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Oppo F31 Pro 5G (8GB + 256GB) Review | 197 Data compared

Avg. price: ~£230
RAM capacity: 8 GB
Internal storage: 256 GB
Screen size: 6.57 inches
Main camera megapixels: 50 MP & 2 MP

Oppo F31 Pro 5G (8GB + 256GB) review. Compare 197 technical specifications and user reviews to see how it ranks among smartphones and if it's worth buying.

8.0

Excellent

8.0

Excellent

8.3

Excellent

Best prices

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Best rankings

Available versions:

8GB + 256GB12GB + 256GB £?8GB + 128GB £?

Verdict

The Oppo F31 Pro 5G (8GB + 256GB variant) is a durable, mid-range smartphone featuring a 6.57-inch 120Hz AMOLED display, a MediaTek Dimensity 7300 Energy processor, and a massive 7,000mAh battery with 80W SuperVOOC fast charging support. Its main pros are the exceptional battery life that can last up to two days, rapid charging capabilities, excellent IP66, IP68, and IP69 water and dust resistance ratings, and a bright 50MP main camera that shoots 4K video. Potential cons include the lack of an ultrawide camera lens, which limits photo versatility, a plastic build that doesn't feel premium, and some users report the phone can heat up during prolonged gaming sessions.

Technical Specifications of smartphone Oppo F31 Pro 5G (8GB + 256GB)

Overall score

8.0

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Popularity

What it is: An indicator based on the number of reviews received by the smartphone.

When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.

Performance & Hardware

7.9

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Brand name

What it is: The manufacturer or brand under which the smartphone is marketed and sold.

When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Oppo

Processor model

What it is: The central System-on-Chip (SoC) that houses the CPU, GPU, modem, and other core processing components.

When it matters: When you want to know the specific engine powering your device's speed and features.

Importance: HIGH

RAM capacity

What it is: The amount of volatile memory available for running apps and multitasking.

When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

Importance: HIGH

Good value: >12 GB

Internal storage

What it is: The total built-in space available for apps, media, and files.

When it matters: When you keep large libraries of photos, videos, and apps directly on your device.

Importance: HIGH

Good value: >256 GB

CPU boost clock speed

What it is: The maximum speed the processor can achieve temporarily under heavy load.

When it matters: When you run demanding apps or games that require short bursts of peak performance.

Importance: MEDIUM

Good value: >3.2 GHz

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Software

9.4

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Operating system

What it is: The primary system software that manages the smartphone's hardware and software resources.

When it matters: When you have a preference for the user interface and app ecosystem.

Importance: HIGH

Android version

What it is: The specific generation number of the Android operating system installed on the device.

When it matters: When you want to ensure app compatibility and access to the latest software features.

Importance: LOW

Direct OS updates

What it is: Indicates whether the device receives operating system updates directly from the manufacturer or Google, ensuring timely security and feature updates.

When it matters: When you want the fastest access to new features and security patches.

Importance: HIGH

Open-source OS

What it is: Shows whether the device’s operating system is based on open-source code, allowing community contributions and greater transparency.

When it matters: When you value transparency and potential community-driven modifications.

Importance: LOW

Dark mode

What it is: A display option that uses dark backgrounds to reduce eye strain and save battery on OLED screens.

When it matters: When you want to reduce eye strain at night or save battery on OLED screens.

Importance: LOW

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Camera

6.9

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Multi-lens main camera

What it is: Indicates that the rear camera system includes multiple lenses (e.g., wide, ultra-wide, telephoto) for versatile shooting options.

When it matters: When you want versatility to shoot wide landscapes, standard shots, and zoomed details.

Importance: MEDIUM

Main camera megapixels

What it is: The resolution of the primary rear camera sensor, measured in millions of pixels (MP). Higher megapixels can capture more detail.

When it matters: When you want to capture high-resolution images that can be cropped or printed large.

Importance: HIGH

Good value: >50 MP

Main camera aperture

What it is: The size of the lens opening (f-stop) that controls light entry. A lower f-number indicates a wider aperture, allowing better low-light shots.

When it matters: When you want better low-light performance or a natural background blur effect.

