Samsung Galaxy Axiom R830 vs ZTE N721
Samsung Galaxy Axiom R830
ZTE N721
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Network
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2G networkCDMA 800, 1700, 1900, 2100GSM 900, 1800
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3G networkCDMA2000 1xEV-DOHSDPA 850, 2100
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4G networkLTE 700 MHz Class 17, 850, 1700, 1900, 2100-
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HSDPA speed-HSDPA, 7.2 Mbps
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EV-DO speed3.1 Mbps-
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LTE speedLTE-
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2012-112014-12
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Status2012-11
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Design
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SIMMini-SIMMini-SIM
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Height121.7 mm106 mm
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Width63.8 mm56.2 mm
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Thickness11.9 mm14.2 mm
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Weight136.1 g105 g
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ColorsBlueBlack
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Display
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Display typeTFT capacitive touchscreenTFT touchscreen
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Physical size4.0 inches2.8 inches
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Resolution480 x 800 pixels240 x 320 pixels
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Pixel density233 ppi143 ppi
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Display colors1677721657344
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Hardware
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CPUDual-core 1.2 GHz Krait
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Memory ROM4 GB-
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Memory RAM1 GB-
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Internal storage-150 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.0.4 (Ice Cream Sandwich)Android OS
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Main camera
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Main camera5 MP2 MP
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Primary camera resolution2592 x 1944 pixels1600 x 1200 pixels
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Primary camera video720pvideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Selfie camera
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Secondary camera-No
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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
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NotificationsVibration, MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g
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WLAN WiFi HotspotYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush Email-
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WAP-WAP 2.0/xHTML
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2100 mAh1100 mAh
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Talk time8 h4 h 10 min
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Standby time252 h250 h
