NIU GO 21 vs Philips X331
NIU GO 21
Philips X331
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800, 1900
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-52012-6
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Status2014-62012-6
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height105 mm108 mm
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Width44.9 mm57.5 mm
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Thickness14.2 mm14.4 mm
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Weight66 g107.7 g
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ColorsBlack, Blue, Gray, Green, Orange, RedBlack
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Display
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Display typeTFTTFT resistive touchscreen
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Physical size1.8 inches2.8 inches
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Resolution128 x 160 pixels240 x 320 pixels
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Pixel density114 ppi143 ppi
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Display colors66560262144
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Hardware
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Internal storage64 Mbit44 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 camera2 MP
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Primary camera resolution640 x 480 pixels1600 x 1200 pixels
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Primary camera videonoQCIF
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, MP3 ringtonesVibration; MP3 ringtones
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Multimedia
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Radio FMStereo FM radioStereo FM radio with RDS
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBmicroUSB 2.02.0
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Bluetoothv2.1v2.1
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Bluetooth A2DP-Yes
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Bluetooth EDRYes-
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GPSNoNo
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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 IMIM-
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WAPYesWAP 2.0/xHTML
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JavaNoYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity650 mAh1530 mAh
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Talk time6 h14 h
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Standby time200 h1200 h