Xiaomi Redmi Note 4X vs vivo iQOO Neo 855
Xiaomi Redmi Note 4X
vivo iQOO Neo 855
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Network
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2G networkGSM 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1700(AWS), 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 19(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSPA speedHSPA-
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EV-DO speed-3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTELTE, Cat12, 603 Mbps download, 102 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2017-22019-10
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Oficially announced2017-22019-10
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Design
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Build-Plastic, aluminium alloy
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SIMDual SIM (Micro-SIM/Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height151 mm159.5 mm
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Width76 mm75.2 mm
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Thickness8.5 mm8.1 mm
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Weight165 g198.5 g
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ColorsBlack, Gold, Gray, PinkBlack, Purple, White
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.5 inches6.38 inches
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Resolution1080 x 1920 pixels1080 x 2340 pixels
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Pixel density401 ppi404 ppi
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Display colors1677721616777216
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Protection-Scratch resistant
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MultitouchYesYes
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Display features-DC dimming, HDR 10
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Hardware
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CPU-Octa-core
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CPUOcta-core 2.0 GHz ARM Cortex-A53Single-core 2.84 GHz Kryo 485
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CPU(second)Triple-core 2.42 GHz Kryo 485
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CPU(third)Quad-core 1.8 GHz Kryo 485
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ChipsetQualcomm MSM8953 Snapdragon 625Qualcomm SM8150 Snapdragon 855
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GPUAdreno 506Adreno 640
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Memory RAM3, 4 GB6, 8 GB
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Internal storage32, 64 GB64, 128, 256 GB
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Memory cardmicroSD(uses second SIM slot)No
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Memory card max256 GB-
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Storage-UFS 3.0
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OS
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OSAndroid OS, v6.0 (Marshmallow)Funtouch 9.0 (Android 9.0 Pie)
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Main camera
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Camera type-Triple
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Main camera13 MP, f/2.012 MP, f/1.8 , 1/2.55" , 1.4 µm
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8 MP, f/2.2
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2 MP, f/2.4
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Primary camera resolution-4032 x 3024 pixels
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Primary camera video1080p@30fps, 720p@120fps2160p@30fps, 1080p@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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Camera features1.12 µm pixel size, HDR, face detection, geo-tagging, 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, phase detection
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Selfie camera
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Selfie camera5 MP, f/2.016 MP, f/2.0 , 26 mm, 1/3.1" , 1.0 µm
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Selfie camera resolution-4608 x 3456 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-No
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Radio FMFM radio-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 1.0 reversible connector
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USB On-The-GoYesYes
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Bluetoothv4.2v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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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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GALILEO-Yes
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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 (rear-mounted), accelerometer, compass, gyro, proximityAccelerometer, compass, fingerprint, gyro, 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 capacity4100 mAh4500 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Cost
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Price-250 USD
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