Lava Iris 400s vs vivo Y51
Lava Iris 400s
vivo Y51
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100TD-SCDMA
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TD-SCDMA speed-TD-SCDMA
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Speed YesYes, 384 kbps-
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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 announced2014-82015-12
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Status2014-82015-12
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Design
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SIMDual SIMDual SIM
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Height125 mm143.8 mm
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Width64 mm71.7 mm
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Thickness10.2 mm7.5 mm
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Weight157 g
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ColorsBlack, SilverWhite
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches5.0 inches
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Resolution480 x 800 pixels540 x 960 pixels
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Pixel density233 ppi220 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.2 GHzQuad-core 1.2 GHz
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Memory RAM512 MB2 GB
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Internal storage4 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB128 GB
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OS
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OSAndroid OS, v4.4.2 (KitKat)Android OS, v5.0.2 (Lollipop)
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Main camera
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Main camera5 MP8 MP
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Primary camera resolution2592 x 1944 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresFace/smile detection, panoramaGeo-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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Radio FMFM radioFM 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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GPSYesYes, with A-GPS
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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 IM-IM
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Messaging Push Mail-Push Mail
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JavaYes, via Java MIDP emulatorNo
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SensorsAccelerometerAccelerometer, compass, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1400 mAh2350 mAh
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Talk time10 h 25 min-
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Standby time150 h-
