The Oppo F31 Pro+ 5G provides up to 256GB of internal storage, with support for additional expansion.
2025, September 16
Android 15
colorOS 15
Snapdragon 7 Gen 3
50MP Back
32MP front
6.8 inches
7000mAh
256GB
8/12GB RAM
The Oppo F31 Pro+ 5G is a feature-rich smartphone combining modern design, performance, and durability. It sports a 6.8-inch AMOLED display with 120Hz refresh rate, powered by the Snapdragon 7 Gen 3 chipset. A massive 7,000mAh battery with 80W SUPERVOOC charging ensures lasting power. With IP66, IP68, and IP69 ratings, stereo speakers, and ColorOS 15 based on Android 15, the Oppo F31 Pro+ 5G promises a reliable everyday experience.
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The Oppo F31 Pro+ 5G features a large 6.8-inch AMOLED display with a 120Hz refresh rate, high touch sampling, and crisp resolution around 2800×1280 pixels. This ensures smooth visuals and responsive interactions. The screen is also protected by AGC DT-Star D+ glass for added durability.
Physically, the phone is fairly large, measuring about 163.1 × 77.6 mm. Thickness varies slightly depending on finish, ranging from 7.7 mm to 7.9 mm. The weight is between 195 and 204 grams, which makes it solid but not overly heavy for its size.
In terms of materials and durability, the Oppo F31 Pro+ 5G combines a glass front with a plastic back, supported by a sturdy frame. It carries IP66, IP68, and IP69K ratings, ensuring protection against water, dust, and high-pressure sprays, alongside a reinforced “360° Armor Body” design.
The phone is offered in several color options, including Gemstone Blue, Himalayan White, and Festival Pink. Despite its large battery and rugged build, the bezels remain slim, delivering an impressive screen-to-body ratio. The design blends durability with visual appeal, catering to both practicality and style.
The Oppo F31 Pro+ 5G features a 6.8-inch AMOLED display with a 120Hz refresh rate, delivering smooth scrolling and fluid animations. It supports over one billion colors, providing vibrant visuals and impressive depth for gaming, video streaming, and everyday use.
The display offers excellent outdoor visibility with peak brightness reaching up to around 1600 nits in High Brightness Mode. This ensures the screen remains clear and readable even under direct sunlight, while indoor brightness levels are comfortably balanced for daily tasks.
With Full HD+ resolution and a pixel density of about 453 PPI, the display produces sharp text, crisp images, and detailed graphics without compromising battery efficiency. It is protected by AGC DT-Star D+ glass, which enhances durability and scratch resistance.
Unlike some competitors, the Oppo F31 Pro+ 5G uses a flat display rather than a curved one, which improves grip and durability but may lack a premium feel for some. Bezels are moderately slim, and the panel overall balances visual quality with rugged practicality.
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The Oppo F31 Pro+ 5G is powered by the Snapdragon 7 Gen 3 chipset built on a 4nm process. Its octa-core setup includes a prime Cortex-A715 core, additional performance cores, and efficiency cores. Combined with the Adreno 720 GPU, it delivers solid efficiency and reliable performance for its class.
Thermal management is another strong point of the device. It features a large 5,219 mm² vapor chamber and expanded graphite layers to keep heat under control. This ensures that the phone maintains consistent performance, even during extended sessions of heavy use or under hot outdoor conditions.
For everyday tasks such as browsing, social media, video streaming, and multitasking, the Oppo F31 Pro+ 5G runs smoothly without noticeable lag. Its ColorOS 15 interface feels responsive, transitions are fluid, and app switching is efficient, making it a dependable companion for daily use.
When it comes to gaming and demanding workloads, the phone performs well but isn’t flawless. Graphically intensive titles can cause frame rate drops during long sessions, and heat becomes noticeable over time. Still, considering its price and massive battery, the Oppo F31 Pro+ 5G delivers competitive performance overall.
The back camera system of the Oppo F31 Pro+ 5G includes a 50MP main sensor (OV50D40) with a f/1.8 aperture and two-axis OIS, which helps in producing sharp photos and reducing blur in low light. It’s complemented by a 2MP monochrome lens to add depth and artistic flair to black-and-white shots.
Rear camera features are strong: the 50MP main sensor delivers vibrant daylight shots, good dynamic range, and reliable detail retention up to around 2× digital zoom. Portrait mode is notable for accurate edge detection and natural background blur. Video from the rear can be captured in 4K at 30fps and 1080p at multiple frame rates.
