Oukitel U22 vs vivo Y51
Oukitel U22
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 900, 1900, 2100TD-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 announced20172015-12
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Status20172015-12
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM
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Height-143.8 mm
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Width-71.7 mm
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Thickness-7.5 mm
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Weight-157 g
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ColorsGray, WhiteWhite
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Display
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Display typeIPS capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.5 inches5.0 inches
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Resolution720 x 1280 pixels540 x 960 pixels
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Pixel density267 ppi220 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen-
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MultitouchYes-
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.2 GHz
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ChipsetMediatek MT6580A-
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GPUMali-400 MP2-
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Memory RAM2 GB2 GB
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Internal storage16 GB16 GB
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Memory cardmicroSD, microSDHCmicroSD
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Memory card max32 GB128 GB
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OS
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OSAndroid OS, v7.0(Nougat)Android OS, v5.0.2 (Lollipop)
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Main camera
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Camera typeDual-
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Main camera8 MP8 MP
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0.3 MP
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Primary camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Primary camera video720p@30fps1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, exposure compensation, self-timer, scene modeGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera typeDual-
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Selfie camera5 MP5 MP
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0.3 MP
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Selfie camera video480p@30fps-
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Notifications-Vibration; 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 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYes-
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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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BDS-Yes
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Features
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Messaging SMS-SMS(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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SensorsAccelerometr, fingerprint, light, proximityAccelerometer, 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 capacity2500 mAh2350 mAh
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Battery removableRemovable-
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Talk time--
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Talk time 2G8 h-
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Talk time 3G8 h-
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Standby time--
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Standby time 2G200 h-
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Standby time 3G200 h-