Smartphones are no longer defined by specs alone. They shape how we connect, create, and navigate the unpredictability of everyday life. OPPO’s new F31 series takes that reality head-on, offering a package that feels built for India’s users. It brings smoother performance for multitasking, batteries designed to keep pace through long days, durability that withstands slips and splashes, and cameras that hold their own even when lighting conditions don’t.
At the heart of this series sits the OPPO F31 Pro+ and the OPPO F31 Pro. Both bring big upgrades over their predecessors, like a massive 7,000mAh battery, all-angle water resistance, and AI-powered camera tools. But that’s not all. The F31 Pro shapes up as the everyday companion, a reliable all-rounder that balances power and practicality. The F31 Pro+, on the other hand, pushes further, positioning itself as a complete package smartphone with premium touches like the Snapdragon 7 Gen 3 chip, advanced cooling, and a design that feels as good as it looks.
If you’re eyeing the new OPPO lineup, both the F31 Pro+ and F31 Pro are already up for grabs in India. You can find them on Amazon and Flipkart, with the Pro+ 5G coming in at Rs 32,999 and the F31 Pro starting at Rs 26,999.
Build and Design
Despite housing a massive 7,000mAh battery, both the OPPO F31 Pro+ and F31 Pro manage to stay slim and surprisingly light. The Pro+ measures just 7.7mm and 195g, while the Pro comes in at 8mm and 185g. These numbers reflect a comfortable fit for all-day use, whether you are juggling calls on the go or slipping the phone into a crowded jeans pocket.

I noticed this after carrying one around through a packed day, where the size and weight never got in the way. The finish also sets them apart: the Pro+ offers premium shades like Gemstone Blue and Himalayan White, while the Pro keeps things refined with Desert Gold and Space Grey. I found myself leaning towards the Gemstone Blue, which felt a bit more striking without being loud.

Looks, however, aren’t the whole story. Both phones use a 360° Armour Body with aerospace-grade aluminium and reinforced glass, backed by IP66, IP68, and IP69 protection. It is rated to withstand 18 different types of liquids, a level of protection you rarely see on consumer devices. This goes beyond the basics of rain or coffee, covering everything from carbonated drinks and energy boosters to sports hydration mixes and even the occasional accidental splash of beer.

The idea is simple: no matter what life throws at it, the F31 series is designed to keep going. So while using this phone, I did not think twice when it was exposed to sudden rain or when my daily dose of Diet Coke spilt too close for comfort. It is rare to find phones that look ready for the boardroom yet handle the clumsiness of everyday life so well.
Display
Both the OPPO F31 Pro+ and F31 Pro bring displays designed for India’s realities, not just showroom floors. The Pro+ gets you a 6.8-inch AMOLED with 1600 nits brightness, and the Pro has a 6.5-inch panel with 1400 nits. I did not have to shade the screen with my palm just to check a WhatsApp update at noon, and even in peak sunlight, the brightness held steady enough to stream the India–Pakistan clash on JioHotstar or catch up on the second season of Wednesday. That reliability makes the two feel like solid companions on commutes, road trips, or delivery runs.

But visibility is only half the story. OPPO adds thoughtful touches like Glove Mode and Splash Touch, letting you swipe through playlists with damp hands while cooking or answer calls on a rainy day without removing your gloves. Pair that with 120Hz smoothness with stereo speakers, the F31 Pro+ and the F31 Pro, can be used in kitchens, on bikes, in metros, and everywhere in between.

Performance
Under the hood, the F31 Pro+ packs Qualcomm’s Snapdragon 7 Gen 3, while the F31 Pro runs on MediaTek’s Dimensity 7300 Energy. On paper, that means flagship-level efficiency and power. In practice, it means your phone doesn’t flinch when you push it. We switched rapidly between WhatsApp calls, Maps, and UPI payments without a hiccup, and even tried a few rounds of BGMI and Call of Duty: Mobile where the phones held steady at up to 90fps.

Since our summers are known to be harsh, OPPO has equipped a SuperCool VC system. Even during long summer drives, the phones will keep their temps under control. It’s the kind of reliability that delivery riders, students, and professionals can actually feel every single day.
What makes it more impressive is how OPPO plans for the long term. Both models come with 72-month smoothness protection, certified to stay fast for six years. Add in OPPO’s Dual Engine Smoothness System, which makes apps launch quicker, and you get a device that feels new not just out of the box, but for years down the line. For anyone tired of replacing phones every 18–24 months because they “just got slow,” the F31 Pro and Pro+ promise a welcome change.
AI Features
Where OPPO really leans into the future with the F31 Pro+ and F31 Pro is AI. These aren’t gimmicky add-ons, they are real tools that actually save time in daily life. Take AI VoiceScribe and AI Call Summary: imagine sitting through a long client call or an online lecture, and instead of scrambling to jot down notes, the phone automatically generates a neat summary or even a transcript. I tried the AI Call Summary during a 20-minute work call, and it was surprisingly accurate, pulling out the key points without me needing to replay anything. Considering the diverse set of languages spoken in our country, the AI Call Translator offers real-time subtitles across regional languages, so coordinating with suppliers, customers, or even distant relatives becomes seamless.