Importance: HIGH

Main camera sensor area

What it is: The total physical surface area of the camera sensor (calculated by multiplying the number of megapixels by the square of the individual pixel size). A larger area captures more light, resulting in better night photos and less digital noise.

When it matters: When you want to capture clear, detailed photos in low-light conditions with minimal grain and achieve a natural, professional-looking background blur for portraits.

Importance: HIGH

Good value: >60

Main camera pixel size

What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.

When it matters: When you shoot in low light and want reduced noise in your photos.

Importance: MEDIUM

Good value: ≥1.2 µm

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Connectivity

8.4

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Number of SIM slots

What it is: The number of physical SIM cards or eSIM profiles the device can support simultaneously.

When it matters: When you need to manage two different phone numbers or travel internationally with a local SIM.

Importance: MEDIUM

Good value: ≥2

Cellular module

What it is: The hardware component capable of connecting to mobile cellular networks for voice and data.

When it matters: When you need to stay connected to calls and internet away from Wi-Fi.

Importance: LOW

5G connectivity

What it is: Support for the fifth generation of mobile network technology, offering significantly faster data speeds and lower latency.

When it matters: When you need the fastest possible mobile data speeds for streaming and downloading on the go.

Importance: MEDIUM

LTE support

What it is: Support for Long-Term Evolution (4G) networks, providing high-speed mobile data.

When it matters: When you need reliable mobile internet coverage in areas where 5G isn't available.

Importance: HIGH

Wi-Fi connectivity

What it is: The ability to connect to wireless local area networks for internet access and local networking.

When it matters: When you want to save mobile data and connect to home or public networks.

Importance: HIGH

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Display

7.8

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Screen size

What it is: The physical diagonal measurement of the display area, usually expressed in inches.

When it matters: When you choose between a compact phone for one-handed use or a large screen for media.

Importance: MEDIUM

Good value: ≥6.6 inches

Screen resolution

What it is: The total number of pixels displayed on the screen, expressed as width x height, determining sharpness.

When it matters: When you want crisp text and sharp details in photos and videos.

Importance: HIGH

Pixel density

What it is: The concentration of pixels on the display, measured in pixels per inch (PPI), affecting image clarity.

When it matters: When you want the image to look perfectly smooth with no visible pixels.

Importance: HIGH

Good value: >400 ppi

Display type

What it is: The specific technology used for the screen panel (e.g., OLED, IPS LCD), influencing contrast, color, and efficiency.

When it matters: When you care about vibrant colors, deep blacks, and battery efficiency.

Importance: HIGH

Refresh rate

What it is: The number of times per second the display updates the image, measured in Hertz (Hz); higher rates offer smoother motion.

When it matters: When you want scrolling to feel fluid and games to look smoother.

Importance: HIGH

Good value: ≥120 Hz

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Battery

8.7

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Battery capacity

What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).

When it matters: When you want a general idea of how large the battery is physically.

Importance: HIGH

Good value: >5000 mAh

Charging speed

What it is: The maximum power input supported for wired charging, measured in Watts (W).

When it matters: When you are in a rush and need to top up your battery quickly.

Importance: HIGH

Good value: >60 W

Fast charging

What it is: In the context of modern electronics, "Fast Charging" refers to any technology that delivers power significantly higher than the traditional USB baseline. While the industry standard for a basic charger is 5W (5V at 1A), a charger is generally classified as a fast charger if it provides at least 18W of power.

When it matters: When you want to minimize the time your phone spends tethered to a wall outlet.

Importance: MEDIUM

GSMArena full wired charge time

What it is: The time taken to charge the battery from 0% to 100% using the bundled or recommended charger, as measured by GSMArena.

When it matters: When you want to know exactly how long it takes to charge from 0 to 100% in real-world tests.

Importance: MEDIUM

Good value: <45 min

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Wireless charging

What it is: The ability to charge the battery without cables by placing the device on a compatible charging pad.

When it matters: When you prefer the convenience of dropping your phone on a pad without fumbling with cables.

Importance: MEDIUM

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Audio

6.5

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Stereo speakers

What it is: A setup involving two or more speakers to create a left-right audio separation for immersive sound.

When it matters: When you watch videos or play games without headphones and want immersive sound.

