OPPO F31 Pro Plus 12GB

OPPO F31 Pro+ 5G Review — Premium Features at a Mid-Range Price

If you’ve been scouting for a smartphone that blends performance, durability and useful everyday features — without demanding ultra-flagship money — the OPPO F31 Pro+ 5G stands out. With its emphasis on a large battery, rugged build, high refresh display, and 12 GB RAM + 256 GB storage model, it ticks many boxes. Let’s dig into how well it delivers — and where compromises lie.


Design & Build: Rugged Meets Refined

Right off the bat, the F31 Pro+ presents itself with a strong physical profile. According to OPPO’s specifications, it has a thickness of ~0.77 cm (in the Gemstone Blue variant) and weighs ~195g. OPPO+2OPPO+2 Those are very respectable numbers for a large-battery phone, meaning it won’t feel too heavy in your hand.

The build is also rugged: OPPO highlights a “360-degree Armour Body”, an AM04-grade aluminium alloy structural frame, and AGC DT-Star D+ strengthened glass. India Today+1 Further — in India specifically — the F31 series carries triple certifications of IP66, IP68, IP69 meaning dust resistance, water immersion and high-pressure hot water resistance. The Economic Times So if you’re someone who uses a phone outdoors, or in tougher conditions, this is a genuinely solid design choice.

The device offers a flat 6.8″ AMOLED display (more on that later) with minimal bezels (“ultra-narrow, evenly-bezelled” in OPPO’s words). OPPO+1 Colour-variants include Gemstone Blue, Festival Pink and Himalayan White. Build wise — it feels like a phone designed to last, not just to look good.


Display & Multimedia: Smooth, Bright and Big

One of the stronger pillars for this phone is its display. The F31 Pro+ features a 120Hz refresh rate AMOLED panel. OPPO+2Gadgets 360+2 The resolution is 2800×1280 pixels (FHD+), with a pixel density ~453 ppi. OPPO Colour gamut covers 100% sRGB in Natural mode, and 100% DCI-P3 in Vivid mode. And it supports up to 1.07 billion colours (10-bit) which is excellent for visual fidelity. OPPO

Brightness wise, normal brightness is rated ~600 nits typical, and high brightness mode (HBM) up to ~1600 nits, which is decent for outdoor viewing. OPPO The flat design means the phone is less likely to produce weird reflections or accidental touches, and the slim bezel helps immerse you in content.

For film-watching, scrolling or gaming, the combination of 120Hz plus a sharp panel is a big plus. If your aim is a device that feels “premium” for media and daily use, this screen handles it well.


Performance & Software: Strong Mid-Premium Hardware

Under the hood, OPPO has equipped the F31 Pro+ with the Qualcomm Snapdragon 7 Gen 3 chipset (built on 4nm process). OPPO+2The Economic Times+2 According to OPPO, it achieves an AnTuTu benchmark score of ~890,000+. OPPO The variant we’re focusing on offers 12 GB RAM (and can expand virtually) and 256 GB UFS 3.1 storage. OPPO+1

What does this mean in everyday use? For multitasking across apps, switching between tabs, social media, streaming, productivity — you’ll find the performance snappy. The chipset is proven, and with 12 GB RAM you have plenty of head-room for most users. OPPO also mentions a “six zeros” promise with their Dual-Engine Smoothness System: no lag, no latency, no flicker, no crash, no mislaunch, no freeze. India Today+1

Software wise, it ships with ColorOS 15.0 (based on Android 15) in India, with the typical OPPO UI twists. OPPO The advantage: you get a recent OS, potentially longer support period than many ultra-budget phones, and a hardware platform that is up to the task.

Caveat: While this hardware is strong, it is still a “mid-premium” rather than ultra-flagship device. Certain ultra-heavy games at highest settings may show some thermal throttling or reduced frame rates (as some user-reports suggest). For example:

“The camera looked fancy on paper … low light shots are dull … heating during games is real.” Reddit
That means if you are a hardcore mobile gamer chasing 120fps on ultra-settings, you may find better dedicated gaming phones — but for most use-cases this is more than fine.


Camera & Imaging: Balanced, but Not Ultra-Elite

On paper, the camera setup is modest but capable. The rear camera is a 50 MP main sensor (f/1.8 aperture, 2-axis OIS). OPPO+1 It is paired with a 2 MP mono lens (f/2.4) — which is a lightweight support lens rather than a serious ultra-wide or telephoto. Gadgets 360+1 The front camera is 32 MP (f/2.4). Gadgets 360+1

In daylight, users can expect sharp, well-exposed photos with good colours thanks to the OIS and quality sensor. But the lack of a high-quality ultra-wide, no telephoto zoom and the “support lens” nature of the 2 MP module means this camera setup isn’t aiming to out-shoot premium flagships. The 4K video (at 30fps) is supported. OPPO

User feedback notes the following:

“Camera looks fancy on paper but low-light pics come out super blackish … the lack of ultra wide hurts …” Reddit
So yes — this is a capable camera system for day-to-day shooting and social media, but if you’re very passionate about photography you may feel a few constraints.


