BLU Life One X2 vs Yezz Billy 4
BLU Life One X2
Yezz Billy 4
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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, 1700(AWS), 1900, 2100HSDPA 850, 1900
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4G networkLTE frequency band 2(1900), 4(1700/2100), 7(2600), 12(700), 17(700)-
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed11.5 Mbps5.76 Mbps
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LTE speedLTE, 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 announced2016-92014-6
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Status2016-92014-10
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM (Micro-SIM)
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Height148 mm122.5 mm
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Width72.4 mm64.4 mm
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Thickness9.5 mm9.9 mm
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Weight166 g109 g
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ColorsGray, Rose GoldBlack, Blue, Champing Gold, Gun Metal, Red, White, Yellow
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Display
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Display typeIPS LCD capacitive touchscreenTFT capacitive touchscreen
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Physical size5.2 inches4.0 inches
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Resolution1080 x 1920 pixels480 x 800 pixels
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Pixel density424 ppi233 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 3-
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MultitouchYes-
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Hardware
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CPUOcta-core 1.4 GHz ARM Cortex-A53Quad-core 1.2 GHz ARM Cortex-A7
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ChipsetQualcomm MSM8937 Snapdragon 430Qualcomm MSM8212 Snapdragon 200
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GPUAdreno 505Adreno 302
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Memory RAM2, 4 GB512 MB
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Internal storage16, 64 GB4 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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OSAndroid OS, v6.0.1 (Marshmallow)Microsoft Windows Phone 8.1
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Main camera
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Main camera16 MP, f/2.08 MP
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Primary camera resolution-3264 x 2448 pixels
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Primary camera video1080p@30fps720p@30fps
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Primary camera Autofocusphase detection autofocusautofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusGeo-tagging, touch focus
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Selfie camera
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FlashLED flash-
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Selfie camera8 MP1.3 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 radioStereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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USBmicroUSB 2.0microUSB 2.0
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USB hostYes-
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Bluetoothv4.0v4.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-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 EmailPush Email
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JavaNoNo
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SensorsFingerprint, accelerometer, gyro, proximityAccelerometer, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity3150 mAh1300 mAh
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Battery removableNon-removable-
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Talk time 2G26 h7 h
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Talk time 3G16 h4 h 30 min
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Standby time 2G725 h350 h
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Standby time 3G625 h300 h