Price and specifications of Oppo F31 advantages, disadvantages, and a comprehensive explanation

Oppo F31 Overview

The Oppo F31 is a mid-range smartphone launched by Oppo in September 2025. Designed to blend style, performance, and battery longevity, the device aims to offer solid value for users looking for a power-efficient phone with a robust camera setup and modern software experience. Featuring the MediaTek Dimensity 6300 processor alongside a large AMOLED display and a massive battery, the Oppo F31 is a notable competitor in the budget-to-mid-tier market segment.

Design and Build

The Oppo F31 sports a sleek and modern build with dimensions of 158.2 x 75 x 8 mm (6.23 x 2.95 x 0.31 inches), allowing for a comfortable one-hand usage while retaining a large viewing area. Weighing just 185 grams (6.53 oz), the device balances sturdiness with portability.

The phone features a dual Nano-SIM slot, which is common in many modern smartphones, and supports microSDXC cards for storage expansion—ideal for users who require additional storage for media and apps.

The build quality is enhanced by AGC DT-Star D+ glass, providing scratch resistance and durability to the screen. Oppo offers the F31 in three attractive colors: Midnight Blue, Bloom Red, and Cloud Green, catering to different style preferences.

Display

The Oppo F31 is equipped with a 6.57-inch AMOLED display delivering vibrant colors and deep blacks inherent to OLED technology. It supports 1 billion colors, which provides a rich and immersive viewing experience whether you are watching videos, gaming, or scrolling through photos.

The resolution stands at 1080 x 2372 pixels, yielding around 397 pixels per inch (ppi), resulting in sharp and detailed images. The screen supports a 120Hz refresh rate, offering smooth animations and scrolling with reduced blur and lag, a feature especially appreciated by gamers and users who value fluidity in user interface interactions.

Brightness levels peak at 600 nits typical brightness and 1400 nits in high brightness mode (HBM), making outdoor legibility effective even under direct sunlight. The display also adopts AGC DT-Star D+ protective glass, known for enhanced durability and resistance to everyday scratches.

Performance and Hardware

Under the hood, the Oppo F31 houses the MediaTek Dimensity 6300 chipset fabricated on a 6nm process. This octa-core processor consists of two Cortex-A76 cores clocked at 2.4 GHz for handling demanding tasks, complemented by six energy-efficient Cortex-A55 cores at 2.0 GHz for background activities and power saving.

For graphics processing, the Mali-G57 MC2 GPU is integrated, providing good performance for casual gaming and multimedia playback.

Memory configurations for the Oppo F31 include 8GB of RAM paired with either 128GB or 256GB of internal storage. Storage can be further expanded via microSDXC cards, catering to users with large libraries of photos, videos, and applications.

The smartphone runs the latest Android 15 operating system with Oppo’s proprietary ColorOS 15 skin on top. This latest version of ColorOS offers an improved and user-friendly interface, enhanced customization options, better privacy controls, and optimized system performance.

Camera System

Oppo places a strong emphasis on photography with the F31’s dual rear camera setup. The primary sensor is a 50-megapixel wide-angle camera with an aperture of f/1.8. It supports phase detection autofocus (PDAF) ensuring fast and accurate focusing, making it well suited for everyday photography including portraits, landscapes, and low-light shots.

Complementing the main camera is a 2-megapixel depth sensor, which enhances portrait mode photos by improving background blur (bokeh) effects.

Photography features include an LED flash, high dynamic range (HDR), and panorama mode. Video recording capabilities include Full HD (1080p) video at 30, 60, and even 120 frames per second for smooth slow-motion shots or fast action preservation.

On the front, the Oppo F31 includes a 16-megapixel selfie camera with an f/2.4 aperture, capable of wide-angle selfies and also supports panorama selfies. It can record 1080p videos at 30fps, which is sufficient for high-quality video calls and social media content creation.

Battery and Charging

One of the standout features of the Oppo F31 is its massive 7000 mAh lithium-ion battery. Such a large capacity promises excellent battery life, extending usage well beyond a single day even with heavy multitasking, gaming, and media consumption.

