Yezz Billy 4.7 vs ZTE Grand X4
Yezz Billy 4.7
ZTE Grand X4
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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, 2100HSDPA 850, 900, 1900, 2100
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4G network-LTE
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HSDPA speedHSDPA, 42.2 Mbps42.2 Mbps
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HSUPA speedHSUPA, 5.76 Mbps5.76 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-52016-9
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Status2014-72016-9
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Design
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SIMDual SIM (Micro-SIM)Nano-SIM
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Height135.8 mm155.2 mm
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Width67.2 mm77 mm
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Thickness7.2 mm9.1 mm
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Weight120 g162 g
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ColorsBlue, Red, WhiteBlack
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.7 inches5.5 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density312 ppi267 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass 3
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Multitouch-Yes
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7Quad-core 1.4 GHz ARM Cortex-A53
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ChipsetQualcomm MSM8212 Snapdragon 200Qualcomm MSM8917 Snapdragon 425
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GPUAdreno 302Adreno 308
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Internal storage8 GB16 GB
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Memory RAM1 GB2 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB128 GB
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OS
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OSMicrosoft Windows Phone 8.1Android OS, v6.0.1 (Marshmallow)
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Main camera
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Main camera8 MP13 MP
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Primary camera resolution3264 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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Selfie camera2 MP5 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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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual BandYes-
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USBmicroUSB 2.0Type-C reversible connector
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Bluetoothv4.0v4.2
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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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 EmailPush Email
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JavaNoNo
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Sensors-Fingerprint (rear-mounted), 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 capacity1780 mAh3140 mAh
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Battery removable-Non-removable
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Talk time 2G16 h-
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Talk time 3G7 h 30 min26 h
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Standby time 2G480 h-
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Standby time 3G350 h715 h