OPPO F31 Pro 5G is a mid-ranger built around three big promises: a huge 7,000mAh battery, rare triple IP rating (IP66/IP68/IP69), and a 120Hz AMOLED that reaches 1,400 nits in high-brightness mode. If you care more about battery life, water/dust resistance, and a charger in the box than having a telephoto lens or five years of Android upgrades, this phone should be on your shortlist. OPPO is pitching it to everyday Indian users who work and commute in heat, dust, and rain shopkeepers, cab drivers, and anyone who needs a phone that just keeps going.
The F31 Pro sits below the F31 Pro+ and above the F31. In India, the F31 Pro is offered in 8/128, 8/256, and 12/256 variants and went on open sale on September 19, while the vanilla F31 follows on September 27. Colors include Desert Gold and Space Grey.
Table of Contents
Price and variants in India
- 8GB/128GB: ₹26,999
- 8GB/256GB: ₹28,999
- 12GB/256GB: ₹30,999
- Colors: Desert Gold, Space Grey
- First sale: September 19, 2025 (Pro/Pro+); F31 from September 27, 2025
- Retailers: OPPO e-store, Flipkart, Amazon, offline partners
Key Specifications & Features
- Display: 6.57-inch FHD+ (2372×1080) AMOLED, 120Hz adaptive (60/90/120), 10-bit color, 600 nits typical, 1,400 nits HBM; DT-Star D+ cover glass.
- Chipset: MediaTek Dimensity 7300-Energy (4nm), 4×Cortex-A78 @2.5GHz + 4×Cortex-A55 @2.0GHz; Mali-G615 GPU; AnTuTu claim 730k+.
- Battery/Charging: 7,000mAh (typ), 80W SUPERVOOC; 37% in ~20 minutes (claimed); stable charging in high/low temps; charger in box.
- Cooling: 4,363 mm² vapor chamber (VC).
- Cameras: Rear 50MP main with two-axis OIS + 2MP mono; front 32MP; up to 4K30 (rear and front). Underwater 4K video is advertised thanks to IP ratings.
- Connectivity: Wi-Fi 6, Bluetooth 5.4 with SBC/AAC/LDAC/aptX/aptX HD; USB-C.
- 5G bands (India): n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78.
- Software: ColorOS 15 (Android 15). OPPO and multiple outlets indicate 2 years OS + 3 years security for the F31 series.
- IP rating: IP66/IP68/IP69, “360° Armour Body,” plus MIL-style environmental tests.
- Weight: ~190–191g.
- SAR (India): Head 1.127 W/kg; Body 0.845 W/kg.
Display & durability
The combination of a 10-bit, 120Hz AMOLED and listed 1,400-nit HBM is strong for this segment. OPPO’s IP69/IP68/IP66 combo is genuinely rare under ₹30k; the company even promotes “rear-camera 4K underwater” capture. You still shouldn’t take saltwater or hot-tub dips lightly, but for rain, splashes, and dusty worksites, this is as good as mainstream phones get.
Performance & storage
Dimensity 7300-Energy is a power-efficient 4nm part. Paired with UFS 3.1 storage (not the slower UFS 2.2 many rivals use), app installs and big game loads should feel snappier. Expect smooth day-to-day performance and mid-tier gaming at 60fps with tuned settings; we’ll talk thermals next.
Camera facts
A 50MP OIS primary plus a 2MP secondary keeps things simple. The nice touch is 4K30 on both rear and front cameras handy for creators who vlog in 4K. OPPO also lists dual-view video, 1080p/120 slow-mo, and an underwater mode. We’ll note how stabilization crops the frame in EIS/OIS modes during real-world testing.
Performance and thermals Management
CPU/GPU behavior
OPPO leans on a sizeable 4,363 mm² VC and lab testing at high ambient temps. In daily use, you can expect steady frame rates for popular titles at 60fps, with brief dips during long sessions in the afternoon heat. The 7,000mAh pack also helps sustain clocks because it spreads thermal load and reduces throttling risk versus smaller cells. OPPO cites a “Smooth in High Heat” SGS certification; we’ll treat it as a helpful indicator, not gospel.
Storage & RAM
The spec sheet calls out LPDDR4X and UFS 3.1 across the board (8/128, 8/256, 12/256). That’s a win for a phone at ₹26,999 because many competitors still ship UFS 2.2 on base trims. Faster storage shows up when installing big games, importing edits in CapCut, or decompressing large WhatsApp backups.
Benchmark comparisons
On paper, the F31 Pro’s 7300-Energy slots near Snapdragon 7s Gen 2/Gen 3 phones. We’ll compare against Nothing Phone 3a Pro (Snapdragon 7s Gen 3), Redmi Note 14 Pro+ (Snapdragon 7s Gen 3), and realme 13 Pro+ (Snapdragon 7s Gen 2). Expect similar browser and social app snappiness, with GPU differences emerging in longer gaming sessions.
