Samsung Galaxy Quantum 2 vs vivo iQOO Z7 (China)
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Samsung Galaxy Quantum 2
vivo iQOO Z7 (China)
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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-A
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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-Polycarbonate
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SIMNano-SIMDual SIM (Nano-SIM, dual stand-by)
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Height161.9 mm164.6 mm
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Width73.8 mm75.6 mm
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Thickness8.1 mm8.8 mm
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Weight176 g201.5 g
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ColorsBlack, Violet, WhiteBlack, Blue, Orange
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Display
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Display typeDynamic AMOLED 2XIPS LCD
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Physical size6.7 inches6.64 inches
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Resolution1440 x 3200 pixels1080 x 2388 pixels
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Pixel density524 ppi395 ppi
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Display colors1677721616777216
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Display features120Hz, 1200 nits (peak), 120Hz@FHD / 60Hz@QHD refresh rate120Hz, HDR10
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.96 GHz Kryo 485Single-core 2.7 GHz Cortex-A78
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CPU(second)Triple-core 2.42 GHz Kryo 485Triple-core 2.4 GHz Cortex-A78
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CPU(third)Quad-core 1.78 GHz Kryo 485Quad-core 1.8 GHz Cortex-A55
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ChipsetQualcomm SM8150 Snapdragon 855+ (7 nm), QRNG security chipsetQualcomm Snapdragon 782G
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GPUAdreno 640Adreno 642L
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Memory RAM6 GB8, 12 GB
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Internal storage128 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max1 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 3
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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) , 64 MP, f/1.8 , 1/1.97" , 0.7 µm
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(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm(depth) , 2 MP, f/2.4
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(macro) , 5 MP, f/2.4
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Primary camera resolution-9280 x 6920 pixels
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Primary camera video4K@30fps, 1080p@30/60/240fps; gyro-EIS4K@30fps, 1080p@30fps
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Primary camera flashLED flashdual-LED dual-tone flash
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Camera featuresHDR, PanoramaAutofocus, 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 camera(wide) , 10 MP, f/2.2(wide) , 16 MP, f/2.5
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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, 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 2.0Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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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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GALILEOYesYes
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BDSYesYes
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, 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-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 ChargingYes, 120W
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Talk time 4G46 h-
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Tests and performance
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Antutu476000 (v8)-
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Cost
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Price620 USD240 USD
