Samsung Galaxy M51 vs vivo Y21a
Samsung Galaxy M51
vivo Y21a
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66LTE frequency band 1, 3, 5, 8, 38, 40, 41
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 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-A, (2CA) Cat6, 400 Mbps download, 50 Mbps uploadLTE, 301 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 announced2020-082022-01
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Status2020-092022-01
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Design
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BuildGlass front (Gorilla Glass 3), plastic back, plastic frameGlass front, plastic frame, plastic back
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.9 mm164.3 mm
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Width76.3 mm76.1 mm
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Thickness9.5 mm8 mm
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Weight213 g182 g
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ColorsBlack, BlueBlue, Diamond Glow
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Display
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Display typeSuper AMOLED PlusIPS LCD
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Physical size6.7 inches6.51 inches
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Resolution1080 x 2400 pixels720 x 1600 pixels
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Pixel density393 ppi270 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 3-
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Hardware
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CPUOcta-core-
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CPUQuad-core 2.2 GHz Kryo 470 GoldOcta-core 2.0 GHz Cortex-A53
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CPU(second)Hexa-core 1.8 GHz Kryo 470 Silver
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ChipsetQualcomm SDM730 Snapdragon 730GMediatek MT6762 Helio P22
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GPUAdreno 618Mali-G52 MC2
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Memory RAM6, 8 GB4 GB
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Internal storage128 GB64 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max512 GB1 TB
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StorageUFS 2.1-
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OS
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OSAndroid 10, One UI 2.5Android 11, Funtouch 11.1
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Main camera
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Camera typeQuadDual
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Main camera(wide) , 64 MP, f/1.8 , 26 mm, 1/1.73" , 0.8 µm(wide) , 13 MP, f/2.2
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(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm(macro) , 2 MP, f/2.4
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(macro) , 5 MP, f/2.4
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(depth) , 5 MP, f/2.4 , 1.12 µm
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Primary camera resolution9280 x 6944 pixels4160 x 3120 pixels
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Primary camera video4K@30fps, 1080p@30fps1080p@30fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, 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, phase detection autofocusAutofocus, 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 camera(wide) , 32 MP, f/2.0 , 26 mm, 1/2.8" , 0.8 µm(wide) , 8 MP, f/1.8
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Selfie camera resolution6560 x 4928 pixels3264 x 2448 pixels
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Selfie camera features-Face unlock
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Selfie camera video4K@30fps, 1080p@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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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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WLAN WiFi Dual BandYesYes
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USBType-C 2.0Type-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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NFCYesNo
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDSYesYes
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityAccelerometer, compass, fingerprint, 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 capacity7000 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes (100% in 115 min)Quick Charge, 18W
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Reverse chargingYesYes
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DxOMark autonomy96-
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DxOMark charging61-
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DxOMark efficiency87-
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DxOMark battery score88-
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Tests and performance
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Antutu275000 (v8)90180 (v8)
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Geekbench(single-core)1592 (v5.2)363 (v5.2)
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Geekbench(multi-core)4211 (v5.2)1353 (v5.2)
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SAR value
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SAR(head)1.38 W/kg-
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SAR EU(head)0.61 W/kg-
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SAR EU(body)1.45 W/kg-
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Cost
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Price440 USD190 USD
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Multimedia
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Radio-FM Radio