The smartphone supports fast wired charging at an 80W rate, which is very fast in the mid-range segment. The Oppo F31 can be charged from zero to a substantial percentage in a short amount of time, minimizing downtime.

Additionally, it supports reverse wired charging, enabling the device to function as a power bank and recharge other compatible gadgets, a handy feature for emergencies.

Connectivity

The Oppo F31 covers a wide array of network technologies, including GSM, HSPA, LTE, and 5G, ensuring support for fast data speeds and broad global compatibility.

It supports multiple 2G bands (850/900/1800/1900 MHz), 3G bands (900/2100 MHz), various 4G LTE bands (including Bands 1, 3, 5, 8, 19, 28 and more), and extensive 5G bands (1, 3, 5, 8, 28, 38, 40, 41, 77, 78 in SA/NSA modes).

For local connectivity, it comes with Wi-Fi 802.11 a/b/g/n/ac with dual-band support, Bluetooth 5.4 with aptX HD for high-quality wireless audio, and GPS satellite systems including GPS, GLONASS, GALILEO, BDS, and QZSS for precise location tracking.

The Oppo F31 also includes USB Type-C 2.0 with OTG support. Notably, however, it does not include a 3.5mm headphone jack or NFC functionality.

Audio and Sensors

The device is equipped with stereo loudspeakers delivering a rich and immersive sound experience for gaming, video playback, and calls on speakerphone. Despite the absence of a 3.5mm jack, users can rely on Bluetooth 5.4 and USB Type-C headphones for audio output.

For security and usability, the Oppo F31 features an optical in-display fingerprint scanner, which offers quick and secure biometric unlocking. Additional sensors include accelerometer, proximity sensor, and compass, supporting various smartphone functionalities like adaptive brightness, orientation detection, and navigation.

Software Experience

Running Android 15 with ColorOS 15, Oppo delivers a polished and modern user interface. ColorOS 15 brings numerous enhancements in efficiency, ease of use, and customization. Users benefit from improved privacy controls, smarter notifications, and a variety of customization options for themes, always-on display, and gestures.

Frequent updates and optimizations help ensure smooth performance and security, enhancing the overall user experience.

Pricing and Availability

Announced on September 17, 2025, and released shortly thereafter on September 27, 2025, the Oppo F31 targets value-conscious consumers seeking a blend of performance, battery endurance, and a premium display.

The pricing at launch stands at approximately ₹22,999 in the Indian market for the base configuration of 8GB RAM with 128GB storage, making it an appealing choice in its category.

The 256GB model is available for users requiring extra storage, and offers the same core specifications and features.

Pros and Cons

Pros:

• Large and vibrant 6.57-inch AMOLED 120Hz display
• Massive 7000mAh battery with 80W fast charging support
• Capable 50MP primary camera with PDAF and 1080p120fps video recording
• Balanced MediaTek Dimensity 6300 processor delivering good day-to-day performance
• Dual stereo speakers enhance multimedia experience
• Expandable storage via microSDXC support

Cons:

• No 3.5mm headphone jack, limiting wired audio options
• Absence of NFC for contactless payments and quick pairing
• Depth sensor’s 2MP camera has limited practical use compared to ultra-wide or telephoto lenses
• Plastic frame and back may not feel as premium as glass or metal variants

Conclusion

The Oppo F31 emerges as a strong contender in the mid-range smartphone space for late 2025, offering a large, high-quality AMOLED display, excellent battery capacity, and a competent camera setup at a competitive price point. It fits well for users looking for a reliable daily driver with solid media capabilities and long-lasting battery life.

Though it lacks some dedicated premium features such as NFC and a headphone jack, the Oppo F31 compensates with fast charging, an up-to-date software experience, and smooth performance courtesy of the MediaTek Dimensity 6300 chipset.

For consumers prioritizing display quality, battery endurance, and consistent camera results without breaking the bank, the Oppo F31 deserves strong consideration.