ZTE Blade A51 vs vivo V21s
ZTE Blade A51
vivo V21s
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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, 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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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, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
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5G network-5G band 1, 28, 40, 41, 77, 78, 79 SA/NSA
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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, Cat6, 301 Mbps download, 51 Mbps uploadLTE-A, Cat12, 1200 Mbps download, 150 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2021-052022-11
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Status2021-052022-11
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Design
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BuildPolycarbonatePlastic
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height166.5 mm159.7 mm
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Width75.6 mm73.9 mm
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Thickness8.5 mm7.3 mm
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Weight173 g176 / 177 g
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ColorsBlue, GrayBlue, Gradient
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Display
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Display typeIPS LCDAMOLED
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Physical size6.52 inches6.44 inches
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Resolution720 x 1600 pixels1080 x 2404 pixels
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Pixel density269 ppi409 ppi
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Display colors1677721616777216
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Protection-Scratch resistant
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 1.6 GHz Cortex-A55Dual-core 2.4 GHz Cortex-A76
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CPU(second)quad-core 1.2 GHz Cortex-A55Hexa-core 2.0 GHz Cortex-A55
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ChipsetUnisoc SC9863AMediaTek MT6853 Dimensity 800U
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GPUIMG8322Mali-G57 MC3
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Memory RAM2 GB8 GB
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Internal storage32, 64 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max512 GB-
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Storage-UFS 2.2
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OS
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OSAndroid 11 Go EditionAndroid 12, Funtouch 12
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Main camera
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Camera typeDualTriple
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Main camera13 MP64 MP, (wide) , f/1.8 , 26 mm, 0.7 µm
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2 MP8 MP, (ultrawide) , 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 resolution4160 x 3120 pixels9280 x 6920 pixels
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Primary camera video1080p@30fps4K@30fps, 1080p@30/60fps
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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, optical 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 typeSingleSingle
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Selfie camera5 MP, f/2.0 , 1.0 µm44 MP, f/2.0 , (wide) , 150 mm
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Selfie camera resolution2560 x 1920 pixels-
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Selfie camera featuresFace unlock, face detectionAutofocus, face unlock, HDR, optical image stabilization
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Selfie camera video1080p@30fps4K@30fps, 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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RadioFM 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
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WLAN WiFi HotspotYes-
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WLAN WiFi Dual Band-Yes
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USBType-C 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 LEYesYes
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NFCYesYes
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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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BDS-Yes
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Features
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SensorsAccelerometer, fingerprint, proximityAccelerometer, 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-IonLi-Po
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Battery capacity3200 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesYes, 33W (63% in 30 min)
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Tests and performance
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Antutu101300 (v8)368414 (v9)
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Geekbench(single-core)147 (v5.2)363 (v5.2)
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Geekbench(multi-core)808 (v5.2)1353 (v5.2)
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Cost
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Price90 USD360 USD