OPPO India is preparing to unveil its latest F31 Series on September 15, introducing three new mid-range smartphones built to handle demanding conditions without sacrificing performance. The lineup consists of the F31 Pro+, F31 Pro, and the standard F31, and it is aimed at people who rely heavily on their phones in challenging environments. That includes traders working long hours outdoors, gig-economy workers constantly on the move, shopkeepers who cannot afford downtime, and young professionals who need dependable devices to keep up with busy schedules.
Key takeaways
- Launch date in India: September 15
- Three models: F31 Pro+, F31 Pro, F31
- Built to handle heat up to 43°C with SGS A+ certification
- 7,000 mAh battery with 80W SuperVOOC fast charging
- Strong durability with IP69, IP68, and IP66 ratings
- AI-powered tools for work and communication
- Outdoor Mode 2.0 designed for gig workers and delivery riders
- Runs on ColorOS 15 with long-term fluency protection
- 50MP cameras across all models with 4K video support
A survey by Counterpoint Research highlighted that overheating (41%), battery problems (32%), and accidental damage (32%) are the most common issues smartphone users face. OPPO has addressed these directly with larger vapour chambers for improved heat control, a 7,000 mAh battery with 80W SuperVOOC fast charging, and a 360° Armour Body for better durability through multi-layer shock absorption. The series has also received an A+ certification from SGS for High-Temperature Fluency, which means stable performance even in temperatures up to 43°C.
Key features of the OPPO F31 Series
Heat management
All three phones are designed with enlarged vapour chambers. The F31 Pro+ has the largest chamber at 5,219 mm², followed by 4,363 mm² in the F31 Pro and 4,300 mm² in the F31.
Processors
The F31 Pro+ is powered by the Qualcomm Snapdragon 7 Gen 3, while the F31 Pro uses the MediaTek Dimensity 7300-Energy. The standard F31 runs on the Dimensity 6300 SoC.
Durability
The devices carry IP69, IP68, and IP66 ratings for resistance against drops, dust, and water. The IP68 certification allows underwater photography in 4K for up to 30 minutes at a depth of 1.5 meters.
Battery and charging
All models are equipped with a 7,000 mAh battery that supports 80W SuperVOOC fast charging. OPPO says the phones can reach 58% charge in just 30 minutes. There is also a bypass charging mode that routes power directly to the phone during gaming to reduce heat.
AI tools
The lineup introduces multiple AI-powered features. AI VoiceScribe can transcribe calls, provide real-time translations, and summarise meetings. AI Call Assistant, powered by Google’s Gemini model, can translate both sides of a call. OPPO Docs and AI Assistant for Notes add further support with document organisation, translation, and summarisation.
Outdoor Mode 2.0
This feature is designed for gig workers and delivery riders. It improves screen brightness, enhances call clarity, and enables Smart Quick Launch for delivery apps. Order Rush Boost helps prioritise network bandwidth, while App Keep-Alive prevents essential apps from shutting down unexpectedly.
Software and smoothness
The phones run on ColorOS 15, which includes OPPO’s Dual-Engine Smoothness System combining the Trinity Engine and the Luminous Rendering Engine. The company claims this eliminates issues such as lag, latency, flicker, crash, mislaunch, and freeze. Additionally, OPPO’s 72-Month Fluency Protection 2.0 uses storage defragmentation and intelligent pre-loading to maintain performance for up to six years.
Cameras
The F31 Pro+ and F31 Pro are equipped with a 50MP main camera with two-axis OIS, while the F31 has a 50MP main sensor paired with two 2MP portrait lenses. All models support 4K video recording at 30 fps and include AI features such as AI Eraser 2.0, AI Unblur, and Clarity Enhancer.
Pricing and storage details will be announced during the official launch. Given the hardware, the F31 Series appears to be tailored for users who need reliable smartphones capable of handling heat, long hours of use, and everyday challenges.
Frequently Asked Questions
Q1: What is the launch date for the OPPO F31 Series in India?
A: The OPPO F31 Series will be launched and made available in India on September 15, 2025.
Q2: What are the main features of the OPPO F31 Series?
A: The main features include a focus on thermal management for high temperatures, a large 7,000 mAh battery with fast charging, and a durable 360° Armour Body. The series also has a suite of AI tools for productivity and an Outdoor Mode 2.0 for gig workers.
Q3: Which processors are used in the OPPO F31 series phones?
A: The F31 Pro+ uses the Qualcomm Snapdragon 7 Gen 3, the F31 Pro uses the MediaTek Dimensity 7300-Energy, and the F31 uses the MediaTek Dimensity 6300 SoC.
Q4: Does the F31 series support fast charging?
A: Yes, all F31 models come with an 80W SuperVOOC fast charging system that can charge the battery to 58% in 30 minutes.
