Maxwest Astro X4 vs vivo Y81
Maxwest Astro X4
vivo Y81
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 850, 1700(AWS), 1900HSDPA 850, 900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed21.1 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speed-LTE, Cat7, 301 Mbps download, 102 Mbps upload
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GPRSClass 12Yes
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EDGEClass 12Yes
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Availability
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Oficially announced2016-12018-6
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Status2016-22018-6
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Design
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Build-Aluminium alloy, plastic
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SIMDual SIM (dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height123.5 mm155 mm
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Width64 mm75 mm
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Thickness9.8 mm7.77 mm
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Weight122 g146 g
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ColorsBlack, Blue, Gold, Pink, WhiteBlack
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Display
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Display typeCapacitive touchscreenIPS capacitive touchscreen
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Physical size4.0 inches6.22 inches
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Resolution480 x 800 pixels720 x 1520 pixels
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Pixel density233 ppi270 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUDual-core 1.0 GHz ARM Cortex-A7Quad-core 2.0 GHz Cortex-A53
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CPU(second)quad-core 1.5 GHz Cortex-A53
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ChipsetMediatek MT6572MMediaTek Helio P22 MT6762
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GPUMali-400PowerVR GE8320
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Memory RAM512 MB3 GB
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Internal storage4 GB32 GB
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Memory cardmicroSDmicroSD, microSDHC, microSDXC
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Memory card max32 GB256 GB
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Storage-eMMC 5.1
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OS
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OSAndroid OS, v4.4 (KitKat)Android 8.1 Oreo
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Main camera
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Main camera3.15 MP13 MP, f/2.2
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video720p1080p@30fps
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, touch focusAutofocus, continuous shooting, digital zoom, optical 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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FlashLED flash-
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Secondary cameraVGA-
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Selfie camera5 MP, f/2.2
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Selfie camera resolution-2592 x 1944 pixels
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Selfie camera video-1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtones-
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Earpiece-Yes
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Multimedia
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Radio-No
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Radio FMStereo 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, 802.11n 5GHz
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.0v4.2
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Bluetooth A2DP-Yes
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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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JavaNo-
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SensorsAccelerometer, proximityAccelerometer, gyroscope, light, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity1400 mAh3260 mAh
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Battery removableRemovableNon-removable
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Fast battery charging-Yes
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Talk time8 h-
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Standby time180 h-