Samsung Galaxy A21s vs Samsung Galaxy Z Flip4
Samsung Galaxy A21s
Samsung Galaxy Z Flip4
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
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4G networkLTE frequency band 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 28, 29, 34, 38, 39, 40, 41, 66
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5G network-5G band 1, 3, 20, 41, 77, 78, 79, 81 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, 151 Mbps download, 51 Mbps uploadLTE-A (6CA)
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-052022-08
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Status2020-062022-08
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Design
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BuildPlasticPlastic front (opened), glass back (Gorilla Glass Victus+), aluminum frame
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SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)Nano-SIM, eSIM
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Height163.7 mm84.9 mm
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Width75.3 mm71.9 mm
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Thickness8.9 mm15.9-17.1 mm
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Height unfolded-165.2 mm
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Width unfolded-71.9 mm
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Thickness unfolded-6.9 mm
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Weight192 g187 g
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Payment-Samsung Pay (Visa, MasterCard certified)
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Waterproof-IPX8, 1.5m and 30 minutes
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ColorsBlack, Blue, Red, WhiteBlue, Pink Gold, Graphite, Khaki, Navy, Purple, Red, Yellow
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Display
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Display typePLS TFT capacitive touchscreenFoldable Dynamic AMOLED 2X
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Physical size6.5 inches6.7 inches
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Resolution720 x 1600 pixels1080 x 2640 pixels
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Pixel density270 ppi426 ppi
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Display colors1677721616777216
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Display features-120Hz, HDR10+, 1200 nits (peak)
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Cover display-Super AMOLED
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Cover display physical size-1.9 inches
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Cover display resolution-260 x 512 pixels
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.0 GHz Cortex-A55Single-core 3.19 GHz Cortex-X2
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CPU(second)quad-core 2.0 GHz Cortex-A55Triple-core 2.75 GHz Cortex-A710
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CPU(third)Quad-core 1.8 GHz Cortex-A510
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ChipsetExynos 850Qualcomm SM8475 Snapdragon 8+ Gen 1
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GPUMali-G52Adreno 730
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Memory RAM3, 4, 6 GB8 GB
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Internal storage32, 64 GB128, 256, 512 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max512 GB-
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Storage-UFS 3.1
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OS
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OSOne UI 2.0(Android 10)Android 12, One UI 4.1.1
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Main camera
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Camera typeQuadDual
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Main camera48 MP, f/2.0 , 26 mm, 1/2.0" , 0.8 µm12 MP, f/1.8 , 24 mm, 1.8 µm, (wide) , 83˚ , 10x digital zoom
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8 MP, f/2.2 , 1/4.0" , 1.12 µm12 MP, f/2.2 , 1.12 µm, (ultrawide) , 123˚
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2 MP, f/2.4
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2 MP, f/2.4
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Primary camera resolution8000 x 6000 pixels4032 x 3024 pixels
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Primary camera video1080p@30fps4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+
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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-modeAutofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, tracking autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera13 MP, f/2.2 , 1/3.1" , 1.12 µm10 MP, f/2.4 , 1.22 µm, (wide) , 80˚ , 26 mm
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Selfie camera resolution4160 x 3120 pixels-
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Selfie camera features-Autofocus, face unlock, HDR
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Selfie camera video1080p@30fps4K@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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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
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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 1.0 reversible connectorType-C 2.0
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USB On-The-Go-Yes
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Bluetoothv5.0v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYes (market dependent)Yes
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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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BeidouYes-
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BDS-Yes
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Features
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SensorsAccelerometer, fingerprint, geomagnetic, gyroscope, proximityAccelerometer, 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-Po
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Battery capacity5000 mAh3700 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesQuick Charge, 25W (50% in 30 min)
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Wireless reverse charging-Yes, 4.5W
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Fast wireless charging-Qi, 15W
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Cost
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Price200 USD1000 USD
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Multimedia
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Radio-No
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Tests and performance
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Antutu-1010000 (v9)
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Geekbench(single-core)-1277 (v5.4)
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Geekbench(multi-core)-3642 (v5.4)