Xiaomi Mi 4s vs Yezz Billy 4
Xiaomi Mi 4s
Yezz Billy 4
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 1900, 2100; TD-SCDMAHSDPA 850, 1900
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4G networkLTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)-
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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HSPA speedHSPA-
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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 announced2016-22014-6
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Status2016-32014-10
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Design
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SIMDual SIM (Micro-SIM/Nano-SIM, dual stand-by)Dual SIM (Micro-SIM)
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Height139.3 mm122.5 mm
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Width70.8 mm64.4 mm
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Thickness7.8 mm9.9 mm
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Weight133 g109 g
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ColorsBlack, Gold, Pink, WhiteBlack, 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 size5.0 inches4.0 inches
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Resolution1080 x 1920 pixels480 x 800 pixels
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Pixel density441 ppi233 ppi
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Display colors1677721616777216
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MultitouchYes-
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7
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ChipsetQualcomm MSM8992 Snapdragon 808Qualcomm MSM8212 Snapdragon 200
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GPUAdreno 418Adreno 302
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Memory RAM3 GB512 MB
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Internal storage64 GB4 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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OSAndroid OSMicrosoft Windows Phone 8.1
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Main camera
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Main camera13 MP, f/2.08 MP
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Primary camera resolution-3264 x 2448 pixels
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Primary camera video1080p@30fps, 720p@120fps720p@30fps
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Primary camera Autofocusphase detection autofocusautofocus
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Primary camera flashdual-LED (dual tone) flashLED flash
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Camera featuresGeo-tagging, HDR, face/smile detection, panorama, touch focusGeo-tagging, touch focus
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Selfie camera
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Selfie camera5 MP, f/2.01.3 MP
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Selfie camera video1080p-
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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 FMStereo FM radioStereo FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-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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WLAN WiFi Dual BandYes-
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USBType-C reversible connectormicroUSB 2.0
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Bluetoothv4.1v4.0
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Bluetooth A2DPYesYes
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InfraredYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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BDSYes-
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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 Email-Push Email
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Messaging Push MailPush Mail-
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JavaNoNo
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SensorsFingerprint, accelerometer, compass, gyro, proximityAccelerometer, 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 capacity3260 mAh1300 mAh
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Battery removableNon-removable-
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Talk time--
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Talk time 2G-7 h
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Talk time 3G-4 h 30 min
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Standby time--
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Standby time 2G-350 h
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Standby time 3G-300 h
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