Google Pixel 4a vs Oppo A91
Google Pixel 4a
Oppo A91
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 66, 71LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed42 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps11.5 Mbps
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EV-DO speed3.1 Mbps download, 1.8 Mbps upload-
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LTE speedLTE-A (3CA) Cat 12, 600 Mbps download, 75 Mbps uploadLTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-082019-12
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Status2020-082019-12
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Design
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BuildGlass front (Gorilla Glass 3), plastic back, plastic frameAluminium alloy, glass
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SIMNano-SIM and/or eSIMDual SIM (Nano-SIM, dual stand-by)
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Height144 mm160.2 mm
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Width69.4 mm73.3 mm
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Thickness8.2 mm7.9 mm
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Weight143 g172 g
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ColorsBlackDark blue, Blue, Red
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Display
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Display typeOLED capacitive touchscreenAMOLED capacitive touchscreen
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Physical size5.81 inches6.4 inches
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Resolution1080 x 2340 pixels1080 x 2400 pixels
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Pixel density443 ppi411 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla Glass 3Scratch resistant
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Multitouch-Yes
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Display featuresHDR, Always-on display-
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Hardware
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CPUOcta-coreOcta-core
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CPUDual-core 2.2 GHz Kryo 470 GoldQuad-core 2.1 GHz Cortex-A73
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CPU(second)Hexa-core 1.8 GHz Kryo 470 Silverquad-core 2.0 GHz Cortex-A53
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ChipsetQualcomm SDM730 Snapdragon 730GMediatek MT6771V Helio P70
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GPUAdreno 618Mali-G72 MP3
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Memory RAM6 GB8 GB
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Internal storage128 GB128 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-256 GB
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StorageUFS 2.1-
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OS
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OSAndroid 10ColorOS 6.1 (Android 9.0 Pie)
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Main camera
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Camera typeSingleQuad
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Main camera12 MP, f/1.7 , 27 mm, 1/2.55" , 1.4 µm48 MP, f/1.8 , 26 mm, 1/2.0" , 0.8 µm
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8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm
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2 MP, f/2.4 , 1/5" , 1.75 µm
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2 MP, f/2.4 , 1/5" , 1.75 µm
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Primary camera resolution4032 x 3024 pixels8000 x 6000 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps; gyro-EIS2160p@30fps
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Primary camera flashdual LED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, optical 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, phase detection autofocusAutofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus
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DxOMark photo122-
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DxOMark zoom34-
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DxOMark video98-
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DxOMark camera score111-
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Selfie camera
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Selfie camera8 MP, f/2.0 , 24 mm, 1.12 µm16 MP, f/2 , 26 mm, 1.0 µm, 1/3.1"
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Selfie camera resolution3264 x 2448 pixels4608 x 3456 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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LoudspeakerYes, with stereo speakersYes
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EarpieceYesYes
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Multimedia
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RadioNoFM Radio
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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 display-Yes
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WLAN WiFi Dual BandYesYes
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USBType-C reversible connectorType-C 1.0 reversible connector
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USB On-The-Go-Yes
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptXaptX HD-
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NFCYes-
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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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Beidou-Yes
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QZSSYes-
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Features
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SensorsAccelerometer, barometer, compass, fingerprint, gyroscope, proximityAccelerometer, compass, fingerprint, gyroscope, proximity, light
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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 capacity3140 mAh4025 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesVOOC Flash Charge 4.0 (50% in 30 min)
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Cost
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Price350 USD290 USD
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