OPPO F31 Pro 5G Series Launches with 7000mAh Battery, 80W Charging, and Triple Waterproofing

On: Tuesday, September 16, 2025 9:35 AM
OPPO F31 Pro 5G series

OPPO F31 Pro 5G series: OPPO F31 Pro 5G and F31 Pro+ 5G pack a huge 7000mAh battery, Armour Body, triple waterproof ratings, 80W charging, AMOLED displays, and 4K30 video front and rear.

OPPO’s new F31 Pro 5G and F31 Pro+ 5G are made for people who want phones that can keep up with real life. With a giant 7000mAh battery, tough protection against water and drops, and bright AMOLED displays, these devices are built to stay strong, look sharp, and last all day without worry.

Bright and Smooth Displays

The F31 Pro 5G (CPH2763) features a 6.57-inch AMOLED display with FHD+ resolution (2372×1080). It offers 10-bit color, a smooth 120Hz adaptive refresh rate, 240Hz touch sampling, and up to 1400 nits brightness for easy outdoor visibility. The screen is protected by AGC DT-Star D+ glass, adding durability without losing clarity.

The F31 Pro+ 5G (CPH2757) raises the bar with a 17.27 cm (~6.8-inch) BOE Q10 AMOLED display, offering FHD+ 2800×1280 resolution, 10-bit color, up to 120Hz refresh rate, 240Hz touch sampling, and a peak 1600 nits HBM brightness. It is protected by AGC DT-Star D+ cover glass, making it both sharp and resilient.

Dimensions and Weight

Despite their rugged designs, both phones remain slim and easy to carry. The F31 Pro 5G measures about 15.82 cm in height, 7.50 cm in width, and comes in at 0.80 cm thick for Space Grey or 0.81 cm for Desert Gold. Weight is also light for its size, at 190g (Space Grey) and 191g (Desert Gold).

The F31 Pro+ 5G is slightly taller at 16.31 cm in height and 7.76 cm wide, with a thickness of 0.77 cm for Gemstone Blue and 0.79 cm for Himalayan White and Festival Pink. Weight varies by finish, with the Gemstone Blue model at 195g and the Himalayan White and Festival Pink versions at 204g.

Performance and Software

Oppo F31 Pro+ 5G

The F31 Pro 5G runs on the MediaTek Dimensity 7300-Energy chipset, built on a 4nm process with eight cores and a Mali-G615 GPU for reliable performance and efficiency.

The F31 Pro+ 5G is powered by the Qualcomm Snapdragon 7 Gen 3 with an Adreno 7-series GPU, giving it more headroom for gaming and multitasking.

OPPO F31 Pro 5G

Both phones come with ColorOS 15.0, OPPO’s latest software with smooth animations, enhanced privacy tools, and smart power management features.

Battery That Lasts

A major highlight is the 7000mAh single-cell battery on both models, paired with 80W SUPERVOOC fast charging. OPPO says the battery can handle 1,830 full charge cycles, roughly five years of daily use without losing capacity. Charging is reliable even in extreme conditions, from -20 °C to 43 °C, making these phones dependable in all environments.

The Pro+ version also supports 10W reverse wired charging, handy for topping up accessories or another phone.

Cameras Built for Everyday Shots

Both models carry a 50MP main camera with OIS and a 2MP mono sensor, along with a 32MP front camera for selfies and video calls.

  • The F31 Pro 5G records video up to 4K30 on both front and rear cameras, a rare feature in this category.
  • The F31 Pro+ 5G shoots 4K30 with OIS/EIS on the rear and 1080p30 selfies with EIS, plus it adds an Underwater mode for touch-friendly controls when wet.

Rugged and Reliable

Both phones are made for real-world durability. They come with IP69, IP68, and IP66 ratings, protecting against dust, spills, and even high-pressure water jets. The 360° Armour Body and seven MIL-STD-810H tests ensure resistance to drops, vibration, and extreme environments. These are phones you can carry without worrying about babying them.

Smarter Connectivity

The F31 Pro+ 5G includes a NetworkBoost Chip S1, AI LinkBoost 3.0, and Beacon Link 2.0, which help maintain stable connections in weak-signal areas and even allow Bluetooth relay for voice and text in emergencies.

Both models support dual-SIM 5G across a wide range of bands, Wi-Fi 6, USB-C with both digital and analog audio, and Bluetooth with SBC, AAC, LDAC, aptX, and aptX HD. The F31 Pro uses Bluetooth 5.4, while the Pro+ uses Bluetooth 5.2. Navigation is improved with dual-frequency GPS + NavIC for better accuracy.

