777216-
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Hardware
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CPUQuad-core 1.5 GHz ARM Cortex-A7Dual-core 1.2 GHz
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ChipsetMediatek MT6589TMediatek MT6582
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GPUPowerVR SGX544MP2-
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Memory ROM-512 MB
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Internal storage16 GB-
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Memory RAM1 GB256 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 (Jelly Bean)Android OS, v4.2.2 (Jelly Bean)
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Main camera
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Main camera8 MP3.15 MP
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Primary camera resolution3264 x 2448 pixels-
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Primary camera video1080p@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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Selfie camera2 MP1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, MP3 ringtonesVibration, Polyphonic, MP3 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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USBmicroUSB 2.0Yes
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Bluetoothv4.0v4.0
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GPSYes, with A-GPSNo
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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 IMIM-
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Messaging Push EmailPush Email-
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1800 mAh1500 mAh
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Talk time 2G18 h-
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Talk time 3G16 h8 h
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Standby time 2G780 h-
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Standby time 3G700 h120 h