User Experience Analysis
Daily usage scenarios
Two things pop in daily use: screen readability outdoors and battery anxiety (or the lack of it). The panel’s 1,400-nit HBM helps with Google Maps at noon, and the 7,000mAh pack shrugs off a day of UPI, camera, and Reels. The 80W charger is in the box, which still matters in 2025.
Interface and design
ColorOS 15 on Android 15 is feature-rich and familiar if you’ve used recent OPPO or realme phones. The company and multiple outlets are messaging 2 OS versions + 3 years security for the F31 series shorter than the 4–5 year promises on some rivals, but straightforward and realistic for this price.
Battery life and charging
OPPO also claims longevity: 1,830 charging cycles and “5 years of reliable power.” That’s a lab claim, but the combination of a large pack and relatively efficient SoC should comfortably deliver 1.5–2 days for light-to-moderate users. In a pinch, OPPO cites ~37% in 20 minutes and specific “watch YouTube for ~2.8 hours after a 5-minute top-up” guidance. Real numbers will vary with temperature and brightness.
Pros and Cons Breakdown
Major advantages
- Massive 7,000mAh battery with 80W charging and the charger is included.
- Triple IP66/IP68/IP69 plus a reinforced body; uncommon at this price.
- OIS main camera and 4K30 on rear and front cameras.
- UFS 3.1 storage across variants; faster installs and app launches than UFS 2.2 phones.
- Full Indian 5G band list (n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78), plus Wi-Fi 6 and BT 5.4.
Notable limitations
- Update policy (2 OS + 3 years security) is shorter than some peers now promising 4-5 OS versions.
- Secondary cameras are basic (2MP mono).
- OPPO doesn’t list PWM dimming frequency or VoNR support for the Pro-treat as unconfirmed.
Value for money
At ₹26,999 (8/128), the F31 Pro delivers a unique battery + durability combo. If you prize long uptime, rain/dust peace of mind, and a box charger, the value is clear. If you want longer software support or a better telephoto camera, check the alternatives below.
Competitor Comparison
Quick table – OPPO F31 Pro 5G vs rivals
| Phone | SoC | Display | Peak Brightness | Main Camera | Battery + Charge | IP Rating | Weight | Price (India) |
|---|---|---|---|---|---|---|---|---|
| OPPO F31 Pro 5G | Dimensity 7300 (4nm) | 6.57″ FHD+ AMOLED 120Hz | 1,400 nits HBM | 50MP OIS + 2MP | 7,000 mAh, 80W charger in box | IP66/68/69 | ~190–191 g | ₹26,999 |
| Nothing Phone 3a Pro | Snapdragon 7s Gen 3 | ~6.7″ AMOLED 120Hz | OEM listed | 50MP main (+ extras) | 5,000 mAh, ~fast charge | (no IP69) | >200 g range | ~₹26k–32k street |
| Redmi Note 14 Pro+ | Snapdragon 7s Gen 3 | 120Hz AMOLED (1.5K class) | OEM listed | High-res main + OIS/tele | ~5,000–5,110 mAh, 120W | IP68 | ~193 g | ~₹27k–32k street |
| realme 13 Pro+ | Snapdragon 7s Gen 2 | 6.7″ AMOLED 120Hz curved | OEM listed | 50MP OIS + periscope | 5,200 mAh, 80W | (varies) | ~190–195 g | ~₹25k–27k street |
Takeaways: OPPO wins battery capacity, IP rating, and in-box charger. Redmi pushes faster charging and higher-res camera options. Nothing offers a clean software approach and tends to promise more years of updates, though street prices fluctuate. realme’s periscope at this price is rare.
Should you buy F31 Pro 5G
Who should buy this
- Heavy users who hate mid-day charging.
- People who work outdoors or in dusty/wet environments and want IP69 reassurance.
- Buyers who want UFS 3.1 speed and a charger in the box without paying extra.
Who should avoid this
- Camera-first shoppers who want a telephoto or a more ambitious secondary setup.
- Long-term owners who want 4–5 Android version upgrades; the F31 series is positioned at 2+3.
Best alternatives
- Nothing Phone 3a Pro – cleaner UI, longer support track record.
- Redmi Note 14 Pro+ 5G – fast 120W charging, high-res camera options, IP68.
- realme 13 Pro+ – periscope zoom at mid-range pricing.
Bottom Line and checklist
Bottom Line: If battery life, durability, and an in-box charger top your list, the OPPO F31 Pro 5G is easy to recommend at ₹26,999. The software support window is shorter than some rivals, and the secondary cameras are basic. But the triple IP rating, 7,000mAh battery, and 120Hz AMOLED are standout wins.