Importance: MEDIUM

3.5 mm headphone jack

What it is: A standard analog audio port for connecting wired headphones or auxiliary cables.

When it matters: When you prefer using traditional wired headphones without dongles or adapters.

Importance: LOW

Number of microphones

What it is: The total count of microphones on the device, used for audio recording, noise cancellation, and voice isolation.

When it matters: When you want clear audio recording and better noise cancellation during calls.

Importance: MEDIUM

Good value: ≥3

FM radio

What it is: A built-in receiver allowing users to listen to local FM radio stations using wired headphones as an antenna.

When it matters: When you want to listen to local radio stations without using mobile data.

Importance: LOW

aptX Lossless

What it is: A Bluetooth technology designed to deliver CD-quality audio without data loss during transmission.

When it matters: When you demand CD-quality audio over Bluetooth with no loss of detail.

Importance: LOW

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Design

8.2

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Height

What it is: The vertical dimension of the device.

When it matters: When you are concerned about whether the phone will fit in your pocket or purse.

Importance: LOW

Good value: <162 mm

Width

What it is: The horizontal dimension of the device when held in portrait orientation.

When it matters: When you care about how easy the phone is to grip and use with one hand.

Importance: LOW

Good value: <75 mm

Thickness

What it is: The depth of the device profile, excluding the camera bump unless specified.

When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

Importance: LOW

Good value: <8 mm

Weight

What it is: The total mass of the smartphone, affecting how heavy it feels in the hand.

When it matters: When you want a phone that feels light in your pocket or substantial in your hand.

Importance: MEDIUM

Good value: <190 g

Device volume

What it is: The calculated total volume of the device's physical body.

When it matters: When you want to understand the overall physical bulk of the device.

Importance: LOW

Good value: <98cm³

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Oppo F31 Pro 5G (8GB + 256GB) vs the average smartphone

Why is Oppo F31 Pro 5G (8GB + 256GB) better than the average smartphone?

