Oppo is gearing up to launch its latest mid-range smartphone lineup — the Oppo F31 Series 5G — on September 15, 2025. This launch event promises to bring a new “Durable Champion” series that combines rugged durability with sleek design and solid performance. The lineup will include three variants: Oppo F31 5G, Oppo F31 Pro 5G, and Oppo F31 Pro+ 5G.
Whether you are a tech enthusiast or looking for a reliable mid-range phone, this detailed article covers everything about the Oppo F31 Series: launch details, expected pricing in India, specifications, unique durability features, design, and software experience.
Oppo F31 Series Launch Date & Event Details
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Launch Date: September 15, 2025
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Time: 12:00 PM IST
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Live Streaming: Official Oppo India website and YouTube channel
The launch event will officially unveil the full F31 Series, followed by pre-orders soon after and availability expected by the end of September.
Expected Price in India
Though Oppo hasn’t revealed official prices yet, industry leaks and analysts suggest the following approximate price range:
| Model | Expected Price (India) |
|---|---|
| Oppo F31 5G | Under ₹20,000 |
| Oppo F31 Pro 5G | Under ₹30,000 |
| Oppo F31 Pro+ 5G | Under ₹35,000 |
This pricing positions the F31 Series as a highly competitive option in the mid-tier smartphone market.
Oppo F31 Series – Key Specifications and Features
Display & Design
All three models will sport AMOLED displays with a smooth 120Hz refresh rate, promising vibrant colors and fluid animations. The F31 and F31 Pro feature a 6.57-inch screen, while the Pro+ boasts a larger 6.79-inch panel.
The series introduces a unique 360° Armour Body design with multi-layer internal “Airbag” shock absorbers, making it highly resistant to drops and impacts — a standout feature in this price segment. The devices come with IP66, IP68, and IP69 ratings, ensuring dust and water resistance.
Color options include Gold and Deep Blue, with a textured back panel design radiating from the camera module, adding a premium touch.
Processor and Performance
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Oppo F31 5G: Powered by MediaTek Dimensity 6300 processor, paired with 8GB RAM and 128GB storage.
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Oppo F31 Pro 5G: Upgraded with the MediaTek Dimensity 7300 chipset, 8GB RAM, and 128GB storage.
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Oppo F31 Pro+ 5G: Features the more powerful Qualcomm Snapdragon 7 Gen 3, 8GB RAM, and 256GB storage.
This hardware combination ensures smooth multitasking, efficient performance for everyday apps, and decent gaming capabilities.
Camera Setup
The Oppo F31 Series boasts a dual rear camera setup, featuring:
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Primary Sensor: 50MP with improved night mode and image stabilization
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Secondary Sensor: 2MP depth sensor
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Front Camera: 16MP on F31, upgraded to 32MP on Pro models
These cameras are optimized for crisp photos and enhanced video recording, catering well to selfie lovers and casual photographers alike.
Battery and Charging
A standout feature is the 7000mAh battery across all models, providing impressive endurance for heavy users. Coupled with 80W SuperVOOC fast charging, the phones can rapidly recharge to 42% in just 20 minutes. They also support 10W reverse charging to power other devices.
Software
The phones ship with ColorOS 15, Oppo’s latest Android skin based on Android 13. This includes a redesigned UI with improved animations, better multitasking, and new features like Dynamic Island-style notifications and a revamped control center for seamless user experience.
Durability & Military-Grade Protection
Oppo emphasizes durability in the F31 Series through its innovative 360° Armour Body and multi-layer Airbag shock absorption system that protects internal components during accidental drops. This is complemented by military-grade MIL-STD-810H-2022 certification, ensuring the phones can withstand extreme environmental conditions — a rare offering in this price bracket.
Oppo F31 Series – Model Comparison
| Feature | Oppo F31 5G | Oppo F31 Pro 5G | Oppo F31 Pro+ 5G |
|---|---|---|---|
| Display | 6.57″ AMOLED, 120Hz | 6.57″ AMOLED, 120Hz | 6.79″ AMOLED, 120Hz |
| Processor | MediaTek Dimensity 6300 | MediaTek Dimensity 7300 | Snapdragon 7 Gen 3 |
| RAM | 8GB | 8GB | 8GB |
| Storage | 128GB | 128GB | 256GB |
| Rear Cameras | 50MP + 2MP | 50MP + 2MP | 50MP + 2MP |
| Front Camera | 16MP | 32MP | 32MP |
| Battery | 7000mAh | 7000mAh | 7000mAh |
| Charging | 80W SuperVOOC | 80W SuperVOOC | 80W SuperVOOC |
| Durability | IP66, IP68, IP69 + MIL-STD-810H-2022 | Same | Same |
Final Verdict: Should You Buy the Oppo F31 Series?
If you want a mid-range smartphone with excellent durability, long battery life, smooth AMOLED display, and decent camera performance, the Oppo F31 Series offers compelling value. The military-grade protection and massive battery are standout features rarely seen in this segment.
However, if you are a heavy gamer or power user, the Pro+ model with Snapdragon 7 Gen 3 would be the best fit. Casual users and those prioritizing price can consider the base F31 model.
Where to Watch the Launch?
Date: September 15, 2025
Time: 12:00 PM IST
Where to Buy?
Post-launch, the Oppo F31 Series will be available through:
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Authorized offline retailers across India
Look out for launch week offers and exchange deals to maximize savings.
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