Xiaomi Mi 4s vs vivo X21i
Xiaomi Mi 4s
vivo X21i
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800, 1900GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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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), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
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HSPA speedHSPAHSPA
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-22018-5
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Status2016-32018-5
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Design
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Build-Aluminium alloy, glass
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SIMDual SIM (Micro-SIM/Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height139.3 mm154.4 mm
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Width70.8 mm75 mm
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Thickness7.8 mm7 mm
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Weight133 g159 g
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ColorsBlack, Gold, Pink, WhiteAurora White, Black, Ruby Red
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.0 inches6.28 inches
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Resolution1080 x 1920 pixels1080 x 2280 pixels
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Pixel density441 ppi402 ppi
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Display colors1677721616777216
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUQuad-core 2 GHz Cortex-A73
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CPU(second)quad-core 2 GHz Cortex-A53
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ChipsetQualcomm MSM8992 Snapdragon 808Mediatek MT6771 Helio P60
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GPUAdreno 418Mali-G72 MP3
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Memory RAM3 GB4, 6 GB
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Internal storage64 GB64, 128 GB
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Memory cardmicroSDmicroSD(uses second SIM slot)
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Memory card max128 GB256 GB
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OS
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OSAndroid OSAndroid 8.1 (Oreo)
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Main camera
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Camera type-Dual
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Main camera13 MP, f/2.012 MP, f/1.8 , 1/2.5" , 1.4 µm
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5 MP, f/2.4
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Primary camera resolution-4032 x 3024 pixels
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Primary camera video1080p@30fps, 720p@120fps1080p@30fps
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Primary camera Autofocusphase detection autofocusdual pixel phase detection autofocus
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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, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera5 MP, f/2.024 MP
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Selfie camera resolution-5632 x 4224 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 ringtonesVibration; MP3, WAV ringtones
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Earpiece-Yes
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Multimedia
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Radio FMStereo FM 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, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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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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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 IMIM-
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Messaging Push Email-Push Email
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Messaging Push MailPush Mail-
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JavaNo-
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SensorsFingerprint, accelerometer, compass, gyro, proximityFingerprint (rear-mounted), accelerometer, compass, 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 mAh3425 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time--
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Standby time--
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