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Has optical image stabilization
Oppo F31 Pro 5G (8GB + 256GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
What it is: A hardware mechanism that physically moves the camera lens or sensor to counteract hand shakiness and reduce blur in photos and videos.
When it matters: When you want to reduce blur in photos and shake in videos, especially in low light.
Importance: HIGH
Oppo F31 Pro 5G (8GB + 256GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
40% larger battery capacity
Oppo F31 Pro 5G (8GB + 256GB) has a larger battery capacity than the average smartphone (7,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
When it matters: When you want a general idea of how large the battery is physically.
Importance: HIGH
Good value: >5000 mAh
Oppo F31 Pro 5G (8GB + 256GB) has a larger battery capacity than the average smartphone (7,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.7,000 mAh vs 5,000 mAh
2.42x faster charging speed
Oppo F31 Pro 5G (8GB + 256GB) supports a faster charging speed than the average smartphone (80 W vs 33 W). The average charging speed is 33 W.
What it is: The maximum power input supported for wired charging, measured in Watts (W).
When it matters: When you are in a rush and need to top up your battery quickly.
Importance: HIGH
Good value: >60 W
Oppo F31 Pro 5G (8GB + 256GB) supports a faster charging speed than the average smartphone (80 W vs 33 W). The average charging speed is 33 W.80 W vs 33 W
2.41x higher Geekbench 6 multi-core benchmark score
Oppo F31 Pro 5G (8GB + 256GB) scores better in Geekbench 6 multi-core than the average smartphone (6,095 vs 2,533). The average smartphone scores 2,533 in multi-core.
What it is: A cross-platform benchmark by Primate Labs that evaluates multi-core CPU performance. It simulates real-world workloads to measure how efficiently a device handles multitasking and parallel processing.
When it matters: When you perform heavy multitasking or run pro-level apps like video editors.
Importance: MEDIUM
Good value: >4000
Oppo F31 Pro 5G (8GB + 256GB) scores better in Geekbench 6 multi-core than the average smartphone (6,095 vs 2,533). The average smartphone scores 2,533 in multi-core.6,095 vs 2,533
Supports reverse wireless charging
Oppo F31 Pro 5G (8GB + 256GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
What it is: A feature that allows the smartphone to act as a wireless charging pad for other devices like earbuds.
When it matters: When your earbuds or smartwatch die and you need to charge them using your phone.
Importance: LOW
Oppo F31 Pro 5G (8GB + 256GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
Higher contrast ratio
Oppo F31 Pro 5G (8GB + 256GB) has a higher contrast ratio than the average smartphone (5,000,000:1 vs 1,000,000:1). The average smartphone contrast ratio is 1,000,000:1.
What it is: The ratio between the luminance of the brightest white and the darkest black the display can produce.
When it matters: When you want punchy colors and true blacks for an immersive viewing experience.
Importance: MEDIUM
Oppo F31 Pro 5G (8GB + 256GB) has a higher contrast ratio than the average smartphone (5,000,000:1 vs 1,000,000:1). The average smartphone contrast ratio is 1,000,000:1.5,000,000:1 vs 1,000,000:1
Better IP rating
Oppo F31 Pro 5G (8GB + 256GB) has a better IP rating than the average smartphone (IP68/IP69K vs IP67). The average IP rating is IP67.
What it is: A standardized code (Ingress Protection) indicating the device's resistance to dust and water intrusion.
