OPPO A31 2020 128GB - BLACK vs Samsung Galaxy J4 32GB (32GB Storage, 3GB RAM)- BLUE

• Key Features

• • Processor Type
  • Octa core2.3 GHzCortex A53
  • Quad core1.4 GHzCortex A53
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• • Screen Size
  • 6.5 inches
  • 5.5 inches (13.97 cm)
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• • RAM
  • 6 GB
  • 3 GB
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• • Internal Memory
  • 128 GB
  • 32 GB
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• General Features

• • Brand
  • OPPO
  • Samsung
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• • Model Name
  • A31 2020 128GB
  • Galaxy J4 32GB
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• • Color
  • Mystery Black, Fantasy White, Lake Green
  • Black, Blue, Gold
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• • OTG Support
  • --
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• • Custom UI
  • ColorOS
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• • Launch Date
  • March 2, 2020 (Official)
  • June 11, 2018 (Official)
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• Memory & Storage Features

• • Internal Memory
  • 128 GB
  • 32 GB
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• • RAM
  • 6 GB
  • 3 GB
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• • Expandable Memory
  • Up to 256 GB
  • Up to 256 GB
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• Camera Features

• • Front Camera Resolution
  • 8 MP
  • 5 MP
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• • Rear Camera Resolution
  • 12 MP + 2 MP + 2 MP
  • 5 MP f/2.2 Primary Camera
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• • Rear Video Recording
  • 1920x1080 @ 30 fps, 1280x720 @ 30 fps
  • 1920x1080 @ 30 fps
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• • Rear camera Auto Focus
  • Phase Detection autofocus
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• • Rear Camera Flash
  • LED Flash
  • LED Flash
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• • Rear Camera Physical Aperture
  • F2.0
  • F2.2
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• • Rear Camera Setup
  • Single
  • Single
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• • Shooting Modes
  • Continuos Shooting, High Dynamic Range mode (HDR)
  • Continuos Shooting, High Dynamic Range mode (HDR)
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• • Settings
  • Exposure compensation, ISO control
  • Exposure compensation, ISO control
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• • Camera Features
  • Digital Zoom, Auto Flash, Face detection, Touch to focus
  • Digital Zoom, Auto Flash, Face detection, Smile detection, Touch to focus
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• • Rear Camera Sensor
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  • CMOS image sensor
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• OS & Processor Features

• • Processor Chipset
  • MediaTek Helio P35
  • Samsung Exynos 7 Quad 7570
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• • Processor Type
  • Octa core, 2.3 GHz, Cortex A53
  • Quad core, 1.4 GHz, Cortex A53
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• • Processor Architecture
  • 64 bit
  • 64 bit
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• • Operating System
  • Android v9.0 (Pie)
  • Android v8.0 (Oreo)
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• Display Features

• • Screen Size
  • 6.5 inches
  • 5.5 inches (13.97 cm)
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• • Display Type
  • IPS LCD
  • Super AMOLED
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• • GPU
  • PowerVR GE8320
  • Mali-T720 MP1
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• • Screen Resolution
  • 720 x 1600 pixels
  • HD (720 x 1280 pixels)
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• • Aspect Ratio
  • 20:9
  • 16:9
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• • Screen Protection
  • Corning Gorilla Glass v3
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• • Bezel-less display
  • with waterdrop notch
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• • Pixel Density
  • 270 ppi
  • 267 ppi
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• Design Features

• • Height
  • 163.9 mm
  • 151.7 mm
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• • Width
  • 75.5 mm
  • 77.2 mm
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• • Weight
  • 180 grams
  • 175 grams
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• • Build Material
  • Back: Plastic
  • Back: Plastic
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• Battery Features

• • Battery Capacity
  • 4230 mAh
  • 3000 mAh
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• • Battery Type
  • Li-Polymer
  • Li-ion
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• • Talk Time
  • Up to 33 Hours(3G) / Up to 45 Hours(2G)
  • Up to 20 Hours(3G)
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• • Removable Battery
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• • Quick Charging
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• Network & Connectivity

• • SIM Size
  • SIM1: Nano, SIM2: Nano
  • SIM1: Micro, SIM2: Micro
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• • Supported Networks
  • 4G (supports Indian bands), 3G, 2G
  • 4G: Available (supports Indian bands),3G: Available, 2G: Available
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• • VoLTE
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• • SIM 1
  • 4G Bands:TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS:Available EDGE:Available
  • 4G Bands:TD-LTE 2600(band 38) / 2300(band 40) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20)3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS:Available EDGE:Available
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• • SIM 2
  • 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS:Available EDGE:Available
  • 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20)3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS:Available EDGE:Available
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• • SIM Slot(s)
  • Dual SIM, GSM+GSM
  • Dual SIM, GSM+GSM
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• • Wi-Fi Version
  • Wi-Fi 802.11, a/ac/b/g/n
  • Wi-Fi 802.11, b/g/n
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• • Wi-Fi Features
  • Mobile Hotspot
  • Wi-Fi Direct, Mobile Hotspot
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• • GPS
  • with A-GPS, Glonass
  • with A-GPS, Glonass
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• • Bluetooth Support
  • v5.0
  • v4.2
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• • USB Connectivity
  • Mass storage device, USB charging, microUSB 2.0
  • Mass storage device, USB charging, microUSB 2.0
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• • USB Type-C
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• • NFC
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• • SAR Value
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  • Head: 0.478 W/kg
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• Other Features

• • Touch Screen Type
  • Capacitive Touchscreen, Multi-touch
  • Capacitive Touchscreen, Multi-touch
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• Multimedia Features

• • Loudspeaker
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• • Audio Jack
  • 3.5 mm
  • 3.5 mm
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• Special Features

• • Fingerprint Sensor
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• • Fingerprint Sensor Position
  • Rear
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• • Other Sensors
  • Light sensor, Proximity sensor, Accelerometer, Gyroscope
  • Proximity sensor, Accelerometer
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  •