Samsung Galaxy Quantum 2 vs vivo iQOO Z7i
Samsung Galaxy Quantum 2
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, 1700(AWS), 1900, 2100HSDPA 850, 900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66LTE frequency band 1, 3, 5, 8, 28, 34, 38, 39, 40, 41
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5G network5G band 78 Sub65G 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-A, 2000 Mbps download, 150 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 announced2021-042023-03
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Status2021-042023-03
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Design
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Build-Glass front, plastic frame, plastic back
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SIMNano-SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
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Height161.9 mm164.1 mm
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Width73.8 mm75.6 mm
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Thickness8.1 mm8.2 mm
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Weight176 g186 g
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ColorsBlack, Violet, WhiteBlack, Blue
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Display
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Display typeDynamic AMOLED 2XIPS LCD
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Physical size6.7 inches6.51 inches
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Resolution1440 x 3200 pixels720 x 1600 pixels
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Pixel density524 ppi270 ppi
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Display colors1677721616777216
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Display features120Hz, 1200 nits (peak), 120Hz@FHD / 60Hz@QHD refresh rate-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.96 GHz Kryo 485Dual-core 2.2 GHz Cortex-A76
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CPU(second)Triple-core 2.42 GHz Kryo 485Hexa-core 2.0 GHz Cortex-A55
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CPU(third)Quad-core 1.78 GHz Kryo 485
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ChipsetQualcomm SM8150 Snapdragon 855+ (7 nm), QRNG security chipsetMediatek Dimensity 6020
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GPUAdreno 640Mali-G57 MC2
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Memory RAM6 GB4, 6, 8 GB
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Internal storage128 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max1 TB1 TB
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Storage-UFS 2.2
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OS
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OSAndroid 11, One UI 3.1Android 13, Origin OS Ocean
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Main camera
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Camera typeTripleDual
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Main camera(wide) , 64 MP, f/1.8 , 26 mm, 1/1.7x" , 0.8 µm(wide) , 13 MP, f/2.2 , 10x digital zoom
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(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm(macro) , 2 MP, f/2.4
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(macro) , 5 MP, f/2.4
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video4K@30fps, 1080p@30/60/240fps; gyro-EIS1080p@30fps
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Primary camera flashLED flashLED flash
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Camera featuresHDR, PanoramaAutofocus, 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) , 10 MP, f/2.2(wide) , 5 MP, f/1.8
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Selfie camera resolution-2560 x 1944 pixels
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Selfie camera featuresHDR-
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Selfie camera video1080p@30fps1080p@30fps
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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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Multimedia
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RadioNoNo
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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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NFCYesNo
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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 capacity4500 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 4G46 h-
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Tests and performance
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Antutu476000 (v8)330000 (v9)
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Geekbench(single-core)-611 (v5.2)
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Geekbench(multi-core)-1893 (v5.2)
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Cost
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Price620 USD140 USD
