Cat B25 vs vivo Y51
Cat B25
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 network-TD-SCDMA
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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 announced2014-122015-12
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Status2014-122015-12
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Design
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SIMDual SIMDual SIM
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Height125 mm143.8 mm
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Width57 mm71.7 mm
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Thickness22 mm7.5 mm
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Weight161 g157 g
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ColorsBlackWhite
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Display
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Display typeTFTIPS LCD capacitive touchscreen
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Physical size2.0 inches5.0 inches
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Resolution240 x 320 pixels540 x 960 pixels
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Pixel density200 ppi220 ppi
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Display colors-16777216
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Hardware
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CPU208 MHz1.2 GHz Quad-core
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ChipsetMediatek MT6235-
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Memory RAM-2 GB
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Internal storage-16 GB
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Memory cardmicroSDmicroSD
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Memory card max8 GB128 GB
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Main camera
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Main camera2 MP8 MP
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Primary camera resolution1600 x 1200 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flash-LED 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 cameraNo-
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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; Polyphonic, MP3 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
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.1Yes
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GPSNoYes, with A-GPS
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BDS-Yes
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Mail-Push Mail
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Java-No
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Sensors-Accelerometer, compass, proximity
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Browser
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HTML-HTML5
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BrowserNo-
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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 time9 h 30 min-
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Standby time156 h-
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OS
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OS-Android OS, v5.0.2 (Lollipop)