In a move that's set to shake up the mid-range smartphone market, OPPO has officially unveiled its latest F31 5G series in India. Comprising the premium F31 Pro+, the balanced F31 Pro, and the accessible F31, this lineup promises to deliver exceptional endurance and performance tailored for everyday Indian users. Launched on September 15, 2025, the series emphasizes durability against harsh conditions like extreme heat, dust, and water, making it ideal for delivery pros, shopkeepers, and anyone on the go. With sales kicking off from September 19 through OPPO's e-store, Flipkart, Amazon, and select offline retailers, these devices are poised to offer great value under Rs 35,000.

Power-Packed Battery Life for All-Day Reliability

At the heart of the F31 5G series is its standout 7,000mAh battery, a massive upgrade that ensures users stay connected without constant recharges. This silicon-carbon powerhouse supports 80W SuperVOOC fast charging, allowing the Pro+ and Pro models to hit 58% in just 30 minutes and a full charge in under 70 minutes. The base F31 follows suit with the same rapid charging tech. OPPO has also baked in smart features like bypass charging for gaming sessions, which diverts power directly to the device to minimize heat buildup and prolong battery health over 1,800 cycles—roughly five years of daily use. Whether you're navigating a busy day or streaming late into the night, this battery setup redefines longevity in the segment.

Unmatched Durability and Heat Resistance for Tough Conditions

OPPO dubs the F31 series the "Durable Champion" for good reason. All models boast triple IP ratings—IP66 for dust-tight protection, IP68 for submersion up to 1.5 meters, and IP69 for withstanding high-pressure hot water jets at 80°C. The aluminium frame and AGC DT-Star D+ glass add drop resistance, while the phones can handle 18 common liquids like tea or detergent without flinching. Heat management is another forte, with vapour chamber cooling systems: the Pro+ features a 5,219 mm² SuperCool VC for 21% better efficiency, the Pro has a 4,363 mm² setup, and the F31 includes a 4,300 mm² chamber. These keep performance steady even at 43°C, preventing throttling during intensive tasks in India's sweltering summers.

Impressive Displays, Cameras, and Performance Across the Lineup

The F31 Pro+ shines with a 6.8-inch flat AMOLED display at 120Hz, offering vibrant visuals and smooth scrolling. The Pro and F31 opt for 6.57-inch AMOLED panels with similar refresh rates. Powered by Snapdragon 7 Gen 3 for the Pro+ (scoring over 890,000 on AnTuTu), Dimensity 7300-Energy for the Pro, and Dimensity 6300 for the F31, these phones handle multitasking effortlessly, aided by ColorOS 15's AI optimizations. Camera-wise, the Pro+ and Pro pack a 50MP main sensor with OIS and a 2MP depth lens, plus 32MP front cams for sharp selfies. The F31 steps it down to a 50MP rear and 16MP front but still delivers solid 4K video and AI-enhanced portraits. Underwater shooting is possible up to 30 minutes thanks to IP68.

Priced competitively—the F31 Pro+ at Rs 32,999 (8GB+256GB) to Rs 34,999 (12GB+256GB), F31 Pro from Rs 26,999 (8GB+128GB), and F31 at Rs 22,999 (8GB+128GB)—this series blends toughness with modern smarts. Available in eye-catching colors like Gemstone Blue and Festival Pink, the OPPO F31 5G lineup is a smart pick for those seeking reliable, future-proof tech.

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