The AI also extends to the camera and gallery. Features like AI Unblur bring clarity back to fast-moving candid shots, while AI Reflection Remover fixes the annoying glare when you shoot food photos through glass. And when someone photobombs a perfect vacation click, AI Eraser 2.0 cleans it up with a single tap.

What really ties it together, though, is OPPO’s partnership with Google Gemini. Integrated right into apps like Notes, Calendar, and Clock, Gemini lets you do things like ask for a long document to be summarized and saved into Notes, or set up reminders hands-free with natural voice commands. Instead of jumping between apps and typing things out, Gemini becomes a quiet assistant that makes the phone feel more conversational and convenient, a real step toward the future of everyday AI.
Cameras
Both the OPPO F31 Pro+ and F31 Pro pack a 50MP main camera with OIS and a 32MP front camera, giving you the confidence to click in almost any situation. Every day photos come out crisp, selfies look sharp, and even those tricky low-light or on-the-move shots feel steadier. OIS really comes into play here, cutting down the blur you usually see in night pictures or when you’re trying to snap something quickly. To put the cameras to the test, we took the OPPO F31 Pro 5G series to Jaisalmer in Rajasthan and managed to capture some truly beautiful moments. You can check them out below.
Whether it was under the harsh sun or while sitting indoors, both the OPPO F31 Pro+ 5G and F31 Pro 5G managed to pull off some really sharp and detailed shots. The green of the trees popped beautifully, and the sandy beige tones looked just as true as they did in front of our eyes. We tried a mix of selfies and portraits too, both of people and objects, and the results were surprisingly good. Tiny details, like individual strands of hair, were captured without getting lost in the background, something many phones usually mess up. Even flowers taken in portrait mode stood out nicely, with the petals, leaves and even the seeds in focus. Colours didn’t feel overly boosted either, with bright shades like red and pink appearing natural and lifelike.
Video is another area where the F31 Pro series sets itself apart. Both models support 4K recording on the front and rear cameras, making them versatile tools for video calls, vlogging, or simply capturing moments in high detail. This is a notable upgrade in the mid-range segment, where front-facing 4K recording is still rare. For users who rely on video as much as stills, from content creators to those who just like to document travel and family memories, this dual 4K capability adds welcome flexibility.
Perhaps the most unique addition is the Underwater Photography and Videography mode. Unlike most phones that are limited to splash resistance, the F31 Pro series lets you shoot directly in pools, rain, or other wet environments thanks to its IP69 durability. This makes the camera feel less like a fragile feature and more like a dependable companion in unpredictable conditions, whether it be a monsoon downpour or a casual weekend by the pool.
Battery and Charging
My usage tends to be on the heavier side, and I am always drawn to phones that pack bigger batteries. That is why the 7,000mAh cell on the OPPO F31 Pro+ and F31 Pro immediately stood out. It comfortably goes beyond a single day, and in my case, stretched to nearly two with regular use. For most users, this means fewer charging breaks and more peace of mind, whether you are a student on back-to-back online classes, a professional juggling long calls, or a rider relying on maps through an entire shift.

When it is time to top up, the phones support 80W SUPERVOOC fast charging, which can push the battery to nearly 60 percent in half an hour and to full in just over an hour. Features like Bypass Charging kept the phone noticeably cooler during my gaming sessions, and the reverse charging option came in handy to top up my earbuds on the go. In short, the F31 Pro and Pro+ make battery life not just about endurance but about the flexibility to adapt to how you use your phone every day.
The Bottom Line
With the F31 Pro+ and F31 Pro, OPPO has created a pair of devices that directly address the needs of users in India: long-lasting battery life, reliable performance, a durable design, and cameras that perform well even in challenging conditions. Both models share the same foundation, featuring a massive 7,000mAh battery with 80W fast charging, IP69-level protection, and a 50MP OIS camera system, making them dependable choices for everyday life.
The F31 Pro shapes up as the practical everyday companion, a phone that covers the essentials with confidence. The F31 Pro+, on the other hand, adds those extra touches with its Snapdragon 7 Gen 3 processor, advanced cooling system, and refined design, which make it feel like the “full package.” For anyone looking for a rugged phone under ₹30,000, or simply the best long-battery phone with fast charging in this range, the OPPO F31 series is positioned as one of the most compelling options right now.

Both the OPPO F31 Pro+ and F31 Pro have already been launched in India and are available on Amazon and Flipkart. The OPPO F31 Pro+ 5G is priced at Rs 32,999, while the F31 Pro starts at Rs 26,999.
Disclaimer: This is a Promotional post. The content and opinions expressed are those of the sponsor and do not necessarily reflect the views of our editorial team.
