Lenovo Vibe K4 Note vs UMIDIGI Z2 Special Edition
Lenovo Vibe K4 Note
UMIDIGI Z2 Special Edition
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1700, 1900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800), 39(1900); LTE-TDD 1900, 2300, 2500, 2600 MHz
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EV-DO speed-3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE, Cat7, 301 Mbps download, 102 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-12018-8
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Status2016-12018-8
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Design
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Build-Aluminium alloy, glass
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM (Nano-SIM/Nano-SIM(microSD))
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Height153.6 mm153.4 mm
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Width76.5 mm74.4 mm
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Thickness9.2 mm8.3 mm
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Weight158 g165 g
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ColorsBlackBlack, Blue, Purple
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Display
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Display typeIPS LCD capacitive touchscreenIPS capacitive touchscreen
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Physical size5.5 inches6.2 inches
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Resolution1080 x 1920 pixels1080 x 2246 pixels
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Pixel density401 ppi402 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, 2.5D curved glass screen
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Multitouch-Yes
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Hardware
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CPU-Octa-core
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CPUOcta-core 1.3 GHz ARM Cortex-A53Quad-core 2.0 GHz Cortex-A53
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CPU(second)quad-core 1.5 GHz Cortex-A53
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ChipsetMediatek MT6753MediaTek Helio P23 (MT6763V)
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GPUMali-T720MP3Mali-G71 MP2
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Memory RAM2, 3 GB4 GB
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Internal storage16, 32 GB64 GB
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Memory cardmicroSDmicroSD, microSDHC, microSDXC
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Memory card max128 GB256 GB
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Storage-eMMC 5.1
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OS
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OSAndroid OS, v5.1 (Lollipop)Android 8.1 Oreo
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Main camera
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Camera type-Dual
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Main camera13 MP, f/2.216 MP, f/1.7 , 1/2.8" , 1.12 µm
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8 MP
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Primary camera resolution-4672 x 3504 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusphase detection autofocus-
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Primary camera flashdual-LED (dual tone) flashdual-LED flash
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Primary camera phase detection autofocus-phase detection autofocus
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusAutofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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Selfie camera
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Selfie camera type-Dual
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Selfie camera5 MP16 MP, f/2.0 , 1.3 µm
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8 MP
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Selfie camera resolution-4672 x 3504 pixels
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Selfie camera video-1080p@30fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYes, with stereo speakersYes
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NotificationsVibration; MP3, WAV ringtones-
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Earpiece-Yes
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Headphone adapter-Yes
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5 GHz
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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Wi-Fi display-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C reversible connector
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USB On-The-Go-Yes
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Bluetoothv4.0v4.2
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Bluetooth A2DPYesYes
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bluetooth HID-Yes
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bluetooth LEYes-
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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)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push MailPush Mail-
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JavaNo-
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SensorsFingerprint, accelerometer, compass, gyro, proximityAccelerometer, compass, fingerprint, gyroscope, light, 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 capacity3300 mAh3850 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time 2G23 h-
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Talk time 3G22 h-
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Standby time 3G265 h-
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