When it matters: When you want to know if your phone can survive a splash, a dunk, or a dusty environment.
Importance: MEDIUM
Oppo F31 Pro 5G (8GB + 256GB) has a better IP rating than the average smartphone (IP68/IP69K vs IP67). The average IP rating is IP67.IP68/IP69K vs IP67
Supports HDR10 support
Oppo F31 Pro 5G (8GB + 256GB) supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
What it is: Compatibility with the HDR10 format for displaying high dynamic range video content.
When it matters: When you stream compatible movies and want to see richer colors and dynamic contrast.
Importance: MEDIUM
Oppo F31 Pro 5G (8GB + 256GB) supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
2.41x higher Geekbench 6 multi-core benchmark score
Oppo F31 Pro 5G (8GB + 256GB) scores better in Geekbench 6 multi-core than the average smartphone (6,095 vs 2,533). The average smartphone scores 2,533 in multi-core.
33.3% smaller process node
Oppo F31 Pro 5G (8GB + 256GB) uses a smaller process node than the average smartphone (4 nm vs 6 nm). The average process node size is 6 nm.
3.15x higher 3DMark Wild Life Extreme benchmark
Oppo F31 Pro 5G (8GB + 256GB) performs better in 3DMark Wild Life Extreme than the average smartphone (3,868 vs 1,226). The average smartphone scores 1,226.
25.6% higher PCMark Work 3.0 Performance benchmark
Oppo F31 Pro 5G (8GB + 256GB) has a higher PCMark Work 3.0 performance score than the average smartphone (13,542 vs 10,783). The average score is 10,783.
Higher CPU base clock speed
Oppo F31 Pro 5G (8GB + 256GB) has a higher CPU base clock speed than the average smartphone (4x2.5 GHz & 4x2.0 GHz vs 2x2.2 GHz & 6x2 GHz). The average smartphone has a base clock speed of 2x2.2 GHz & 6x2 GHz.
10.2% faster GPU clock
Oppo F31 Pro 5G (8GB + 256GB) has a higher GPU frequency than the average smartphone (1,047 MHz vs 950 MHz). The average smartphone GPU frequency is 950 MHz.
4.2% higher CPU boost clock speed
Oppo F31 Pro 5G (8GB + 256GB) has a higher CPU boost clock speed than the average smartphone (2.5 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
8.9% higher Geekbench 6 single-core benchmark score
Oppo F31 Pro 5G (8GB + 256GB) scores better in Geekbench 6 single-core than the average smartphone (1,026 vs 942). The average smartphone scores 942 in single-core.
Receives direct OS updates
Oppo F31 Pro 5G (8GB + 256GB) supports direct OS updates, the average smartphone does not. 20.5% of smartphones support this feature.
Higher on-device AI tier
Oppo F31 Pro 5G (8GB + 256GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.
Supports fast boot
Oppo F31 Pro 5G (8GB + 256GB) supports fast boot, the average smartphone does not. 22.4% of smartphones include fast boot capabilities.
Includes cross-site tracking protection
Oppo F31 Pro 5G (8GB + 256GB) supports cross-site tracking prevention, the average smartphone does not. 32.2% of smartphones include this feature.
Newer Android version
Oppo F31 Pro 5G (8GB + 256GB) features a newer Android version than the average smartphone (Android 15 vs Android 14). The average version is Android 14.
Has optical image stabilization
Oppo F31 Pro 5G (8GB + 256GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
Supports RAW photo capture
Oppo F31 Pro 5G (8GB + 256GB) supports RAW photo capture, the average smartphone does not. 37.1% of smartphones allow RAW files.
Higher front camera megapixels
Oppo F31 Pro 5G (8GB + 256GB) has more front camera megapixels than the average smartphone (32 MP vs 16 MP). The average front camera has 16 MP megapixels.
Supports 360° panorama
