Celkon C770 Dj vs NIU Tek 4D2
Celkon C770 Dj
NIU Tek 4D2
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkYesHSDPA 850, 1900
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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Speed YesYes-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-122014-8
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Status2014-11
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM/ Micro-SIM)
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Height118 mm123 mm
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Width52 mm63 mm
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Thickness12.9 mm10.3 mm
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Weight152 g
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ColorsBlack/RedBlack, Blue, Gray, Orange, White
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Display
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Display typeTFTTFT
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Physical size2.4 inches4.0 inches
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Resolution240 x 320 pixels480 x 800 pixels
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Pixel density167 ppi233 ppi
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Display colors-262144
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Hardware
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CPUDual-core 1 GHz ARM Cortex-A7
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Chipset-Mediatek MT6572M
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GPU-Mali-400
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Memory RAM-512 MB
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Internal storage-4 GB
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Memory cardmicroSDmicroSD
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Memory card max16 GB64 GB
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Main camera
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Main camera2 MP3.15 MP
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Primary camera resolution1600 x 1200 pixels2048 x 1536 pixels
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Primary camera videovideo480p@30fps
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Primary camera flash-LED flash
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Camera features-Geo-tagging, face detection, panorama
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Selfie camera
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Secondary cameraNo-
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Selfie camera1.3 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 FMStereo FM radioStereo FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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USBYesmicroUSB 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 SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Email-Push Email
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JavaNoYes, via Java MIDP emulator
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Sensors-Accelerometer
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Browser
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HTML-HTML5
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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1350 mAh1200 mAh
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Talk time9 h 10 min-
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Talk time 2G-8 h
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Talk time 3G-6 h
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Standby time350 h-
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Standby time 2G-400 h
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Standby time 3G-320 h
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OS
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OS-Android OS, v4.4.2 (KitKat)
