NIU C21A vs ZTE V81
NIU C21A
ZTE V81
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 900, 1900, 2100
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HSPA speed-HSPA
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2013-32013-1
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Status2013-4
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height106 mm200 mm
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Width45 mm156 mm
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Thickness14.5 mm11.1 mm
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Weight73 g
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ColorsBlack, Blue, Fuchsia, Green, Purple, Red, WhiteBlack
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Display
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Display typeTFTTFT capacitive touchscreen
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Physical size1.8 inches8.0 inches
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Resolution128 x 160 pixels768 x 1024 pixels
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Pixel density114 ppi160 ppi
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Display colors26214416777216
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Hardware
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CPUDual-core 1.4 GHz Krait
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Chipset-Qualcomm MSM8960 Snapdragon
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GPU-Adreno 225
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Internal storage64 Mbit4 GB
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Memory RAM-1 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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Main camera
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Main camera2 MP
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Primary camera resolution640 x 480 pixels1600 x 1200 pixels
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Primary camera videonovideo
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Camera featuresNo-
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Selfie camera
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Secondary cameraNoVGA camera
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration, PolyphonicVibration, MP3 ringtones
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Multimedia
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Radio-No
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Radio FMStereo FM radio-
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Connectivity
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WLANWi-Fi 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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Bluetoothv2.0v2.1
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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 MMS-MMS
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Messaging Email-Email
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Messaging IMIMIM
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Messaging Push Email-Push Mail
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WAPYes-
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JavaNoYes, via Java MIDP emulator
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity600 mAh3700 mAh
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Battery removable-Non-removable
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Talk time4 h-
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Standby time200 h-
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OS
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OS-Android OS, v4.1 (Jelly Bean)
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Browser
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HTML-HTML5