On the front, the Oppo F31 Pro+ 5G has a 32MP selfie camera with f/2.4 aperture. It handles portraits well, capturing plenty of detail and offering consistent skin tones in both indoor and outdoor lighting. The front camera also supports features like portrait mode, night mode, and dual-view video.
For front-video recording, the camera supports 1080p at 30fps (and lower for some modes) with decent stabilization and clarity, though it doesn’t reach the 4K-30fps level in all sources. Low-light selfies hold up reasonably well but show some noise and less sharpness compared to bright light conditions. Overall, the selfie camera adds value for video calls, social sharing, and casual vlogging.
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The Oppo F31 Pro+ 5G packs a large 7,000 mAh non-removable battery, providing excellent endurance for daily tasks like streaming, social media, navigation, and moderate gaming without frequent charging. Users can expect more than a full day of use under mixed usage.
Charging is fast thanks to 80W SUPERVOOC wired fast charging, which allows the battery to go from 0 up to about 50-60% in roughly 25-30 minutes. A full charge takes just over an hour under ideal conditions.
The F31 Pro+ 5G also includes reverse wired charging, meaning it can charge other compatible devices using a cable. There’s also bypass charging, which ensures that during intensive tasks like gaming the phone draws power directly from the charger rather than the battery, helping reduce heat and preserve battery life.
Despite its huge battery, there’s no wireless charging support in the Oppo F31 Pro+ 5G. This is one compromise considering other strengths. Also, while the fast charging is very good, heat management during charging and heavy use remains important to maintain battery health in the long run.
The Oppo F31 Pro+ 5G comes with stereo speakers placed on both the top and bottom edges. This setup creates balanced sound output, making movies, music, and games more immersive. Loudness levels are strong enough to be clearly heard even in crowded or noisy environments, enhancing the overall multimedia experience.
Audio clarity is impressive, with crisp mids and clear vocals that stand out in most tracks. High tones are sharp, though treble may sound slightly harsh at maximum volume. Bass response is present but not very deep, making it sufficient for casual listening but not for heavy bass lovers.
The phone does not feature a 3.5mm headphone jack, instead relying on the USB-C port or adapters for wired audio. For wireless sound, it supports high-quality Bluetooth codecs, ensuring smooth playback on modern earbuds and headphones. This balance favors portability but sacrifices traditional wired convenience.
Call quality on the Oppo F31 Pro+ 5G is reliable thanks to noise-canceling microphones. Background noise is reduced effectively, making conversations clearer for both parties. Voice notes also capture good detail, suitable for everyday use. Overall, audio performance is versatile, covering entertainment, communication, and wireless listening efficiently.
The Oppo F31 Pro+ 5G runs ColorOS 15 based on Android 15, offering a modern interface with smooth animations and a clean layout. The system integrates Oppo’s Dual-Engine Smoothness System, which uses the Trinity Engine and Luminous Rendering Engine to reduce lag, latency, and glitches during multitasking.
To support long-term use, Oppo provides 2 years of OS updates and 3 years of security patches for the F31 Pro+ 5G. It also features “72-Month Fluency Protection,” which includes intelligent pre-loading, storage defragmentation, and adaptive heat strategies to keep the device performing smoothly over time.
AI integration is central to the software experience. Features like AI Perfect Shot, AI Editor 2.0, AI Reflection Remover, AI Clarity Enhancer, AI Call Assist, and Live Gemini improve photography, call clarity, and media editing, making everyday tasks more efficient and enjoyable.
A drawback is the presence of bloatware, with several preinstalled apps that users may find unnecessary. While the UI is fluid and generally intuitive, cleaning out extra apps can be bothersome. Additionally, though Oppo’s update policy is decent, some competitors offer longer support in terms of software longevity.
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The Oppo F31 Pro+ 5G includes full 5G support with both standalone and non-standalone modes, along with 4G, 3G, and 2G networks. This ensures reliable high-speed data where 5G is available and broad compatibility in other regions. Dual nano-SIM slots allow two active networks simultaneously.
Wi-Fi connectivity is advanced, with Wi-Fi 6 support across 2.4GHz and 5GHz bands, plus Wi-Fi Direct and screen-casting features. Bluetooth 5.2 ensures stable wireless connections, supporting high-quality audio codecs like LDAC, aptX, and aptX HD for a smoother experience when using wireless earphones or speakers.
Navigation is precise thanks to multiple GNSS systems, including GPS (L1 + L5), GLONASS, Galileo, BeiDou, QZSS, and NavIC. Multi-band support enhances accuracy and speed in positioning, making it reliable for maps, travel, and outdoor navigation. The phone also supports OTG for connecting external accessories.
