ZTE nubia Z17 vs vivo Y31
ZTE nubia Z17
vivo Y31
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMAGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)-
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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HSPA speed-HSPA
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LTE-A speedLTE-A, (3CA) Cat9, 450 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 announced2017-62015-9
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Status2017-62015-10
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Design
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM
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Height152.6 mm137.2 mm
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Width72.4 mm68.8 mm
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Thickness7.6 mm8.4 mm
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Weight173 g137 g
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ColorsAurora Blue, Black Gold, Flame Red, Obsidian Black, Solar GoldBlack, White
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.5 inches4.7 inches
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Resolution1080 x 1920 pixels720 x 1280 pixels
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Pixel density403 ppi312 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass-
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MultitouchYes-
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Hardware
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CPUOcta-core-
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CPUQuad-core 2.35 GHz KryoQuad-core 1.3 GHz
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CPU(second)quad-core 1.9 GHz Kryo
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ChipsetQualcomm MSM8998 Snapdragon 835Mediatek MT6580
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GPUAdreno 540-
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Memory RAM6, 8 GB1 GB
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Internal storage64, 128 GB8 GB
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Memory cardmicroSD
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Memory card max-128 GB
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OS
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OSAndroid 7.1.1 (Nougat)Android OS, v5.1 (Lollipop)
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Main camera
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Camera typeDual-
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Main camera12 MP, f/1.8 , 2x optical zoom8 MP
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23 MP, f/2.0
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Primary camera resolution-3264 x 2448 pixels
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Primary camera video2160p@30fpsvideo
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Primary camera Autofocusphase detection autofocus-
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Primary camera flashdual-LED (dual tone) flashLED flash
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Camera features1.4 µm pixel size, 1/2.55" sensor size, HDR, face detection, geo-tagging, panorama, touch focusGeo-tagging, HDR, touch focus
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Selfie camera
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Selfie camera16 MP, f/2.02 MP
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Sound
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3.5mm jackNoYes
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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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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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WLAN DLNAYes-
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USBType-C 1.0 reversible connectormicroUSB 2.0
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USB On-The-GoYes-
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Bluetoothv4.1Yes
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Bluetooth A2DPYes-
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bluetooth LEYes-
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InfraredYes-
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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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 EmailPush Email-
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Messaging Push Mail-Push Mail
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JavaNoNo
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SensorsFingerprint (rear-mounted), accelerometer, compass, gyro, proximityAccelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity3200 mAh2100 mAh
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Battery removableNon-removable-
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Fast battery chargingQuick Charge 4.0(50% in 25 min)-
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Talk time--
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Standby time--
