Celkon A15 vs ZTE Obsidian
Celkon A15
ZTE Obsidian
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1700(AWS), 1900
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-102015-8
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Status2013-102015-8
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Design
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SIMDual SIM (Mini-SIM)Yes
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Height137.4 mm
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Width68.6 mm
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Thickness10.2 mm
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Weight137.5 g
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ColorsWhiteBlack
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Display
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Display typeTFT touchscreenTFT capacitive touchscreen
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Physical size3.5 inches4.5 inches
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Resolution320 x 480 pixels480 x 854 pixels
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Pixel density165 ppi218 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1 GHzQuad-core 1 GHz ARM Cortex-A53
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Chipset-Mediatek MT6735M
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GPU-Mali-T720MP2
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Memory ROM512 MB-
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Memory RAM256 MB1 GB
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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, v4.2.2 (Jelly Bean)Android OS, v5.1 (Lollipop)
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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 х 1944 pixels
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Primary camera videovideovideo
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Primary camera flash-LED flash
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Camera features-Yes
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera2 MP
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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 FMFM radio-
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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 HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv4.0
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Bluetooth A2DP-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 Email-Push Email
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JavaNoNo
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Sensors-Accelerometer
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Browser
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HTML-Yes
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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1400 mAh1800 mAh
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Talk time--
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Talk time 3G-6 h
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Standby time--
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Standby time 3G-252 h
