Oppo A1k vs vivo V21 5G
Oppo A1k
vivo V21 5G
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkWCDMA 850, 900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 40(2300), 41(2500)LTE frequency band 1, 2, 3, 4, 5, 8, 34, 38, 40, 41 - India
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5G network-5G band 78 Sub6 - India
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE Cat 4, 150.8 Mbps download, 51 Mbps uploadLTE-A, 1200 Mbps download, 151 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-42021-04
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Status2019-52021-05
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Design
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BuildPlastic bodyGlass front, plastic frame, plastic back
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SIMDual SIM (Nano-SIM, dual SIM stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height154.5 mm159.7 mm
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Width73.8 mm73.9 mm
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Thickness8.4 mm7.3 mm
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Weight170 g176 g
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ColorsBlack, RedBlue, Sunset Dazzle, White
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Display
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Display typeIPS capacitive touchscreenAMOLED
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Physical size6.1 inches6.44 inches
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Resolution720 x 1560 pixels1080 x 2400 pixels
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Pixel density282 ppi409 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3Scratch resistant, 2.5D curved glass screen
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MultitouchYes-
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Display features-90Hz, HDR10+, 500 nits (typ)
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2 GHz Cortex-A53Dual-core 2.4 GHz Cortex-A76
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CPU(second)quad-core 1.5 GHz Cortex-A53Hexa-core 2.0 GHz Cortex-A55
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ChipsetMediatek Helio P22 (MT6762)MediaTek MT6853 Dimensity 800U 5G
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GPUPowerVR GE8320Mali-G57 MC3
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Memory RAM2 GB8 GB
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Internal storage32 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max256 GB-
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Storage-UFS 2.2
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OS
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OSColorOS 6.0 (Android 9.0 Pie)Android 11, Funtouch 11.1
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Main camera
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Camera typeSingleTriple
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Main camera8 MP, f/2.2 , 1/3.2" , 1.4 µm64 MP, f/1.8 , 1/1.72" , 0.8 µm, (wide) , 26 mm
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(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
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(macro) , 2 MP, f/2.4
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Primary camera resolution3264 x 2448 pixels9280 x 6920 pixels
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Primary camera video1080p@30fps4K@30fps (no OIS), 1080p@30/60fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detectionAutofocus, continuous shooting, digital zoom, digital 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
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Selfie camera
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Selfie camera type-Single
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Selfie camera5 MP, f/2 , 1/5" , 1.12 µm44 MP, f/2.0 , (wide)
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Selfie camera resolution2560 x 1920 pixels-
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Selfie camera features-Autofocus, face unlock, HDR
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Selfie camera video720p@30fps4K@30fps (no OIS), 1080p@30fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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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 802.11b, 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 Direct-Yes
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Wi-Fi displayYes-
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv4.2v5.1
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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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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Features
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SensorsAccelerometer, proximity, light, compass, fingerprintAccelerometer, 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 capacity4000 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes (63% in 30 min)
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Tests and performance
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Antutu-343150 (v8)
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Geekbench(single-core)-588 (v5)
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Geekbench(multi-core)-1687 (v5)
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SAR value
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SAR(head)-1.05 W/kg
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SAR(body)-0.87 W/kg
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Cost
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Price-410 USD
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