OPPO F31 Series 5G: India Launch, Key Features & What to Expect
OPPO is all set to launch its much-anticipated OPPO F31 Series 5G in India on 15 September 2025 at 12:00 PM IST, marking the next step after the F29 Series.The lineup is being marketed with the tagline “Durable Champion”, underlining its focus on durability, long battery life, and value for mid-range users.
Here’s everything we know so far — specs, pricing expectations, strengths, potential weaknesses, and who this phone is really for.
1. Models, Pricing & Availability
The F31 Series will comprise three models:
- OPPO F31 5G (standard)
- OPPO F31 Pro 5G
- OPPO F31 Pro+ 5G
Expected price ranges in India (leaked/rumoured so far):
- F31 Pro: ~ ₹26,999 for 8 GB + 128 GB. Higher storage variants (256 GB, etc.) somewhat more.
- F31 Pro+: ~ ₹32,999 for 8 GB + 256 GB; ~ ₹34,999 for 12 GB + 256 GB.
- The standard F31 is expected to fall somewhere between ₹20,000 to ₹25,000 depending on configuration.
Sales will begin through OPPO’s official site and select e-commerce platforms in India.
2. Design & Build / Durability Features
One of the biggest differentiators of the F31 Series is how robust it promises to be. Key elements:
- Water, dust resistance: IP69, IP68, and IP66 ratings. This combination means protection from dust, water immersion (under certain conditions), and even high-pressure water jets.
- “360-degree armour body”: Reinforced build, rugged aesthetics, likely reinforced corners.
- MIL-STD-810H certification (military standard) for durability.
- The display glass is expected to be tough — promotional materials and leaks mention AGC DT-Star D+ glass up front.
Colour options are also part of the design appeal:
- F31 standard: Midnight Blue, Cloud Green, Bloom Red.
- Pro / Pro+ may have different finishes (e.g. Gemstone Blue, Desert Gold, etc.) depending on variant.
3. Performance, Chipsets & Display
Chipset:
- The top version (Pro / Pro+) is confirmed to use Snapdragon 7 Gen 3 SoC.
- The Pro model is rumoured to use MediaTek Dimensity 7300 Energy from leaks.
- Standard model likely to have a somewhat lower but still capable chipset (rumours suggest maybe Dimensity series) to meet price point.
Display:
- All models are expected to feature AMOLED displays. The Pro / Pro+ may have larger, higher refresh-rate panels.
- Pro+ possibly has the largest screen in the series, with flatter or slightly curved edges depending on variant.
4. Battery & Charging
A standout spec of the F31 Series is the battery and charging:
- 7000 mAh battery across all models (typical value).
- 80W SuperVOOC™ Flash Charge support. This should allow fast charging, though actual speeds in real-world conditions may vary.
- For cooling and ensuring performance under load (especially while charging or in warm climates): a Vapour Chamber (VC) cooling system is confirmed, with a large area in Pro/Pro+ models (some reports of ~5,219 mm²).
These specs suggest OPPO aims for multi-day battery life plus rapid top-ups, which is appealing for people on the move.
5. Camera Setup
From leaks and OPPO’s microsite:
- Rear cameras: Triple camera setup. The primary sensor is reportedly 50 MP.
- Additional sensors: one depth / mono-lens (2 MP) etc.
- Front camera: Likely 32 MP for selfie / video calls.
Other camera features are less confirmed — rumours mention improved low-light performance, AI camera enhancements, and possibly OIS (optical image stabilization) on higher versions, though OIS has not been fully confirmed in reliable leaks.
6. Other Features of Note
- Connectivity: 5G support is a given for all models.
- Smoothness & benchmarking: OPPO has shared benchmark data. The Snapdragon 7 Gen 3 version scores over ~ 890,000 on AnTuTu.
- Temperature / thermal management: The phones are built to handle heat via the vapour chamber cooling and design. Leaks say performance remains smooth even at ~40 °C.
- IP Ratings & durability: Already covered above, but critical point: triple IP rating (IP69, IP68, IP66) plus military-grade standard. Useful for people needing rugged phones (outdoor work, unpredictable weather, etc.).
7. What Users Should Expect & Where It Might Compete
Given the specs, design, and pricing, the OPPO F31 Series is aiming at the upper mid-range market in India (roughly ₹20,000-₹35,000). Its competition will likely include:
- Other mid-range 5G phones with large batteries (e.g. from Xiaomi/Redmi, Samsung “A-series”, Vivo / iQOO).
- Rugged and durable phones (though few mainstream phones combine ruggedness + fast charging + large battery + good brand support as OPPO seems to be doing).
What will matter in real-life use:
- How heavy the phones are: 7000 mAh batteries plus rugged build tend to add weight. Comfort and handling will matter.
- Charging practical speeds: 80 W is fast, but charging speed drops under warm environment or partial charge states.
- Camera performance: leaks point to good specs, but actual image quality, video stabilization, night photography etc. will determine if the cameras live up to expectations.
- Software support: How many Android / ColorOS version updates, security patches. Leaks say things like 2 years OS updates, 3 years security updates (for some variants) are expected.
8. Launch Day & What To Watch For
On launch day (15 Sept, 12 PM IST), here’s what to keep an eye out for:
- Final confirmed pricing (especially for the standard F31).
- Shipping / availability details (which cities, offline outlets etc.).
- “Launch offers”: often brands pair up with exchange bonuses, bank discounts, etc.
- Hands-on impressions: how do the phones feel in hand; weight, build quality, whether the rugged claims hold up.
- Battery endurance in real usage; how well cooling works under load; and how UI / performance feels over extended use.
9. Pros & Potential Drawbacks
Pros:
- Extremely large battery (7000 mAh) with fast charging, so likely solid battery life.
- Strong durability credentials (IP ratings, rugged build). Good for tough environments.
- Competitive chipsets, especially in Pro / Pro+ versions.
- Likely good resale / brand support given OPPO’s presence in India.
Possible drawbacks / things to watch:
- Weight & thickness: rugged phones + big battery = likely heavier/wider than slim flagships. Might not appeal to users who prefer sleek phones.
- Price vs features trade-off: if the camera or display falls short vs similarly priced rivals, may lose out.
- Heat / charging throttling in warm climates — though cooling systems are claimed, real-world performance will tell.
- Software & long-term support: while leaks mention some numbers, OPPO will have to deliver timely updates to maintain user trust.