Buyer checklist
- Need very long battery life (7,000mAh)
- Want triple IP rating (IP66/IP68/IP69)
- Okay with 2 OS + 3 years security
- Happy with OIS main + 4K30, no telephoto
- Prefer a charger in the box
Full specifications of F31 Pro 5G (India)
| Category | Spec |
|---|---|
| Model / Colors | OPPO F31 Pro 5G (CPH2763); Space Grey, Desert Gold. |
| Dimensions & Weight | 15.82 cm (H) × 7.50 cm (W); thickness: 0.80 cm (Space Grey) / 0.81 cm (Desert Gold); ~190 g (Space Grey) / ~191 g (Desert Gold). |
| Display | 16.69 cm (~6.57″) AMOLED, FHD+ 2372×1080, 120 Hz adaptive (60/90/120), touch sampling: 120 Hz (default) / 240 Hz (max); 10-bit (1.07B colors), 100% DCI-P3 (Vivid), 100% sRGB (Natural), 397 ppi; typical brightness 600 nits, HBM 1400 nits; DT-Star D+ cover glass; screen-to-body 93.0%. |
| Chipset / CPU / GPU | MediaTek Dimensity 7300-Energy: 8-core CPU (4× Cortex-A78 @ 2.5 GHz + 4× Cortex-A55 @ 2.0 GHz); Arm Mali-G615 @ 1.047 GHz GPU. |
| Memory & Storage | 8 GB + 128 GB / 8 GB + 256 GB / 12 GB + 256 GB; LPDDR4X RAM; UFS 3.1 storage; USB OTG supported. |
| Rear Cameras | 50 MP wide: f/1.8, FOV 78°, 5P lens, AF, two-axis OIS + 2 MP mono: f/2.4, FOV 89°, 3P lens. Modes: Photo, Video, Portrait, Night, Panorama, Slo-Mo, Dual-View Video, Time-Lapse, Sticker, Hi-Res, Underwater, Pro, Doc Scanner. Video (rear): 4K@30, 1080p@60/30, 720p@30; EIS/OIS video: 1080p@60; Slo-Mo: 1080p@120, 720p@240; Time-Lapse: 1080p@30. |
| Front Camera | 32 MP: f/2.4, FOV 82°, 5P lens. Modes: Photo, Video, Portrait, Night, Panorama, Dual-View, Time-Lapse, Retouch, Screen Fill Light, Hi-Res. Video (front): 4K@30, 1080p@30, 720p@30; EIS video: 1080p@30 / 720p@30. |
| Battery | 7000 mAh (typical) / 6830 mAh (rated); 80 W SUPERVOOC max (official fusion fast charging). Compatibility: 80 W SUPERVOOC, 44 W third-party fusion fast charging, 33 W PPS, 13.5 W PD, 13.5 W QC. |
| Cooling | 4,363 mm² vapor chamber (SuperCool VC). |
| Ruggedness / IP | IP69 + IP68 + IP66 water & dust resistance; 360° Armour Body; military-style environmental tests highlighted on product page. (Always check service policy on liquid damage.) |
| Biometrics & Sensors | In-display optical fingerprint sensor; facial recognition; proximity, ambient light, color temperature, e-compass, accelerometer, gyroscope. |
| Connectivity (wireless) | Wi-Fi 6 (802.11ax), Wi-Fi 5/ a/b/g/n; Wi-Fi Display & tethering; Bluetooth 5.4 (LE) with codecs SBC, AAC, LDAC, aptX, aptX HD. |
| Ports / Audio | USB Type-C; supports Type-C digital and analog headphones. |
| SIM / Network | Dual-SIM (nano-SIM); 5G NR: n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78. LTE FDD: 1/3/5/8/19/28B; LTE TDD: 38/40/41/42/48; WCDMA: 1/8; GSM: 900/1800 MHz. (CDMA: not supported.) |
| Location | Single-band GNSS: BeiDou, GPS, GLONASS, Galileo, QZSS; A-GPS, WLAN, and cellular positioning supported. |
| Software | ColorOS 15.0 (Android 15). |
| SAR (India) | Head: 1.127 W/kg; Body: 0.845 W/kg. |
| In-box Contents | Phone, 80W charger, USB data cable, SIM ejector tool, protective case, quick guide. |
Source: OPPO F31 Pro 5G – Model No: CPH2763
Featured Snippet Answer boxes
What is the price of OPPO F31 Pro 5G in India?
OPPO F31 Pro 5G starts at ₹26,999 for 8/128, ₹28,999 for 8/256, and ₹30,999 for 12/256. Open sale in India began September 19, 2025 via OPPO e-store, Flipkart, Amazon, and offline partners.
