Samsung Galaxy M21 2021 vs vivo iQOO Z7i
Samsung Galaxy M21 2021
vivo iQOO Z7i
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 3, 5, 7, 8, 20, 38, 40, 41LTE frequency band 1, 3, 5, 8, 28, 34, 38, 39, 40, 41
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5G network-5G band 1, 5, 8, 28, 41, 77, 78 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, 603 Mbps download, 102 Mbps uploadLTE, 391 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 announced2021-072023-03
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Status2021-072023-03
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Design
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BuildGlass front, plastic back, plastic frameGlass front, plastic frame, plastic back
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height159 mm164.1 mm
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Width75.1 mm75.6 mm
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Thickness9 mm8.2 mm
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Weight192 g186 g
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ColorsBlack, BlueBlack, Blue
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Display
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Display typeSuper AMOLEDIPS LCD
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Physical size6.4 inches6.51 inches
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Resolution1080 x 2400 pixels720 x 1600 pixels
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Pixel density403 ppi270 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen-
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Display features420 nits (peak), Infinity U Display-
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.3 GHz Cortex-A73Dual-core 2.2 GHz Cortex-A76
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CPU(second)quad-core 1.7 GHz Cortex-A53Hexa-core 2.0 GHz Cortex-A55
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ChipsetExynos 9611Mediatek Dimensity 6020
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GPUMali-G72 MP3Mali-G57 MC2
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Memory RAM4, 6 GB4, 6, 8 GB
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Internal storage64, 128 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max512 GB1 TB
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Storage-UFS 2.2
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OS
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OSAndroid 11, One UI 3.1 CoreAndroid 13, Origin OS Ocean
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Main camera
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Camera typeTripleDual
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Main camera(wide) , 48 MP, f/2.0 , 26 mm, 1/2.0" , 0.8 µm(wide) , 13 MP, f/2.2 , 10x digital zoom
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(ultrawide) , 8 MP, f/2.2 , 123˚ , 1/4.0" , 1.12 µm(macro) , 2 MP, f/2.4
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(depth) , 5 MP, f/2.2
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Primary camera resolution8000 x 6000 pixels4160 x 3120 pixels
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Primary camera video4K@30fps, 1080p@30fps, 720p@240fps, gyro-EIS1080p@30fps
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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, 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 typeSingleSingle
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Selfie camera(wide) , 20 MP, f/2.2 , 26 mm(wide) , 5 MP, f/1.8
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Selfie camera resolution-2560 x 1944 pixels
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Selfie camera featuresFace unlock-
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Selfie camera video1080p@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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Multimedia
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RadioFM radio, RDS, recordingNo
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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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Bluetoothv5.0v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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NFCNoNo
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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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QZSS-Yes
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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 capacity6000 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingFast ChargingVivo Super FlashCharge, 15W
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Talk time 4G49 h-
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Tests and performance
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Antutu186282 (v8)330000 (v9)
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Geekbench(single-core)256 (v5.4)611 (v5.2)
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Geekbench(multi-core)994 (v5.4)1893 (v5.2)
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SAR value
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SAR(head)0.47 W/kg-
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SAR EU(head)0.49 W/kg-
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SAR EU(body)1.13 W/kg-
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Cost
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Price170 USD140 USD
