Oppo A9 (2020) vs Xiaomi Redmi 4 (4X)
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Oppo A9 (2020)
Xiaomi Redmi 4 (4X)
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; GSM 900, 1800 - India
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3G networkHSDPA 800, 900, 2100HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO & TD-SCDMA - China; HSDPA 900, 2100 - India
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) - China; LTE frequency band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) - India
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE-A (2CA) Cat6, 603 Mbps download, 102 Mbps upload-
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LTE-A speed-LTE-A, (2CA) Cat6, 300 Mbps download, 100 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-92017-5
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Status2019-92017-5
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Design
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BuildPlastic-
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)
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Height163.6 mm139.2 mm
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Width75.6 mm70 mm
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Thickness9.1 mm8.7 mm
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Weight195 g150 g
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ColorsGreen, PurpleBlack, Gold
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size6.5 inches5.0 inches
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Resolution720 x 1600 pixels720 x 1280 pixels
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Pixel density270 ppi294 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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CPUOcta-core-
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CPUQuad-core 2.0 GHz Kryo 260 GoldOcta-core 1.4 GHz Cortex-A53 ARM
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CPU(second)quad-core 1.8 GHz Kryo 260 Silver
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ChipsetQualcomm SDM665 Snapdragon 665Qualcomm MSM8940 Snapdragon 435
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GPUAdreno 610Adreno 505
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Memory RAM4, 8 GB2, 3, 4 GB
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Internal storage128 GB16, 32, 64 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD(uses second SIM slot)
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Memory card max256 GB128 GB
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StorageUFS 2.1-
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OS
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OSColorOS 6.1 (Android 9.0 Pie)Android 6.0.1 (Marshmallow)
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Main camera
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Camera typeQuad-
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Main camera12 MP, f/1.8 , 1/2.3" , 0.8 µm13 MP, f/2.0
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8 MP, f/2.3 , 13 mm, 1/4" , 1.12 µm
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2 MP, f/2.4 , 1.75 µm
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2 MP, f/2.4 , 1/5" , 1.75 µm
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Primary camera resolution8000 x 6000 pixels-
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Primary camera video2160p@30fps, 1080p@30fps, gyro-EIS1080p@30fps
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Primary camera Autofocus-phase detection autofocus
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, night mode, phase detection autofocusGeo-tagging, HDR, face/smile detection, panorama, touch focus
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Selfie camera
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Selfie camera16 MP, f/2.0 , 1/3.1" , 1.0 µm5 MP, f/2.2
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Selfie camera resolution4640 x 3488 pixels-
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Selfie camera video1080p@30fps1080p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Notifications-Vibration; MP3, WAV ringtones
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EarpieceYes-
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Multimedia
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RadioFM Radio-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHzWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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Wi-Fi displayYes-
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WLAN WiFi Dual BandYes-
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-GoYes-
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Bluetoothv5.0v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Infrared-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYes-
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BeidouYes-
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BDS-Yes
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Mail-Push Mail
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Java-No
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SensorsAccelerometer, fingerprint, geomagnetic, gyroscope, light, proximityFingerprint (rear-mounted), accelerometer, compass, gyro, 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 capacity5000 mAh4100 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes-
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Wireless chargingYes-
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Wireless reverse chargingYes-
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Talk time 3G-36 h
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Standby time 3G-432 h
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Cost
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Price240 USD-
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