Oppo F31 vs Samsung Galaxy A7 2018 128gb

Key Specs

Battery
-	3300 mAh
Display
-	6.0 inches (15.24 cm)
Front Camera
-	24 MP
Processor
-	Samsung Exynos 7 Octa 7885
RAM
-	6 GB
Rear Camera
-	24 MP + 5 MP + 8 MP

Audio

Audio Jack
3.5 mm	-

Battery

Capacity
7000 mAh	3300 mAh
Quick Charging
80W SUPERVOOC fast charging	-
Removable
-	No
TalkTime
-	Up to 19 Hours(3G)
Type
-	Li-ion
USB Type-C
Yes	No

Camera

Front Camera
16GB	-
Rear Camera
50M P+ 2GB + 2GB	-

Design

Build Material
Aerospace-grade aluminum alloy	Back: Mineral Glass
Colours
Midnight Blue, Cloud Green, Bloom Red	Black, Blue, Gold
Height
-	159.8 mm
Thickness
-	7.5 mm
Water Resistance
IP68/IP69 rating	-
Weight
-	169 grams
Width
-	76.8 mm

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Display

Aspect Ratio
-	18.5:9
Bezel-less display
-	Yes
Display Type
2D curved AMOLED	Super AMOLED
Pixel Density
-	411 ppi
Refresh Rate
120Hz	-
Resolution
1080 x 2412 pixels	1080x2220 px (FHD+)
Screen Protection
-	Corning Gorilla Glass v3
Screen Size
6.57-inch	6.0 inches (15.24 cm)
Screen to Body Ratio (calculated)
-	74.78 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Autofocus
-	No
Camera Setup
-	Single
Resolution
-	24 MP f/2.0, Wide Angle, Primary Camera(26 mm focal length)

General

Brand
OPPO	Samsung
Custom UI
ColorOS 15	-
Launch Date
September 15, 2025	October 18, 2018 (Official)
Model
F31	-
Operating System
Android 15	Android v8.0 (Oreo)

Main Camera

Autofocus
-	Yes, Phase Detection autofocus
Camera Features
-	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Triple
Flash
-	Yes, LED Flash
Image Resolution
-	5288 x 3968 Pixels
OIS
-	No
Resolution
-	24 MP f/1.7, Wide Angle (78° field-of-view), Primary Camera(27 mm focal length, 2.8" sensor size, 0.9µm pixel size)5 MP f/2.2, Depth Camera 8 MP f/2.4, Ultra-Wide Angle Camera(18 mm focal length)
Sensor
-	Exmor-RS CMOS Sensor
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	1920x1080 @ 30 fps

Multimedia

Audio Features
-	Dolby Atmos
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
-	No
Network Support
5G	5G Not Supported in India, 4G Supported in India, 3G, 2G
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) / 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
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) / 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
SIM Size
-	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging, microUSB 2.0
VoLTE
-	Yes
Wi-Fi
Wi-Fi 6	Yes, Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi Features
-	Wi-Fi Direct, Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core (2.2 GHz, Dual core, Cortex A73 + 1.6 GHz, Hexa Core, Cortex A53)
Chipset
-	Samsung Exynos 7 Octa 7885
Fabrication
-	14 nm
Graphics
-	Mali-G71 MP2
Processor
MediaTek Dimensity 7050 (6nm, octa-core)	-
Processor Fabrication
6 nm	-
RAM
6GB/8GB	6 GB
RAM Type
-	LPDDR4
RAM type
-	LPDDR4

Sensors

Fingerprint Sensor
Side-mounted fingerprint sensor	Yes
Fingerprint Sensor Position
-	Side
Other Sensors
-	Light sensor, Proximity sensor, Accelerometer, Gyroscope

Storage

Expandable Memory
expandable via microSD up to 1TB	Yes, Up to 512 GB
Internal Memory
128GB/256GB	128 GB
Storage Type
UFS 2.2	eMMC 5.1
USB OTG
-	Yes