Pricing, Storage, and Availability

OPPO has positioned the F31 series in the mid-range premium category, making them strong competitors in their price bracket.

F31 Pro 5G (Colors: Space Grey, Desert Gold):

  • 8GB + 128GB — ₹26,999 (from ₹4,500/month)
  • 8GB + 256GB — ₹28,999 (from ₹4,833/month)
  • 12GB + 256GB — ₹30,999 (from ₹5,167/month)

F31 Pro+ 5G (Colors: Festival Pink, Himalayan White, Gemstone Blue):

  • 8GB + 256GB — ₹32,999 (from ₹5,500/month)
  • 12GB + 256GB — ₹34,999 (from ₹5,833/month)

Storage uses LPDDR4X RAM and UFS 3.1 with USB OTG support across all models.

Global availability, including the US market, has not yet been confirmed, but OPPO is likely to expand beyond India in the coming months.

Which One to Pick?

The F31 Pro 5G is the better fit if you want efficient performance, flexible storage options, and even 4K selfie video. The F31 Pro+ 5G makes sense if you prefer a larger, sharper display and stronger connectivity features for tougher environments.

Either way, both models stand out for their long-lasting battery, rugged design, and dependable connectivity, making them some of the toughest mid-range smartphones on the market.

OPPO F31 Pro 5G And OPPO F31 Pro+ 5G – Full Specifications

Here are the specifications of the OPPO F31 Pro 5G and OPPO F31 Pro+ 5G:

CategoryOPPO F31 Pro 5GOPPO F31 Pro+ 5G
Build & Size15.82 × 7.50 × 0.80–0.81 cm; 190–191 g16.31 × 7.76 × 0.77–0.79 cm; 195–204 g
ColorsSpace Grey, Desert GoldFestival Pink, Himalayan White, Gemstone Blue
DurabilityIP69/IP68/IP66; 360° Armour Body; MIL-STD-810H (7 tests)Same, with stronger diamond architecture
Display6.57″ AMOLED, FHD+ 2372×1080, 120Hz, 1400 nits HBM6.8″ BOE Q10 AMOLED, FHD+ 2800×1280, 120Hz, 1600 nits HBM
ChipsetMediaTek Dimensity 7300-Energy, Mali-G615 GPUSnapdragon 7 Gen 3, Adreno GPU
Memory & Storage8+128 GB / 8+256 GB / 12+256 GB8+256 GB / 12+256 GB
SoftwareColorOS 15.0ColorOS 15.0
Rear Cameras50 MP OIS + 2 MP mono50 MP OIS + 2 MP mono
Front Camera32 MP, up to 4K3032 MP, up to 1080p30 (EIS)
VideoRear: 4K30; Front: 4K30Rear: 4K30 OIS/EIS; Front: 1080p30 EIS
Battery7000 mAh, 80W SUPERVOOC, 1,830 cycles7000 mAh, 80W SUPERVOOC + 10W reverse charge, 1,830 cycles
ConnectivityDual-SIM 5G, Wi-Fi 6, BT 5.4, USB-C, TÜV certified, AI LinkBoost 3.0Dual-SIM 5G, Wi-Fi 6, BT 5.2, NetworkBoost Chip S1, AI LinkBoost 3.0
LocationGPS, GLONASS, Beidou, Galileo, QZSS (single-band)Dual-frequency GNSS + NavIC
BiometricsIn-display fingerprint, face unlockSame
SARHead: 1.127 W/kg; Body: 0.845 W/kgHead: 1.160 W/kg; Body: 0.988 W/kg
In the BoxPhone, 80W charger, USB-C cable, SIM tool, case, guideSame
NotesUnderwater use limited; 30 min ≤1.5 m; waterproofing may degradeSame limitations + charger power may vary

Sagar Sarkar

I’m Sagar Sarkar, a tech enthusiast from Bangladesh with a deep passion for electronic gadgets and devices. My journey into technology began in 2023 at a mobile and computer repair shop, where I worked hands-on as a technician. Over time, I started sharing my thoughts on gadgets through social media covering features, buying guides, and in depth reviews. I have tested and reviewed a wide range of products, including smartphones, tablets, laptops, audio gadget, wearables, and smart home devices. Before joining NYTPO, I wrote extensively for tech blogs, blending practical experience with a love for exploring the latest innovations.

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