OPPO F31 Series Launches: 7000mAh Battery and 80W Charging Set New Standards
September 15, 2025 | New Delhi – The Indian smartphone market was set abuzz today as OPPO officially unveiled its highly anticipated F31 Series. Marking a significant leap forward in battery technology and charging speeds, the new lineup, which includes the OPPO F31 and the premium OPPO F31 Pro, promises to redefine user expectations for mid-range and upper-mid-range devices. The launch event, streamed live from New Delhi, showcased a clear focus on addressing one of the biggest consumer pain points: battery life and charging anxiety.
A New Era of Endurance: The 7000mAh Battery
The headline feature of the F31 Series is undoubtedly its massive 7000mAh battery. For years, smartphones have hovered around the 4500-5000mAh mark, but OPPO has pushed the boundaries to offer what they are calling a “two-day power promise.” The company’s engineers have leveraged new cell technology to pack a greater energy density into a compact form factor without increasing the device’s weight or thickness significantly.
OPPO’s presentation highlighted how this monumental battery capacity would translate into real-world usage. A typical user can now go through a full day of heavy gaming, social media browsing, and video streaming without needing to top up. For a moderate user, OPPO claims the phone could last for up to 48 hours on a single charge. This not only offers unparalleled freedom but also reduces the long-term stress on the battery, potentially extending its lifespan. The 7000mAh battery, a first for this segment, is a game-changer and immediately sets the F31 Series apart from its competitors.
The engineering behind this achievement is not just about size. The new battery incorporates advanced thermal management systems to ensure it remains cool even during intense usage or rapid charging. OPPO’s proprietary Battery Health Engine, a feature that has been praised in previous models, is also integrated, ensuring the battery retains a high percentage of its original capacity even after years of use.
The Need for Speed: 80W SuperVOOC Charging
A large battery is only as good as its charging speed, and OPPO has addressed this with its 80W SuperVOOC flash charging technology. This is a significant upgrade from the 67W charging found in many of its predecessors and competitors. The combination of a massive battery with lightning-fast charging is a powerful one. During the live demonstration, the OPPO F31 Pro was shown to charge from 0% to 50% in just under 15 minutes, a stunning feat. A full charge from empty to 100% took less than 40 minutes, which is incredibly impressive for a 7000mAh unit.
The 80W SuperVOOC charging technology uses a dual-cell battery architecture to manage the flow of current efficiently and safely. The charging process is intelligently monitored by a dedicated chip that adjusts the voltage and current to prevent overheating and protect the battery. The charger itself is a compact brick with a USB-C cable that is universally compatible, though the full 80W speed is only achieved with OPPO’s certified charger and cable. The company emphasized that safety is a top priority, with multiple layers of protection built into both the phone and the charger to prevent any mishaps.
This feature is a direct answer to the needs of modern users who are always on the go. The ability to get a day's worth of power in a matter of minutes transforms the way people think about and use their phones. No longer do they have to plan their day around a charging port; a quick 10-minute break is enough to get them through a busy afternoon.
Design and Display: Refined and Immersive
The F31 Series continues OPPO's tradition of sleek, stylish design. The phones feature a slim profile despite the large battery, with a smooth, matte finish that is resistant to fingerprints. The F31 comes in three stunning colors: Nebula Black, Cosmic Blue, and a new Aurora Green. The F31 Pro offers a more premium feel with a glass back and a polished aluminum frame, available in a striking Starry Silver and an elegant Midnight Black.
On the front, both devices sport a vibrant AMOLED display. The OPPO F31 features a 6.7-inch FHD+ panel with a 120Hz refresh rate, providing smooth scrolling and a great viewing experience. The OPPO F31 Pro takes it a step further with a 6.8-inch LTPO 2.0 display, offering an adaptive refresh rate from 1Hz to 144Hz. This technology not only ensures a buttery-smooth experience but also significantly reduces power consumption, as the refresh rate dynamically adjusts based on the content being displayed.
The display on both models is a treat for media consumption. It supports HDR10+ and has a peak brightness of 1,200 nits, making it perfect for watching movies and playing games even in bright sunlight. The bezels are minimal, and a small punch-hole cutout at the top houses the front camera. The in-display fingerprint sensor is fast and accurate, adding to the seamless user experience.
Camera System: More Than Just Megapixels
OPPO has consistently delivered strong camera performance in its F-series, and the F31 is no exception. The standard F31 features a triple-camera setup with a 64MP main sensor, an 8MP ultra-wide lens, and a 2MP macro sensor. The main camera, with its new sensor, promises improved low-light performance and better dynamic range.
The OPPO F31 Pro elevates the photography experience with a more advanced quad-camera setup. It features a new 50MP primary sensor with Optical Image Stabilization (OIS), a 12MP ultra-wide lens with a 120-degree field of view, an 8MP telephoto lens with 2x optical zoom, and a 2MP macro lens. The Pro model also boasts a new generation of OPPO’s computational photography engine, which uses AI to analyze scenes and optimize settings in real-time.
The front camera on both models is a 32MP sensor, perfect for high-resolution selfies and video calls. OPPO has also introduced a new Portrait Mode 2.0, which offers more realistic bokeh effects and better edge detection, a feature that will be a hit with social media enthusiasts.
Performance and Software: Power and Efficiency
Under the hood, the OPPO F31 Series is powered by the latest chipsets to deliver robust performance. The OPPO F31 is equipped with the new MediaTek Dimensity 9000-E, an octa-core processor built on a 4nm process. This chipset offers a perfect blend of power and efficiency, handling everyday tasks and demanding games with ease. The F31 comes with 8GB of RAM and storage options of 128GB and 256GB.
The premium OPPO F31 Pro is a performance beast, powered by the flagship Qualcomm Snapdragon 8 Gen 3 chipset. This top-of-the-line processor, paired with 12GB of LPDDR5X RAM, provides a lag-free experience, whether you are multitasking or playing graphics-intensive games. The Pro model offers storage options of 256GB and 512GB, catering to power users who need ample space for their photos, videos, and apps.
Both phones run on the latest ColorOS 16, based on Android 15. The new software is clean, intuitive, and highly customizable. It features new privacy controls, enhanced security features, and a redesigned user interface that is more fluid and responsive. OPPO has also promised two major Android updates and four years of security patches, a commitment that will be well-received by consumers.
Pricing and Availability
OPPO has priced the F31 Series aggressively to make a strong impact in the competitive Indian market. The OPPO F31 will start at ₹29,990 for the 8GB RAM + 128GB storage variant, with the 256GB model priced at ₹32,990. The OPPO F31 Pro starts at ₹39,990 for the 12GB RAM + 256GB storage variant, and the top-tier 512GB model is priced at ₹44,990.
The phones will be available for purchase starting September 22, 2025, on Flipkart, Amazon, and OPPO's official website, as well as at major retail stores across the country. OPPO has also announced a host of launch offers, including bank discounts, no-cost EMI options, and a special exchange bonus for old devices.
Conclusion: A Bold Step Forward
With the launch of the OPPO F31 Series, the company has not only introduced two highly capable smartphones but has also made a strong statement about its commitment to innovation. The combination of a record-breaking 7000mAh battery, lightning-fast 80W charging, and a refined user experience makes these devices a compelling option for anyone looking for a powerful and reliable smartphone. The F31 Series is poised to be a major success and a benchmark for other smartphone manufacturers to follow in the coming months. The era of charging anxiety might finally be coming to an end.
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