Oppo F31 Pro vs Samsung Galaxy A8 Plus 2018

Key Specs

Battery
-	3500 mAh
Display
-	6 inches (15.24 cm)
Front Camera
-	16 MP + 8 MP
Processor
-	Samsung Exynos 7 Octa 7885
RAM
-	6 GB
Rear Camera
-	16 MP

Battery

Capacity
5500mAh	3500 mAh
Quick Charging
80W SuperVOOC fast charging	Yes, Fast
Removable
-	No
TalkTime
-	Up to 23 Hours(3G)
Type
-	Li-ion
USB Type-C
Yes	Yes

Camera

Front Camera
32MP	-
Rear Camera
50MP + 8MP + 2MP	-

Design

Build Material
Aerospace-grade aluminum alloy	-
Colours
Gemstone Blue, Himalayan White, Festival Pink	Black, Gold
Height
-	159.9 mm
Ruggedness
-	Dust proof
Thickness
-	8.3 mm
Water Resistance
IP68 and IP69 ratings	-
Waterproof
-	Yes, Water resistant, IP68
Weight
-	191 grams
Width
-	75.7 mm

Display

Aspect Ratio
-	18.5:9
Bezel-less display
-	Yes
Display Type
FHD+ AMOLED	Super AMOLED
Pixel Density
-	411 ppi
Refresh Rate
120Hz	-
Resolution
-	1080x2220 px (FHD+)
Screen Protection
-	Yes
Screen Size
6.78-inch	6 inches (15.24 cm)
Screen to Body Ratio (calculated)
-	75.82 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

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Front Camera

Autofocus
-	No
Camera Features
-	Fixed Focus
Camera Setup
-	Dual
Flash
-	No
Resolution
-	16 MP f/1.9, Primary Camera(27 mm focal length, 3.1" sensor size, 1µm pixel size)8 MP Camera(4.0" sensor size, 1.12µm pixel size)

General

Brand
Oppo	Samsung
Custom UI
ColorOS 15	-
Launch Date
September 15, 2025	January 20, 2018
Model
F31 Pro	-
Operating System
Android 15	Android v7.1.1 (Nougat)

Main Camera

Autofocus
-	Yes, Phase Detection autofocus
Camera Features
-	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Single
Flash
-	Yes, LED Flash
Image Resolution
-	4616 x 3464 Pixels
OIS
-	No
Resolution
-	16 MP f/1.7, Wide Angle, Primary Camera(26 mm focal length, 2.8" sensor size, 1.12µm pixel size)
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	1920x1080 @ 30 fps

Multimedia

Audio Jack
-	3.5 mm
FM Radio
-	Yes
Loudspeaker
-	Yes

Network & Connectivity

Bluetooth
5.3	Yes, v5.0
GPS
-	Yes with A-GPS, Glonass
NFC
-	Yes
Network Support
5G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
-	Head: 0.290 W/kg
SIM 1
-	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 850(band 26) 3G Bands: UMTS 1700 / 1900 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
-	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 850(band 26) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
-	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging
VoLTE
-	Yes
Wi-Fi
Wi-Fi 6E	Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
Wi-Fi Features
-	Wi-Fi Direct, Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core (2.2 GHz, Dual core + 1.6 GHz, Hexa Core)
Chipset
-	Samsung Exynos 7 Octa 7885
Fabrication
-	14 nm
Graphics
-	Mali-G71
Processor
MediaTek Dimensity 9300+ (4nm, octa-core)	-
Processor Fabrication
4 nm	-
RAM
8GB or 12GB	6 GB

Sensors

Fingerprint Sensor
Under-display	Yes
Fingerprint Sensor Position
-	Rear
Other Sensors
-	Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope

Storage

Expandable Memory
expandable via microSD	Yes, Up to 256 GB
Internal Memory
128GB or 256GB	64 GB
Storage Type
-	eMMC 5.1
USB OTG
-	Yes
User Available Storage
-	Up to 51.2 GB