NIU GO 21 vs Spice Stellar 439 (Mi-439)
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NIU GO 21
Spice Stellar 439 (Mi-439)
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G network-HSDPA 2100
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-52014-8
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Status2014-62014-8
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height105 mm125 mm
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Width44.9 mm63 mm
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Thickness14.2 mm10 mm
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Weight66 g113.8 g
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ColorsBlack, Blue, Gray, Green, Orange, RedBrown, Silver
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Display
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Display typeTFTTFT capacitive touchscreen
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Physical size1.8 inches4.0 inches
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Resolution128 x 160 pixels480 x 800 pixels
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Pixel density114 ppi233 ppi
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Display colors66560262144
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Hardware
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CPUDual-core 1 GHz
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Chipset-Mediatek MT6572M
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GPU-Mali-400
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Internal storage64 Mbit4 GB
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Memory RAM-512 MB
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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 camera3.15 MP
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Primary camera resolution640 x 480 pixels2048 x 1536 pixels
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Primary camera videono720p@25fps
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Camera features-Geo-tagging, smile detection
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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, dual speakers
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NotificationsVibration, MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMStereo FM radioFM 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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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.1v3.0
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Bluetooth A2DP-Yes
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Bluetooth EDRYes-
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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 IMIMIM
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Messaging Push Email-Push Email
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WAPYes-
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JavaNoYes, via Java MIDP emulator
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Sensors-Accelerometer
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity650 mAh1400 mAh
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Talk time6 h5 h 30 min
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Standby time200 h58 h
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OS
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OS-Android OS, v4.4.2 (KitKat)
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Browser
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HTML-Yes
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