Battery & Charging: One of the Strongest Features

If there’s a standout highlight, it’s the battery. The F31 Pro+ houses a 7,000 mAh battery — unusually large in this segment. OPPO+1 Paired with the efficient chipset and display optimisations, you can expect very solid “all-day plus” battery life — even heavy users may stretch into a second day with lighter use.

Charging is handled via 80W SUPERVOOC fast charging (wired). OPPO claims very good thermal management during charging — works even in high ambient temps (43°C) or cold (-20°C) situations. OPPO+1 Reverse wired charging (10W) is also supported. Wireless charging is missing.

For many buyers, this is a key selling point: strong endurance + very fast recharge when needed.


Connectivity & Extras: Well-Rounded

Connectivity includes 5G support (with many Indian bands), Wi-Fi 6, Bluetooth 5.2, USB-C, in-display fingerprint sensor, stereo speakers, and other modern features. OPPO+1 The rugged build (IP66/68/69) gives it more resilience than many rivals.

One trade-off: while the build is strong, it doesn’t have some ultra-flagship features such as wireless charging or ultra-premium camera lenses. But given the price point, that’s understandable.


Price & Value Proposition

At launch in India the 12 GB + 256 GB variant of the F31 Pro+ was priced around ₹34,999 (approx). The Economic Times+1 When you factor in the strong battery, robust build, high refresh display, and good performance, it becomes a very strong value proposition.

If you compare to rivals in the same mid-to-upper mid-range segment, the OPPO F31 Pro+ offers some standout advantages (especially battery + ruggedness). If you don’t need ultra-flagship cameras or extras like wireless charging, this is a smart buy.


Pros & Cons — Quick Summary

✅ Pros:

  • Massive 7,000 mAh battery + 80 W fast charging
  • Slim build for that big battery (~0.77 cm thickness, ~195-204g weight)
  • Rugged certifications (IP66/68/69) and aluminium frame
  • Smooth 120Hz AMOLED display with high resolution + good colour gamut
  • Strong performance with Snapdragon 7 Gen 3 + 12 GB RAM + UFS 3.1 storage
  • Modern connectivity & good overall feature-set

⚠️ Cons:

  • Rear camera setup lacks ultra-wide/telephoto depth compared to flagships
  • No wireless charging
  • While capable, the camera in low light may not match premium competitors
  • Some user-reports of heating or slower performance under very heavy gaming load. Reddit

Who Should Buy It?

If you fall into one of these categories, the F31 Pro+ is an excellent pick:

  • You prioritise battery life and fast charging over photography perfection.
  • You want a durable phone that can handle tougher conditions (outdoors, field work, all-day use).
  • You want a phone that “feels premium” without paying ultra-premium price.
  • You want a smooth, high refresh display and good day-to-day performance for multitasking, streaming, social media.

If you are a heavy photographer or videographer, or you need ultra-zoom/telephoto capabilities or wireless charging, you might want to consider stepping up to a higher tier.

Display

Screen Size Unit of Measure6.8 Inches
Refresh Rate120 Hz
Display TypeAMOLED

Camera

Front Photo Sensor Resolution32 MP
Rear Facing Camera Photo Sensor Resolution50 MP
Camera Flash TypeLED
Number of Rear Facing Cameras2
Number of Front Cameras1

Connectivity

Wireless ProviderUnlocked for All Carriers
Cellular Technology5G
Network Connectivity TechnologyBluetooth, Wi-Fi

Measurements

Item Weight Unit of Measure204 Grams
Item Dimensions16.3 x 7.8 x 0.8 Centimeters

Battery

Battery Capacity7000 Milliamp Hours
Battery Power7000

Product Details

Brand NameOPPO
Model Year2025
Country of OriginIndia
Box ContentsPhone Case, Power Adapter, SIM Tray Ejector, Screen Protector
ManufacturerOPPO, OPPO Mobiles India Pvt Ltd, 5th FLOOR, Tower B, BUILDING, N-8, DLF Cyber City, DLF Phase 2,Gurugram, Haryana 122002 Tel – 18001032777
Specific Uses For ProductOutdoor Adventures, Sports, Professional Photography
Customer Reviews3.9 3.9 out of 5 stars   (39)
3.9 out of 5 stars
Best Sellers Rank#5,609 in Electronics (See Top 100 in Electronics)#233 in Smartphones
ASINB0FP7X6ZNW
Importer Contact InformationOPPO Mobiles India Pvt Ltd, 5th FLOOR, Tower B, BUILDING, N-8, DLF Cyber City, DLF Phase 2,Gurugram, Haryana 122002 Tel – 18001032777
Item Type NameSmartphone
Item Height8 Millimeters
Manufacturer Contact InformationOPPO Mobiles India Pvt Ltd, 5th FLOOR, Tower B, BUILDING, N-8, DLF Cyber City, DLF Phase 2,Gurugram, Haryana 122002 Tel – 18001032777
Packer Contact InformationOPPO Mobiles India Pvt Ltd, 5th FLOOR, Tower B, BUILDING, N-8, DLF Cyber City, DLF Phase 2,Gurugram, Haryana 122002 Tel – 18001032777
Unit Count1 Count
Warranty Description12 Months on Handset and 6 Months on Adapter & Cable.

Disclaimer : Specifications shown may be different from the actual product. We cannot guarantee that the information provided on this page is 100% correct. Please check with the retailer before purchasing.