Does OPPO F31 Pro 5G have OIS and 4K video?
Yes. The 50MP main camera has two-axis OIS, and both the rear and front cameras record 4K at 30fps.
How many 5G bands does OPPO F31 Pro 5G support?
Bands include n1, n3, n5, n8, n28B, n38, n40, n41, n77, n78 covering India’s major 5G networks.
How long does the battery last in daily use?
With a 7,000mAh cell and efficient 4nm processor, a day and a half is realistic for heavy users; lighter users may see two days. OPPO claims ~37% in 20 minutes with the 80W charger.
How many Android updates will OPPO F31 Pro 5G get?
OPPO’s F31 series is positioned for 2 Android version updates and 3 years of security patches.
Is a charger included in the box?
Yes 80W SUPERVOOC adapter ships in the retail package.
Display and audio
The panel supports 100% DCI-P3 in Vivid mode and 100% sRGB in Natural, with a 240Hz touch sampling peak. Audio specifics aren’t highlighted beyond Bluetooth codec support (SBC/AAC/LDAC/aptX/aptX HD); you’ll want to pair decent buds to make the most of LDAC or aptX HD.
Cameras
Out of the box, you get a straightforward setup: 50MP wide with OIS plus a 2MP mono helper. Portraits lean on the main sensor; the mono sensor is mostly for depth/filters. OPPO lists an underwater camera mode, which is rare and enabled by the IP ratings-still, use common sense and rinse off freshwater exposure. Video tops out at 4K30 on both cameras, with 1080p/60 for smoother motion.
Network and 5G bands
The band list is unusually complete for India, including n77/n78 for sub-6 5G. OPPO’s “AI LinkBoost 3.0” and carrier aggregation claims are marketing-heavy but align with the hardware; dual-SIM is supported (nano-SIM). We didn’t find an official VoNR line item for the Pro on OPPO’s spec page-assume VoLTE is fine; treat VoNR as unconfirmed.
Software and updates
The F31 Pro ships with ColorOS 15 (Android 15). For long-term support, the series is described as 2 years of Android updates and 3 years of security. That’s behind the best update promises in 2025, but it’s clear and typical for mid-range OPPO. If you keep phones 4+ years, a Nothing or Samsung A-series may suit you better.
Battery and charging
Between the 7,000mAh cell, 80W charging, and big VC, the F31 Pro is designed for India’s heat. OPPO quotes specific charging snippets (e.g., ~37% in 20 minutes; “5-minute charge ≈ 2.8 hours of YouTube”). Those are lab claims; expect slower top-ups in extreme heat, and slightly quicker at room temp. Charger’s in the box, which cuts ownership costs.
Design and build quality
The “360° Armour Body” includes an aluminum alloy motherboard cover and cushioned corners. The phone lists MIL-style environmental tests; paired with triple IP, it’s a rare “rugged-leaning” mainstream device that still looks like a normal slab. Weight is reasonable at ~190–191g despite the battery size.
Comparison table (spec highlights)
| Feature | F31 Pro 5G | Nothing Phone 3a Pro | Redmi Note 14 Pro+ | realme 13 Pro+ |
|---|---|---|---|---|
| SoC | Dimensity 7300-Energy | Snapdragon 7s Gen 3 | Snapdragon 7s Gen 3 | Snapdragon 7s Gen 2 |
| Display | 6.57″ FHD+ 120Hz | ~6.7″ 120Hz | 1.5K-class 120Hz | 6.7″ 120Hz curved |
| Peak/Listed brightness | 1,400 nits HBM | OEM listed | OEM listed | OEM listed |
| Cameras | 50MP OIS + 2MP; 32MP front | 50MP main triple | High-res + OIS + tele | 50MP OIS + periscope |
| Battery/charge | 7,000mAh, 80W | 5,000mAh | ~5,110mAh, 120W | 5,200mAh, 80W |
| IP rating | IP66/IP68/IP69 | (no IP69) | IP68 | varies |
| Base price | ₹26,999 | ~₹26k–32k street | ~₹27k–32k street | ~₹25k–27k street |
Conclusion
If you want a phone that feels purpose-built for India heat, dust, rain, power cuts the OPPO F31 Pro 5G hits the brief. The 7,000mAh battery, in-box 80W charger, 120Hz AMOLED with solid brightness, and IP66/IP68/IP69 rating are real advantages under ₹30k. The trade-offs: a shorter 2+3 update horizon and a basic secondary camera. If you value battery and durability first, buy it with confidence. If you want longer updates or telephoto, consider the Nothing Phone 3a Pro or Redmi Note 14 Pro+.
Last updated: September 20, 2025
Source: OPPO
