Xiaomi Mi 4s vs vivo Y81i
Xiaomi Mi 4s
vivo Y81i
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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, 900, 2100
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4G networkLTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500)
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HSDPA speed-21.1 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 uploadLTE-A (2CA), Cat7, 300 Mbps download, 150 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-22018-10
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Status2016-32018-11
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Design
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Build-Front glass, plastic body
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SIMDual SIM (Micro-SIM/Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height139.3 mm155.1 mm
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Width70.8 mm75 mm
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Thickness7.8 mm7.8 mm
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Weight133 g143 g
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ColorsBlack, Gold, Pink, WhiteBlack, Red
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.0 inches6.22 inches
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Resolution1080 x 1920 pixels720 x 1520 pixels
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Pixel density441 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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CPUQuad-core 2.0 GHz Cortex-A53
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ChipsetQualcomm MSM8992 Snapdragon 808Mediatek MT6761 Helio A22
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GPUAdreno 418PowerVR GE8320
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Memory RAM3 GB2 GB
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Internal storage64 GB16 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 OSFuntouch 4.0 OS (Android 8.1 Oreo)
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Main camera
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Main camera13 MP, f/2.013 MP, f/2.2
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video1080p@30fps, 720p@120fps1080p@30fps
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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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Primary camera phase detection autofocus-phase detection autofocus
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Camera featuresGeo-tagging, HDR, face/smile detection, panorama, touch focusAutofocus, continuous shooting, digital zoom, 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 camera5 MP, f/2.05 MP, f/2.2
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Selfie camera resolution-2592 x 1944 pixels
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Selfie camera video1080p1080p@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-FM Radio
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Radio FMStereo 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 DirectYesYes
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WLAN WiFi Dual BandYes-
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USBType-C reversible connectormicroUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.1v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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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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BDSYesYes
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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, light, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity3260 mAh3260 mAh
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Battery removableNon-removableNon-removable
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Talk time--
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Standby time--
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