Samsung Galaxy A51 5G vs Samsung Galaxy J7 Prime 2
Samsung Galaxy A51 5G
Samsung Galaxy J7 Prime 2
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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, 2100 - global; HSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1, 3, 4, 5, 7, 8, 12, 20, 28, 38, 40, 41 - global-
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5G network5G band 41, 78 SA/NSA/Sub6 - global-
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE-ALTE, Cat4, 150 Mbps download, 50 Mbps upload
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5G speed5G-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-042018-3
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Status2020-042018-4
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Design
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BuildGlass front (Gorilla Glass 3), plastic back, aluminum frameFront glass, aluminum body, plastic ends
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SIMSingle SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
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Height158.9 mm151.7 mm
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Width73.6 mm75 mm
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Thickness8.7 mm8 mm
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Weight187 g170 g
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ColorsBlack, Pink, WhiteBlack, Gold, Rose Gold
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Display
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Display typeSuper AMOLED capacitive touchscreenPLS TFT capacitive touchscreen
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Physical size6.5 inches5.5 inches
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Resolution1080 x 2400 pixels1080 x 1920 pixels
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Pixel density405 ppi401 ppi
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Display colors1677721616777216
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ProtectionScratch resistantCorning Gorilla Glass
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Multitouch-Yes
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Hardware
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CPUOcta-core-
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CPUDual-core 2.2 GHz Cortex-A77Octa-core 1.6 GHz Cortex-A53 ARM
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CPU(second)Hexa-core 1.8 GHz Cortex-A55
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ChipsetExynos 980Exynos 7870 Octa
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GPUMali-G76 MP5Mali-T830 MP1
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Memory RAM6, 8 GB3 GB
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Internal storage128 GB32 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD
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Memory card max512 GB256 GB
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StorageUFS 2.1-
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OS
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OSOne UI 2 (Android 10.0)Android 7.0 (Nougat)
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Main camera
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Camera typeQuad-
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Main camera48 MP, f/2.0 , 26 mm, 1/2.0" , 0.8 µm13 MP, f/1.9 , 28 mm
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12 MP, f/2.2
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5 MP, f/2.4
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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@30/120fps; gyro-EIS1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera 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 autofocusGeo-tagging, HDR, face detection, panorama, touch focus
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DxOMark photo90-
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DxOMark zoom32-
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DxOMark video86-
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DxOMark camera score87-
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Selfie camera
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Selfie camera32 MP, f/2.2 , 26 mm, 1/2.8" , 0.8 µm13 MP, f/1.9
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Selfie camera resolution6560 x 4928 pixels4160 x 3120 pixels
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Selfie camera video1080p@30fps1080p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Notifications-Vibration; MP3, WAV ringtones
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EarpieceYesYes
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Multimedia
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RadioFM radio with RDS, recording-
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Radio FM-FM radio
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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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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Wi-Fi displayYes-
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WLAN WiFi Dual BandYes-
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USBType-C 1.0 reversible connectormicroUSB 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v4.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYes-
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BeidouYes-
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BDS-Yes
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Email-Push Email
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityFingerprint (front-mounted), accelerometer, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity4500 mAh3300 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes-
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Talk time 2G-21 h
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Talk time 3G-21 h
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Cost
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Price510 USD-
