NIU C21A vs Sony SmartWatch 2 SW2
NIU C21A
Sony SmartWatch 2 SW2
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Network
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2G networkGSM 850, 900, 1800, 1900
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GPRSYes
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EDGE
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Availability
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Oficially announced2013-32013-6
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Status2013-42013-10
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Design
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Build-Aluminum
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SIMDual SIM (Mini-SIM)No
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Height106 mm42 mm
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Width45 mm41 mm
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Thickness14.5 mm9 mm
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Weight73 g122.5 g
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ColorsBlack, Blue, Fuchsia, Green, Purple, Red, WhiteBlack, Leather Brown, Silver
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Display
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Display typeTFTCapacitive touchscreen
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Physical size1.8 inches1.6 inches
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Resolution128 x 160 pixels220 x 176 pixels
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Pixel density114 ppi176 ppi
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Display colors262144-
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Hardware
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Internal storage64 Mbit-
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Memory cardmicroSD
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Memory card max32 GB-
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Main camera
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Primary camera resolution640 x 480 pixels-
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Primary camera videono-
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Camera featuresNo-
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Selfie camera
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Secondary cameraNo-
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration, PolyphonicVibration; MP3, WAV 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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WLAN
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USBYesYes
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Bluetoothv2.0v3.0
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging Email-Email
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Messaging IMIMIM
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WAPYes-
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JavaNoNo
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Sensors-Yes
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Battery
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Battery typeLi-Ion-
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Battery capacity600 mAh-
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Talk time4 h96 h
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Standby time200 h-
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OS
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OS-Android OS compatible
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Browser
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Browser-No
