BLU Vivo Air LTE vs NIU C21A
BLU Vivo Air LTE
NIU C21A
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 1700(AWS), 1900, 2100-
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HSDPA speed21.1 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps upload-
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GPRSYesYes
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EDGEYes
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Availability
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Status2015-92013-4
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Oficially announced2015-92013-3
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Design
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SIMNano-SIMDual SIM (Mini-SIM)
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Height141.9 mm106 mm
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Width68.1 mm45 mm
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Thickness5.1 mm14.5 mm
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Weight98 g73 g
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ColorsBlack, WhiteBlack, Blue, Fuchsia, Green, Purple, Red, White
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Display
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Display typeAMOLED capacitive touchscreenTFT
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Physical size4.8 inches1.8 inches
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Resolution720 x 1280 pixels128 x 160 pixels
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Pixel density306 ppi114 ppi
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Display colors16777216262144
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A53
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ChipsetQualcomm MSM8916 Snapdragon 410-
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GPUAdreno 306-
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Memory RAM2 GB-
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Internal storage16 GB64 Mbit
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSAndroid OS, v5.0.2 (Lollipop)-
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Main camera
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Main camera8 MP
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Primary camera resolution3264 x 2448 pixels640 x 480 pixels
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Primary camera video1080p@30fpsno
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Camera featuresYesNo
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Selfie camera
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Secondary camera-No
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Selfie camera5 MP
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration, Polyphonic
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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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0Yes
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Bluetoothv4.0v2.0
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GPSYes, with A-GPSNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIMIM
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Messaging Push EmailPush Email-
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WAP-Yes
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JavaNoNo
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SensorsAccelerometer, proximity-
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2050 mAh600 mAh
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Talk time-4 h
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Talk time 2G22 h-
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Talk time 3G11 h-
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Standby time-200 h
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Standby time 2G700 h-
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Standby time 3G650 h-