Nokia Lumia 620 vs vivo Y51
Nokia Lumia 620
vivo Y51
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100TD-SCDMA
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HSDPA speedHSDPA, 21 Mbps-
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HSUPA speedHSUPA, 5.76 Mbps-
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TD-SCDMA speed-TD-SCDMA
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TD-LTE speed-TD-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2012-122015-12
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Status2013-12015-12
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Design
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SIMMicro-SIMDual SIM
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Height115.4 mm143.8 mm
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Width61.1 mm71.7 mm
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Thickness11 mm7.5 mm
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Weight127 g157 g
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ColorsLime green, black, cyan, magenta, orange, white, yellowWhite
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size3.8 inches5.0 inches
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Resolution480 x 800 pixels540 x 960 pixels
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Pixel density246 ppi220 ppi
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Display colors1677721616777216
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Hardware
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CPUDual-core 1 GHz KraitQuad-core 1.2 GHz
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ChipsetQualcomm Snapdragon S4-
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GPUAdreno 305-
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Memory RAM512 MB2 GB
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Internal storage8 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max64 GB128 GB
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OS
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OSMicrosoft Windows Phone 8Android OS, v5.0.2 (Lollipop)
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Main camera
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Camera typePhoto / Video-
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Main camera5 MP8 MP
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Primary camera resolution2592 x 1936 pixels3264 x 2448 pixels
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Primary camera video720p@30fps1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera5 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi Dual BandYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv3.0Yes
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Bluetooth A2DPYes-
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Bluetooth EDRYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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BDS-Yes
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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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Messaging Push Mail-Push Mail
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JavaNoNo
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Sensors-Accelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1300 mAh2350 mAh
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Talk time--
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Talk time 2G14 h 40 min-
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Talk time 3G9 h 50 min-
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Standby time330 h-