Oppo A91 vs Oppo K9
Oppo A91
Oppo K9
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMAGSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 1700(AWS), 1900, 2100HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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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, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
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5G network-5G band 1, 3, 28, 41, 77, 78 SA/NSA
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed11.5 Mbps5.76 Mbps
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LTE speedLTE-ALTE-A, 1200 Mbps download, 210 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-122021-05
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Status2019-122021-05
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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 mm159.1 mm
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Width73.3 mm73.4 mm
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Thickness7.9 mm7.9 mm
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Weight172 g172 g
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ColorsDark blue, Blue, RedAurora, Black
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Display
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Display typeAMOLED capacitive touchscreenSuper AMOLED
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Physical size6.4 inches6.43 inches
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Resolution1080 x 2400 pixels1080 x 2400 pixels
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Pixel density411 ppi409 ppi
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Display colors1677721616777216
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ProtectionScratch resistantScratch resistant, 2.5D curved glass screen
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MultitouchYes-
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Display features-90Hz, 430 nits (typ), 750 nits (peak)
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.1 GHz Cortex-A73Single-core 2.8 GHz Kryo 475 Prime
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CPU(second)quad-core 2.0 GHz Cortex-A53Single-core 2.4 GHz Kryo 475 Gold
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CPU(third)Hexa-core 1.8 GHz Kryo 475 Silver
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ChipsetMediatek MT6771V Helio P70Qualcomm SM7250-AC Snapdragon 768G 5G
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GPUMali-G72 MP3Adreno 620
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Memory RAM8 GB8 GB
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Internal storage128 GB128, 256 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)Android 11, ColorOS 11.1
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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 µm64 MP, f/1.7 , 1/2.0" , 0.8 µm, (wide) , 80˚ , 20x digital zoom
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8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm8 MP, f/2.2 , (ultrawide) , 119˚
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2 MP, f/2.4 , 1/5" , 1.75 µm2 MP, f/2.4 , (macro)
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2 MP, f/2.4 , 1/5" , 1.75 µm
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Primary camera resolution8000 x 6000 pixels9280 x 6920 pixels
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Primary camera video2160p@30fps4K@30fps, 1080p@30/60/120fps; gyro-EIS
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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 autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, contrast detection autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera16 MP, f/2 , 26 mm, 1/3.1" , 1.0 µm32 MP, f/2.4 , 0.8 µm, (wide) , 80˚
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Selfie camera resolution4608 x 3456 pixels6560 x 4928 pixels
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Selfie camera features-Face unlock, digital image stabilization
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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 RadioNo
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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 displayYes-
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WLAN WiFi Dual BandYesYes
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USBType-C 1.0 reversible connectorType-C 2.0
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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-No
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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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BeidouYes-
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BDS-Yes
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QZSS-Yes
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximity, lightAccelerometer, compass, fingerprint, gyroscope, 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 capacity4025 mAh4300 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingVOOC Flash Charge 4.0 (50% in 30 min)VOOC 4.0 (100% in 35 min)
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Cost
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Price290 USD310 USD
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Tests and performance
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Antutu-449750 (v8)
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Geekbench(single-core)-602 (v5.2)
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Geekbench(multi-core)-1877 (v5.2)