Oppo F31 Pro 5G (8GB + 256GB) can capture 360° panoramas, the average smartphone cannot. 25.1% of smartphones support 360° panoramas.
Allows manual shutter speed
Oppo F31 Pro 5G (8GB + 256GB) allows manual shutter speed control, the average smartphone does not. 29.7% of smartphones include this.
Supports optical tracking
Oppo F31 Pro 5G (8GB + 256GB) supports optical tracking, the average smartphone does not. 12.2% of smartphones include optical tracking.
Supports motion tracking
Oppo F31 Pro 5G (8GB + 256GB) supports motion tracking, the average smartphone does not. 21.9% of smartphones offer motion tracking capabilities.
Newer Bluetooth version
Oppo F31 Pro 5G (8GB + 256GB) supports a newer Bluetooth version than the average smartphone (5.4 vs 5.2). The average version is Bluetooth 5.2.
Has an infrared sensor
Oppo F31 Pro 5G (8GB + 256GB) includes an infrared sensor, the average smartphone does not. 33.3% of smartphones feature an IR blaster.
Higher contrast ratio
Oppo F31 Pro 5G (8GB + 256GB) has a higher contrast ratio than the average smartphone (5,000,000:1 vs 1,000,000:1). The average smartphone contrast ratio is 1,000,000:1.
Supports HDR10 support
Oppo F31 Pro 5G (8GB + 256GB) supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
Supports HDR10+ support
Oppo F31 Pro 5G (8GB + 256GB) supports HDR10+, the average smartphone does not. 21.9% of smartphones include HDR10+ support.
506.5 nits higher GSMArena max display brightness
Oppo F31 Pro 5G (8GB + 256GB) has a higher GSMArena max display brightness than the average smartphone (1,400 nits vs 893.5 nits). The average max brightness is 893.5 nits.
400 nits higher peak brightness
Oppo F31 Pro 5G (8GB + 256GB) has a higher peak brightness than the average smartphone (1,400 nits vs 1,000 nits). The average peak brightness is 1,000 nits.
Better display glass type
Oppo F31 Pro 5G (8GB + 256GB) features a better display glass type than the average smartphone (AGC Dragontrail Star 2 vs Corning Gorilla Glass 5). The average smartphone uses Corning Gorilla Glass 5 protection.
Has a curved display
Oppo F31 Pro 5G (8GB + 256GB) features a curved display, the average smartphone does not. 24.4% of smartphones have curved screens.
0.5% higher pixel density
Oppo F31 Pro 5G (8GB + 256GB) has a higher pixel density than the average smartphone (397 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
40% larger battery capacity
Oppo F31 Pro 5G (8GB + 256GB) has a larger battery capacity than the average smartphone (7,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
2.42x faster charging speed
Oppo F31 Pro 5G (8GB + 256GB) supports a faster charging speed than the average smartphone (80 W vs 33 W). The average charging speed is 33 W.
Supports reverse wireless charging
Oppo F31 Pro 5G (8GB + 256GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
Better IP rating
Oppo F31 Pro 5G (8GB + 256GB) has a better IP rating than the average smartphone (IP68/IP69K vs IP67). The average IP rating is IP67.
5.4 mm shorter
Oppo F31 Pro 5G (8GB + 256GB) is shorter than the average smartphone (158.2 mm vs 163.6 mm). The average smartphone height is 163.6 mm.
1 mm narrower
Oppo F31 Pro 5G (8GB + 256GB) is narrower than the average smartphone (75 mm vs 76 mm). The average smartphone width is 76 mm.
0.3 mm thinner
Oppo F31 Pro 5G (8GB + 256GB) is thinner than the average smartphone (8 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.
3.2% lighter
Oppo F31 Pro 5G (8GB + 256GB) is lighter than the average smartphone (190 g vs 196.2 g). The average smartphone weighs 196.2 g.

