Oppo F31 vs Samsung Galaxy M40

Key Specs

Battery
-	3500 mAh
Display
-	6.3 inches (16 cm)
Front Camera
-	16 MP
Processor
-	Qualcomm Snapdragon 675
RAM
-	6 GB
Rear Camera
-	32 MP + 8 MP + 5 MP

Audio

Audio Jack
3.5 mm	-

Battery

Capacity
7000 mAh	3500 mAh
Quick Charging
80W SUPERVOOC fast charging	Yes, Fast, 15W
Removable
-	No
TalkTime
-	Up to 29 Hours(4G)
Type
-	Li-ion
USB Type-C
Yes	Yes

Camera

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

Design

Build Material
Aerospace-grade aluminum alloy	Back: Plastic
Colours
Midnight Blue, Cloud Green, Bloom Red	Midnight Blue, Seawater Blue, Cocktail Orange
Height
-	155.3 mm
Thickness
-	7.9 mm
Water Resistance
IP68/IP69 rating	-
Weight
-	168 grams
Width
-	73.9 mm

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Display

Aspect Ratio
-	19.5:9
Bezel-less display
-	Yes with punch-hole display
Display Type
2D curved AMOLED	PLS TFT LCD
Pixel Density
-	409 ppi
Refresh Rate
120Hz	-
Resolution
1080 x 2412 pixels	1080x2340 px (FHD+)
Screen Protection
-	Corning Gorilla Glass v3
Screen Size
6.57-inch	6.3 inches (16 cm)
Screen to Body Ratio (calculated)
-	84.71 %
Screen to Body Ratio (claimed by the brand)
-	91.8 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Autofocus
-	No
Camera Setup
-	Single
Flash
-	No
Resolution
-	16 MP f/2.0, Primary Camera
Sensor
-	CMOS
Video Recording
-	1920x1080 @ 30 fps

General

Brand
OPPO	Samsung
Custom UI
ColorOS 15	Samsung One UI
Launch Date
September 15, 2025	June 18, 2019
Model
F31	-
Operating System
Android 15	Android v9.0 (Pie)

Main Camera

Autofocus
-	Yes
Camera Features
-	8 x Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Triple
Flash
-	Yes, LED Flash
Image Resolution
-	6500 x 4920 Pixels
OIS
-	No
Resolution
-	32 MP f/1.7, Primary Camera(2.8" sensor size, 0.8µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(12 mm focal length)5 MP f/2.2, Depth Camera
Sensor
-	CMOS image sensor
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	3840x2160 @ 30 fps

Multimedia

Audio Features
-	Dolby Atmos
Audio Jack
-	USB Type-C
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: 0.200 W/kg
SIM 1
-	4G Bands: TD-LTE 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
SIM 2
-	4G Bands: TD-LTE 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
SIM Size
-	SIM1: Nano, SIM2: Nano (Hybrid)
SIM Slot(s)
Dual SIM	Dual SIM, GSM+GSM, Dual VoLTE
USB Connectivity
-	Mass storage device, USB charging
VoLTE
-	Yes
Wi-Fi
Wi-Fi 6	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 GHz, Dual core, Kryo 460 + 1.7 GHz, Hexa Core, Kryo 460)
Chipset
-	Qualcomm Snapdragon 675
Fabrication
-	11 nm
Graphics
-	Adreno 612
Processor
MediaTek Dimensity 7050 (6nm, octa-core)	-
Processor Fabrication
6 nm	-
RAM
6GB/8GB	6 GB
RAM Type
-	LPDDR4X
RAM type
-	LPDDR4X

Sensors

Fingerprint Sensor
Side-mounted fingerprint sensor	Yes
Fingerprint Sensor Position
-	Rear
Other Sensors
-	Light sensor, Proximity sensor, Accelerometer, Compass, 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
User Available Storage
-	Up to 105 GB