In terms of ports and extras, the Oppo F31 Pro+ 5G comes with a USB Type-C port that supports OTG but lacks a 3.5mm headphone jack. While this may disappoint some users, alternatives like Bluetooth audio and Type-C wired earphones are well-optimized for consistent audio performance.
Everyday Life with the Oppo F31 Pro+ 5G
Using the Oppo F31 Pro+ 5G in daily routines feels dependable thanks to its 7,000 mAh battery, which easily lasts through a full day of mixed activities like messaging, photography, streaming, and navigation. Even with moderate gaming or high brightness outdoors, the phone reduces the worry of frequent recharging.
Durability plays a big role in everyday use. With IP66, IP68, and IP69 ratings, along with the 360° Armor Body and aerospace-grade frame, the device is well-protected against dust, water, and accidental drops. This makes it a reliable companion for users who face unpredictable conditions in their day-to-day life.
Performance feels consistently smooth. Powered by the Snapdragon 7 Gen 3 chipset, supported by vapor-chamber cooling and optimized by Oppo’s Dual-Engine Smoothness technology, the phone handles multitasking, navigation, and app switching with minimal lag. Even under pressure, it manages to keep performance stable without noticeable throttling.
There are some trade-offs to consider. The large size and weight can make it slightly uncomfortable to hold for long sessions or carry in tight pockets. Additionally, the presence of pre-installed apps may feel unnecessary to some users. Despite this, the Oppo F31 Pro+ 5G delivers a strong balance of power, durability, and practicality for everyday life.
Future-Proofing & Longevity
The Oppo F31 Pro+ 5G launches with ColorOS 15 based on Android 15, ensuring it starts with the most up-to-date software. With current UI optimizations and system enhancements, it remains relevant for modern use, making it less likely to feel outdated in the near future.
Oppo provides 2 years of OS updates and 3 years of security patches for the F31 Pro+ 5G. While not the longest in the industry, this commitment gives users a solid window of support with important improvements, bug fixes, and security protections for smooth and safe performance.
The hardware design further enhances longevity. A 7,000 mAh battery with electrolyte repair technology helps retain around 80% of capacity even after five years. Combined with IP66, IP68, and IP69K certifications, the device resists dust, water, and harsh conditions, ensuring durability and reliability over long-term use.
Oppo’s “72-Month Fluency Protection” system is another key to future-proofing. With features like intelligent pre-loading, adaptive heat strategies, and storage defragmentation, the phone maintains stability and reduces performance slowdowns. Together with advanced cooling systems, these ensure the device runs smoothly and efficiently for years.
Who Should Buy the Oppo F31 Pro+ 5G?
The Oppo F31 Pro+ 5G is ideal for people needing durability. With IP66, IP68, and IP69K ratings plus a rugged 360° Armor Body, it suits outdoor workers, travelers, or anyone exposed to tough environments like dust, rain, or heat.
For power users, its 7,000 mAh battery and 80W fast charging make it perfect. It also supports reverse and bypass charging, ensuring long usage with minimal downtime. Heavy streamers, gamers, and commuters will benefit from its reliable endurance and charging flexibility.
Those who enjoy media will appreciate its 6.8-inch AMOLED display with 120Hz refresh rate and 1600-nit brightness. Whether watching videos, scrolling social media, or reading outdoors, the vibrant and smooth screen delivers an enjoyable daily viewing experience.
Final Verdict — Honest Take
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The Oppo F31 Pro+ 5G features a 6.7-inch AMOLED display with FHD+ resolution and smooth refresh rate support.
The Oppo F31 Pro+ 5G is powered by the MediaTek Dimensity 7050 processor for smooth performance and efficiency.
The Oppo F31 Pro+ 5G comes with up to 12GB RAM, ensuring lag-free multitasking and gaming.
The Oppo F31 Pro+ 5G provides up to 256GB of internal storage, with support for additional expansion.
The Oppo F31 Pro+ 5G features a versatile rear camera system, including a 108MP primary lens for detailed shots.
Yes, the Oppo F31 Pro+ 5G sports a 32MP front camera for sharp selfies and video calls.
The Oppo F31 Pro+ 5G houses a huge 7,000mAh battery designed for extended all-day use.
Yes, the Oppo F31 Pro+ 5G supports 80W SuperVOOC fast charging, ensuring rapid power top-ups.
The Oppo F31 Pro+ 5G runs on Android 14 with ColorOS 14 for a smooth and customizable experience.
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