Performance & Hardware

Why is Oppo F31 Pro 5G (8GB + 256GB) worse than the average smartphone?

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22.4% slower memory speed
Oppo F31 Pro 5G (8GB + 256GB) has a lower memory speed than the average smartphone (2,133 MHz vs 2,750 MHz). The average smartphone has a memory speed of 2,750 MHz.
14.3% lower maximum RAM capacity
Oppo F31 Pro 5G (8GB + 256GB) supports less maximum RAM than the average smartphone (12 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
Narrower main camera aperture
Oppo F31 Pro 5G (8GB + 256GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
41.6% smaller main camera sensor area
Oppo F31 Pro 5G (8GB + 256GB) has a smaller main camera sensor area than the average smartphone (18.7 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
0.19 µm smaller main camera pixel size
Oppo F31 Pro 5G (8GB + 256GB) has a smaller main camera pixel size than the average smartphone (0.6 µm vs 0.8 µm). The average smartphone has a pixel size of 0.8 µm.
Lower-resolution main camera
Oppo F31 Pro 5G (8GB + 256GB) has a lower-resolution main camera than the average smartphone (50 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
Narrower front camera aperture
Oppo F31 Pro 5G (8GB + 256GB) has a narrower front camera aperture than the average smartphone (f/2.4 vs f/2.2). The average smartphone front aperture is f/2.2.
2.4
0.1 inches smaller screen size
Oppo F31 Pro 5G (8GB + 256GB) has a smaller screen size than the average smartphone (6.6 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.
Lower screen resolution
Oppo F31 Pro 5G (8GB + 256GB) has a lower screen resolution than the average smartphone (1080x2372 px vs 1080x2400 px). The average smartphone has a resolution of 1080x2400 px.
Narrower main camera aperture
Oppo F31 Pro 5G (8GB + 256GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
What it is: The size of the lens opening (f-stop) that controls light entry. A lower f-number indicates a wider aperture, allowing better low-light shots.
When it matters: When you want better low-light performance or a natural background blur effect.
Importance: HIGH
Oppo F31 Pro 5G (8GB + 256GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
41.6% smaller main camera sensor area
Oppo F31 Pro 5G (8GB + 256GB) has a smaller main camera sensor area than the average smartphone (18.7 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
What it is: The total physical surface area of the camera sensor (calculated by multiplying the number of megapixels by the square of the individual pixel size). A larger area captures more light, resulting in better night photos and less digital noise.
When it matters: When you want to capture clear, detailed photos in low-light conditions with minimal grain and achieve a natural, professional-looking background blur for portraits.
Importance: HIGH
Good value: >60
Oppo F31 Pro 5G (8GB + 256GB) has a smaller main camera sensor area than the average smartphone (18.7 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².18.7 mm² vs 32 mm²
22.4% slower memory speed
Oppo F31 Pro 5G (8GB + 256GB) has a lower memory speed than the average smartphone (2,133 MHz vs 2,750 MHz). The average smartphone has a memory speed of 2,750 MHz.
What it is: The rate at which the device’s RAM can transfer data, measured in MHz or GB/s.
When it matters: When you need faster app loading times and snappier overall system responsiveness.
Importance: MEDIUM
Good value: >3200 MHz
Oppo F31 Pro 5G (8GB + 256GB) has a lower memory speed than the average smartphone (2,133 MHz vs 2,750 MHz). The average smartphone has a memory speed of 2,750 MHz.2,133 MHz vs 2,750 MHz
0.19 µm smaller main camera pixel size
Oppo F31 Pro 5G (8GB + 256GB) has a smaller main camera pixel size than the average smartphone (0.6 µm vs 0.8 µm). The average smartphone has a pixel size of 0.8 µm.
What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
When it matters: When you shoot in low light and want reduced noise in your photos.
Importance: MEDIUM
Good value: ≥1.2 µm
Oppo F31 Pro 5G (8GB + 256GB) has a smaller main camera pixel size than the average smartphone (0.6 µm vs 0.8 µm). The average smartphone has a pixel size of 0.8 µm.0.612 µm vs 0.8 µm
14.3% lower maximum RAM capacity
Oppo F31 Pro 5G (8GB + 256GB) supports less maximum RAM than the average smartphone (12 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
What it is: The highest amount of RAM that the device’s chipset or architecture can support, regardless of how much is actually installed.
When it matters: When you are considering the long-term potential of the hardware platform.
Importance: MEDIUM
Good value: >16 GB
Oppo F31 Pro 5G (8GB + 256GB) supports less maximum RAM than the average smartphone (12 GB vs 14 GB). The average smartphone supports 14 GB of RAM.12 GB vs 14 GB
0.1 inches smaller screen size
Oppo F31 Pro 5G (8GB + 256GB) has a smaller screen size than the average smartphone (6.6 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.
What it is: The physical diagonal measurement of the display area, usually expressed in inches.
When it matters: When you choose between a compact phone for one-handed use or a large screen for media.
Importance: MEDIUM
Good value: ≥6.6 inches
Oppo F31 Pro 5G (8GB + 256GB) has a smaller screen size than the average smartphone (6.6 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.6.57 inches vs 6.67 inches
Lower-resolution main camera
Oppo F31 Pro 5G (8GB + 256GB) has a lower-resolution main camera than the average smartphone (50 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
What it is: The resolution of the primary rear camera sensor, measured in millions of pixels (MP). Higher megapixels can capture more detail.
When it matters: When you want to capture high-resolution images that can be cropped or printed large.
Importance: HIGH
Good value: >50 MP
Oppo F31 Pro 5G (8GB + 256GB) has a lower-resolution main camera than the average smartphone (50 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.50 MP & 2 MP vs 50 MP & 8 MP
Narrower front camera aperture
Oppo F31 Pro 5G (8GB + 256GB) has a narrower front camera aperture than the average smartphone (f/2.4 vs f/2.2). The average smartphone front aperture is f/2.2.
2.4
What it is: The f-stop value of the front camera lens, affecting light intake and background blur in selfies.
When it matters: When you take selfies in low light and want them to appear brighter.
Importance: MEDIUM
Oppo F31 Pro 5G (8GB + 256GB) has a narrower front camera aperture than the average smartphone (f/2.4 vs f/2.2). The average smartphone front aperture is f/2.2.f/2.4 vs f/2.2

