Samsung Galaxy S21 Ultra 5G vs ZTE Blade A3 (2019)
Samsung Galaxy S21 Ultra 5G
ZTE Blade A3 (2019)
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMAGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DOHSDPA 850, 900, 1900
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4G networkLTE 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, 71LTE frequency band 1(2100), 5(850), 8(900), 3(1800), 7(2600), 18(800), 38(2600)
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5G network5G band SA/NSA/Sub6/mmWave-
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HSDPA speed42.2 Mbps42 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE-A (CA), 2000 Mbps download, 200 Mbps uploadLTE Cat 4, 150.8 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2021-012019-4
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Status2021-012019-4
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Design
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BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum framePlastic
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SIMSingle SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)Nano-SIM
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Height165.1 mm137.35 mm
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Width75.6 mm67.5 mm
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Thickness8.9 mm10.5 mm
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Weight227 (Sub6) / 229 (mmWave) g144 g
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PaymentSamsung Pay (Visa, MasterCard certified)-
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WaterproofIP68 (1.5m and 30 mins)-
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Dust proofIP68-
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ColorsBlack, Brown, Silver, Navy, TitaniumBlack, Blue
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Display
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Display typeDynamic AMOLED 2XIPS capacitive touchscreen
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Physical size6.8 inches5 inches
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Resolution1440 x 3200 pixels480 x 960 pixels
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Pixel density515 ppi215 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla Glass Victus-
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Multitouch-Yes
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Display features120Hz, HDR10+, 1500 nits (peak), Infinity-O display, Always-On display-
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DxOMark display score91-
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Hardware
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CPUOcta-core-
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CPUSingle-core 2.9 GHz Cortex-X1Quad-core 1.4 GHz Cortex-A53
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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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ChipsetExynos 2100Spreadtrum SC9832E
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GPUMali-G78 MP14Mali-T820 MP1
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Memory RAM12, 16 GB1 GB
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Internal storage128, 256, 512 GB16 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-128 GB
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StorageUFS 3.1-
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OS
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OSAndroid 11, One UI 3.1Android 9.0 Pie
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Main camera
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Camera typeQuadSingle
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Main camera(wide) , 108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm8 MP
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(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom
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(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 resolution12000 x 9000 pixels3264 x 2448 pixels
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Primary camera video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS720p@30fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, 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 autofocusAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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DxOMark photo128-
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DxOMark zoom76-
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DxOMark video98-
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DxOMark camera score121-
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Selfie camera
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Selfie camera(wide) , 40 MP, f/2.2 , 80˚ , 26 mm, 1/2.8" , 0.7 µm5 MP
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Selfie camera resolution7968 x 5480 pixels2560 x 1920 pixels
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Selfie camera featuresAutofocus, HDR, phase detection autofocus-
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Selfie camera video4K@30/60fps, 1080p@30fps480p@30fps
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DxOMark photo105-
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DxOMark video93-
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DxOMark camera score100-
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Sound
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3.5mm jackNoYes
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LoudspeakerYes, with stereo speakersYes
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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, 802.11ac, 802.11ax, 6EWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBType-C 3.2microUSB 2.0
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USB On-The-GoYes-
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Bluetoothv5.2v4.2
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Bluetooth A2DPYesYes
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bluetooth AVRCP-Yes
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bluetooth FTP-Yes
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bluetooth GAVDP-Yes
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bluetooth HFP-Yes
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bluetooth OPP-Yes
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bluetooth LEYes-
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bluetooth GOEP-Yes
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bluetooth MAP-Yes
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bluetooth OBEX-Yes
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bluetooth PBAP-PBAP/PAB
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bluetooth HSP-Yes
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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GALILEOYes-
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BDSYes-
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Features
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SensorsAccelerometer, barometer, compass, fingerprint, gyroscope, proximityAccelerometer
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity5000 mAh2000 mAh
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Battery removableNon-removableRemovable
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Fast battery chargingYes-
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Wireless reverse chargingYes-
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Fast wireless chargingQi/PMA-
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DxOMark autonomy48-
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DxOMark charging74-
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DxOMark efficiency53-
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DxOMark battery score57-
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Tests and performance
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Antutu677991 (v8)-
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Geekbench(single-core)1096 (v5.2)-
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Geekbench(multi-core)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)0.71 W/kg-
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SAR EU(body)1.58 W/kg-
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Cost
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Price1200 USD-
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Multimedia
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Radio-FM Radio