NIU C21A vs Samsung Gear S
NIU C21A
Samsung Gear S
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G network-HSDPA 900, 2100
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HSDPA speed-HSDPA
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2013-32014-8
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Status2013-42014-10
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Design
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SIMDual SIM (Mini-SIM)Yes
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Height106 mm39.8 mm
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Width45 mm58.3 mm
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Thickness14.5 mm12.5 mm
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Weight73 g
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ColorsBlack, Blue, Fuchsia, Green, Purple, Red, WhiteBlack, White
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Display
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Display typeTFTSuper AMOLED capacitive touchscreen
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Physical size1.8 inches2.0 inches
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Resolution128 x 160 pixels360 x 480 pixels
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Pixel density114 ppi300 ppi
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Display colors26214416777216
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Hardware
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CPUDual-core 1.0 GHz
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Internal storage64 Mbit4 GB
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Memory RAM-512 MB
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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 jackNoYes
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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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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBYesmicroUSB 2.0
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Bluetoothv2.0v4.1
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Infrared-Yes
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GPSNoYes, with A-GPS
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GLONASS-Yes
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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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JavaNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity600 mAh300 mAh
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Talk time4 h-
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Standby time200 h-
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OS
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OS-Tizen-based wearable platform
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Browser
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HTML-HTML5