Performance & Hardware

Graphic comparison of Oppo F31 Pro 5G (8GB + 256GB) and other smartphones

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Third-party reviews

United Kingdom

(Reviews last updated: Mar 2026)

United Kingdom

(Reviews last updated: Mar 2026)

United Kingdom

(Reviews last updated: Mar 2026)

What customers like about Oppo F31 Pro 5G (8GB + 256GB)?

Exceptional durability with MIL-STD-810H and IP66/IP68/IP69 ratings, making it resistant to drops, dust, and water.
Massive 7,000mAh battery capacity that offers excellent endurance, often lasting 1.5 to 2 days with moderate usage.
Very fast 80W SuperVOOC charging that can charge the phone to full in about an hour.
Vibrant, smooth 6.7-inch or 6.8-inch AMOLED display with a 120Hz refresh rate, great for media consumption.
Stylish design with a slim profile and quality build materials that resist fingerprints (on the back panel).
Reliable performance for daily tasks and most popular games, with an efficient thermal system that keeps the phone cool.
Decent main 50MP camera (with OIS) that captures sharp images in good light, and a good 32MP front camera.
Good quality stereo speakers, offering clear audio without distortion even at maximum volume.

What customers dislike about Oppo F31 Pro 5G (8GB + 256GB)?

The software (ColorOS 15) comes with a significant amount of pre-installed apps and bloatware, which can be intrusive with notifications.
Performance can feel underwhelming for its price point, especially during graphics-intensive gaming sessions where it may lag or heat up.
The camera system lacks versatility, with no ultra-wide or telephoto lens, and average performance in low light conditions.
The phone is slightly heavier and larger compared to some competitors due to its massive battery.
The processor, such as the Snapdragon 7 Gen 3, is considered aging by some reviewers compared to newer chipsets in rival phones.
The polished frame of the phone can be a fingerprint magnet.

Expert reviews

timesofindia.indiatimes.com

12/11/2025

Oppo F31 Pro review: Durability meets efficiency Would you like a breakdown of the specific testing results for its 7,000mAh battery or camera perform...

The Times of India review identifies the OPPO F31 Pro+ as a durable mid-range device featuring a massive 7,000mAh battery and 80W fast charging. It highlights the device's superior IP66/IP68/IP69 water and dust resistance, along with MIL-STD-810H military-grade certification, which provides exceptional structural resilience. While the device offers a bright 120Hz AMOLED display and...Read more

oppo.com

15/09/2025

OPPO F31 Pro 5G - Smooth and Powerful, Durable Champion Important Note: The vast majority of comprehensive testing and "Pro" reviews currently availab...

The OPPO F31 Pro 5G is a mid-range smartphone highlighted by its durable IP66, IP68, and IP69 water and dust resistance, a vibrant 6.57-inch 120Hz AMOLED display, and a large 7,000mAh battery with 80W fast charging. While its MediaTek Dimensity 7300-Energy chipset handles daily tasks efficiently and the 50MP main camera captures decent photos, cons include a chipset considered...Read more

croma.com

15/09/2025

Oppo F31 Pro 5G first impressions | Croma Unboxed

Croma's first impressions of the Oppo F31 Pro 5G note its strong build quality with IP66, IP68, and IP69 ratings, a large 7000 mAh battery with 80W fast charging, and a 6.57-inch 120Hz AMOLED display as key advantages. Potential drawbacks include the MediaTek Dimensity 7300-Energy processor potentially lagging behind some competitors in raw benchmarks and cameras that may struggle...Read more

oppo.com.en2de.search.translate.goog

01/09/2025

OPPO F31 Series – Official German Translation Details Page

The OPPO F21 Pro (4G) is a mid-range, design-focused smartphone featuring a unique, slim fiberglass-leather finish in Sunset Orange that is both lightweight and smudge-resistant. Its 6.43-inch AMOLED 90Hz display offers vibrant, high-quality visuals, although the lack of a 120Hz refresh rate separates it from more performance-oriented rivals. Camera capabilities define this device,...Read more

oppo.com.en2es.search.translate.goog

01/09/2025

OPPO F31 Series - Charging and Durability Details

The OPPO F31 series positions itself as a durable, mid-range option, boasting a "360° Armour Body" with IP66, IP68, and IP69 ratings. It features a large 7,000mAh battery with 80W SUPERVOOC charging, a 6.57-inch 120Hz AMOLED display with 1,400 nits peak brightness, and runs on the MediaTek Dimensity 6300 chipset for daily efficiency. The camera system, featuring a 50MP main sensor...Read more

croma.com

16/09/2025

Oppo F31 Pro 5G first impressions | Croma Unboxed

The Oppo F31 Pro 5G is characterized by Croma Unboxed as a mid-range, durable device focusing on longevity, featuring a massive 7,000mAh battery housed in a relatively slim 8mm, 190g frame. Key specs include a 6.57-inch 120Hz AMOLED display and the MediaTek Dimensity 7300-Energy chipset, highlighted by exceptional IP66/IP68/IP69 water and dust resistance ratings. Pros include...Read more

oppo.com

15/09/2025

OPPO F31 Pro 5G - Smooth and Powerful, Durable Champion

The OPPO F31 Pro 5G is a mid-range smartphone prioritizing extreme durability and battery life, highlighted by a 7,000mAh battery and 80W charging, alongside a "360° Armour Body" featuring IP66, IP68, and IP69 ratings. It features a 6.57-inch 120Hz AMOLED display and is powered by the MediaTek Dimensity 7300-Energy chipset, delivering reliable, albeit not top-tier, performance. Key...Read more

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