Oppo A91 vs Xiaomi Redmi K20 Pro Premium
Oppo A91
Xiaomi Redmi K20 Pro Premium
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMAGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 1700(AWS), 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 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 speed42.2 Mbps42.2 Mbps
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HSUPA speed11.5 Mbps5.76 Mbps
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EV-DO speed-3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE-ALTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-122019-9
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Status2019-122019-9
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Design
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BuildAluminium alloy, glassAluminium alloy, glass
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height160.2 mm156.7 mm
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Width73.3 mm74.3 mm
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Thickness7.9 mm8.8 mm
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Weight172 g191 g
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ColorsDark blue, Blue, RedBlack, Blue, Red, Honey, White
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Display
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Display typeAMOLED capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size6.4 inches6.39 inches
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Resolution1080 x 2400 pixels1080 x 2340 pixels
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Pixel density411 ppi403 ppi
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Display colors1677721616777216
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ProtectionScratch resistantScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 6
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MultitouchYesYes
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Display features-HDR10, DCI-P3, Always-on-display
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.1 GHz Cortex-A73Single-core 2.96 GHz Kryo 485
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CPU(second)quad-core 2.0 GHz Cortex-A53Triple-core 2.42 GHz Kryo 485
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CPU(third)Quad-core 1.8 GHz Kryo 485
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ChipsetMediatek MT6771V Helio P70Qualcomm SDM855 Snapdragon 855+
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GPUMali-G72 MP3Adreno 640
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Memory RAM8 GB8, 12 GB
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Internal storage128 GB128, 512 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max256 GB-
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OS
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OSColorOS 6.1 (Android 9.0 Pie)MIUI 11 (Android 10)
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Main camera
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Camera typeQuadTriple
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Main camera48 MP, f/1.8 , 26 mm, 1/2.0" , 0.8 µm48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm, 2x optical zoom
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8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm8 MP, f/2.4 , 53 mm, 1/4" , 1.12 µm
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2 MP, f/2.4 , 1/5" , 1.75 µm13 MP, f/2.4 , 1/3" , 1.12 µm, 12 mm
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2 MP, f/2.4 , 1/5" , 1.75 µm
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Primary camera resolution8000 x 6000 pixels8000 x 6000 pixels
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Primary camera video2160p@30fps2160p@30/60fps, 1080p@30/120/240fps, 1080p@960fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocusAutofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, RAW
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Selfie camera
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Selfie camera16 MP, f/2 , 26 mm, 1/3.1" , 1.0 µm20 MP, f/2.2 , 0.8 µm
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Selfie camera resolution4608 x 3456 pixels5184 x 3880 pixels
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Selfie camera video1080p@30fps1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioFM RadioYes
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-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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Wi-Fi displayYesYes
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WLAN WiFi Dual BandYesYes
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USBType-C 1.0 reversible connectorType-C 1.0 reversible connector
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USB On-The-GoYesYes
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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NFC-Yes
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GPSYes, with A-GPSYes, with dual-band A-GPS
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GLONASSYesYes
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GALILEO-Yes
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BeidouYesYes
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximity, lightAccelerometer, barometer, compass, fingerprint, gyroscope, hall, proximity, step counter, step detector, in-display fingerprint sensor
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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 capacity4025 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingVOOC Flash Charge 4.0 (50% in 30 min)Qualcomm Quick Charge 4+
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Cost
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Price290 USD500 USD
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