Samsung Galaxy A02s vs Samsung Galaxy S21 Ultra 5G
Samsung Galaxy A02s
Samsung Galaxy S21 Ultra 5G
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
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3G networkHSDPA 850, 900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
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4G networkLTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71
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5G network-5G band SA/NSA/Sub6/mmWave
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE-A (CA), 2000 Mbps download, 200 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2021-022021-01
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Oficially announced2020-112021-01
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Design
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BuildPlasticGlass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame
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SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
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Height164.2 mm165.1 mm
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Width75.9 mm75.6 mm
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Thickness9.1 mm8.9 mm
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Weight196 g227 (Sub6) / 229 (mmWave) g
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Payment-Samsung Pay (Visa, MasterCard certified)
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Waterproof-IP68 (1.5m and 30 mins)
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Dust proof-IP68
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ColorsBlack, WhiteBlack, Brown, Silver, Navy, Titanium
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Display
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Display typePLS IPSDynamic AMOLED 2X
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Physical size6.5 inches6.8 inches
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Resolution720 x 1600 pixels1440 x 3200 pixels
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Pixel density270 ppi515 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, Corning Gorilla Glass Victus
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Display featuresInfinity-V Display120Hz, HDR10+, 1500 nits (peak), Infinity-O display, Always-On display
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DxOMark display score-91
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Hardware
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CPU-Octa-core
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CPUOcta-core 1.8 GHz Cortex-A53Single-core 2.9 GHz Cortex-X1
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CPU(second)Triple-core 2.80 GHz Cortex-A78
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CPU(third)Quad-core 2.2 GHz Cortex-A55
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ChipsetQualcomm SDM450 Snapdragon 450Exynos 2100
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GPUAdreno 506Mali-G78 MP14
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Memory RAM3 GB12, 16 GB
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Internal storage32 GB128, 256, 512 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max1 TB-
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StorageeMMC 5.1UFS 3.1
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OS
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OSAndroid 10, One UI 2.0Android 11, One UI 3.1
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Main camera
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Camera typeTripleQuad
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Main camera(wide) , 13 MP, f/2.2 , 1/3.1" , 1.12 µm(wide) , 108 MP, f/1.8 , 1/1.33" , 0.8 µm, 26 mm
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(macro) , 2 MP, f/2.4(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom
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(depth) , 2 MP, f/2.4(telephoto) , 10 MP, f/2.4 , 70 mm, 1/3.24" , 1.22 µm, 3x optical zoom
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(ultrawide) , 12 MP, f/2.2 , 13 mm, 1/2.55" , 1.4 µm
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Primary camera resolution4160 x 3120 pixels12000 x 9000 pixels
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Primary camera video-8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
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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, macro-modeAutofocus, continuous shooting, digital zoom, optical zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocus
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DxOMark photo-128
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DxOMark zoom-76
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DxOMark video-98
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DxOMark camera score-121
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Selfie camera
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Selfie camera5 MP, f/2.240 MP, f/2.2 , (wide) , 80˚ , 26 mm, 1/2.8" , 0.7 µm
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Selfie camera resolution2560 x 1920 pixels7968 x 5480 pixels
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Selfie camera featuresFace unlockAutofocus, HDR, phase detection autofocus
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Selfie camera video720p@30fps4K@30/60fps, 1080p@30fps
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DxOMark photo-105
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DxOMark video-93
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DxOMark camera score-100
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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Multimedia
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RadioNo-
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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, 802.11ax, 6E
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual Band-Yes
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USBType-C 2.0Type-C 3.2
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USB On-The-Go-Yes
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Bluetoothv4.2v5.2
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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NFCNoYes
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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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SensorsAccelerometerAccelerometer, barometer, 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-Ion
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Battery capacity5000 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesYes
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Wireless reverse charging-Yes
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Fast wireless charging-Qi/PMA
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DxOMark autonomy-48
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DxOMark charging-74
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DxOMark efficiency-53
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DxOMark battery score-57
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Tests and performance
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Antutu92177 (v8)677991 (v8)
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Geekbench(single-core)160 (v5.2)1096 (v5.2)
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Geekbench(multi-core)907 (v5.2)3723 (v5.2)
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SAR value
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SAR(head)-0.77 W/kg
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SAR(body)-1.02 W/kg
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SAR EU(head)0.4 W/kg0.71 W/kg
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SAR EU(body)1.37 W/kg1.58 W/kg
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Cost
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Price180 USD1200 USD