OPPO just launched the OPPO F31, F31 Pro and F31 Pro+ 5G smartphones in India as it had announced. The phones incorporate enlarged vapor chambers and thermal management systems to mitigate heat, while a 7,000 mAh battery with 80W SuperVOOC fast charging is included to provide all-day power.
For durability, the devices feature a 360° Armour Body with multi-layer shock absorption and carry IP69, IP68, and IP66 ratings for protection against drops, dust, and water.
The OPPO F31 series has also received an A+ certification from SGS (Société Générale de Surveillance) for High-Temperature Fluency, confirming stable frame rates, responsive touch, and fluid animations under heavy use.
Performance and Thermal Design
The F31 Pro+ is powered by Qualcomm’s Snapdragon 7 Gen 3 processor, built on a 4nm process. Its Octa-Core Kryo CPU includes a 2.63GHz Cortex-A715 Prime core, with an Adreno 720 GPU and Qualcomm AI Engine providing a claimed 60% improvement in performance per watt.
The device supports up to 24 GB of RAM (12 GB physical + 12 GB virtual) and UFS 3.1 storage. Its 5,219 mm² vapor chamber, which is 856 mm² larger than the previous generation, is designed to improve thermal dissipation.
The F31 Pro uses MediaTek’s Dimensity 7300-Energy, another 4nm octa-core processor, with a Mali-G615 MC2 GPU. It also offers up to 24 GB of RAM (12 GB physical + 12 GB virtual) and UFS 3.1 storage. This model features a 4,363 mm² vapor chamber and expanded graphite sheets to help dissipate heat.
The standard F31 model is equipped with the 6nm Dimensity 6300 SoC. This device includes a 4,300 mm² vapor chamber and extended graphite coverage, which is said to improve thermal efficiency by 21% over the prior generation.
The Network boost chip N1 identifies signal interference in real-time and adjusts antenna performance ensuring peak optimization ensuring peak
signal strength no matter how you hold your phone.
Software and System Fluency
All three smartphones run ColorOS 15 with OPPO’s Dual-Engine Smoothness System, which combines the Trinity Engine and the Luminous Rendering Engine. The phones will get 2 years of OS updates and 3 years of security updates.
An adaptive heat strategy raises the throttling threshold from 42°C to 44–45°C to maintain performance in warm conditions. These features are part of OPPO’s 72-Month Fluency Protection 2.0, which includes storage defragmentation and intelligent pre-loading to maintain performance over a period of six years.
Productivity and AI Tools
The F31 Series integrates several AI-powered tools aimed at professionals. AI VoiceScribe can record meetings or calls, providing real-time translation, subtitles, and summaries in over 29 languages, including Hindi, English, Kannada, and others.
The AI Call Assistant translates both sides of a call in real time using Google’s Gemini model. Additionally, OPPO Docs uses AI to summarize, translate, or rewrite documents, while the AI Assistant for Notes can restructure unorganized text and correct errors.
Battery and Charging
All models in the series are equipped with a 7,000 mAh battery. With 80W SuperVOOC charging, OPPO claims the battery can reach 58% capacity in 30 minutes and a full charge in just over an hour.
The phones also support wired reverse charging. Bypass charging is included to route power directly to the phone during gaming, which helps to reduce heat and extend battery lifespan.
Camera Systems
The F31 Pro+ features a 32MP front camera and a rear camera system with a 50MP main camera (OV50D40 sensor) with two-axis OIS and a 2MP monochrome sensor. The F31 Pro has a similar setup with OIS optical zoom. The standard F31 includes a 50MP main sensor and two 2MP portrait lenses, with a 16MP front camera.
The series supports 4K video at 30 fps and 4K underwater photography, with an IP68 rating allowing submersion up to 1.5 meters for 30 minutes.
OPPO F31 specifications
- 6.57-inch (2372 x 1080 pixels) FHD+ 120Hz OLED display with up to 1400 nits peak brightness, 100% DCI-P3 color gamut, Up to 2160Hz High-frequency PWM dimming, DT-Star D+ protection
- Octa Core MediaTek Dimensity 6300 Energy 6nm processor (2x Cortex-A76 @ 2.4GHz 6x Cortex-A55 @ 2GHz) with Arm Mali-G57 MC2 GPU
- 8GB / 12GB LPDDR4X RAM with 128GB / 256GB UFS 2.2 storage
- Android 15 with ColorOS 15.0
- Dual SIM (nano + nano)
- 50MP rear camera with OV50D40 sensor, f/1.8 aperture, OIS, 2MP depth camera with Galaxy Core 02M1B sensor, f/2.4 aperture
- 16MP front-facing camera with IMX480 sensor, f/2.4 aperture
- In-display optical fingerprint sensor, Infrared sensor
- Dimensions: 158.16×75.02×8mm;Weight: 185g
- Military-grade durability (MIL-STD-810H), Dust and water resistant (IP66 + IP68 + IP69 ratings)
- USB Type-C audio, Stereo speakers, Hi-Res audio
- 5G SA/ NSA (n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78 bands), Dual 4G VoLTE, Wi-Fi 6 802.11 ax (2.5GHz + 5GHz), Bluetooth 5.4, GPS/ GLONASS/ Beidou, USB Type-C 2.0
- 7000mAh (typical) battery with 80W fast charging
OPPO F31 Pro 5G specifications
- 6.57-inch (2372 x 1080 pixels) FHD+ 120Hz OLED display with up to 1400 nits peak brightness, 100% DCI-P3 color gamut, Up to 2160Hz High-frequency PWM dimming, DT-Star D+ protection
- Octa Core (2 x 2.5GHz Cortex-A78 + 6 x 2GHz Cortex-A55 CPUs) MediaTek Dimensity 7300- Energy 4nm processor with Mali-G615 MC2 GPU
- 8GB LPDDR4X RAM with 128GB / 256GB UFS 3.1 storage
- Android 15 with ColorOS 15.0
- Dual SIM (nano + nano)
- 50MP rear camera with OV50D40 sensor, f/1.8 aperture, OIS, 2MP depth camera with Galaxy Core 02M1B sensor, f/2.4 aperture
- 32MP front-facing camera with Galaxy Core 32E2 sensor, f/2.4 aperture
- In-display optical fingerprint sensor, Infrared sensor
- Dimensions: 158.16×74.99×7.96mm;Weight: 190g
- Military-grade durability (MIL-STD-810H), Dust and water resistant (IP66 + IP68 + IP69 ratings)
- USB Type-C audio, Stereo speakers, Hi-Res audio
- 5G SA/ NSA (n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78 bands), Dual 4G VoLTE, Wi-Fi 6 802.11 ax (2.5GHz + 5GHz), Bluetooth 5.4, GPS/ GLONASS/ Beidou, USB Type-C 2.0
- 7000mAh (typical) battery with 80W fast charging
OPPO F31 Pro+ 5G specifications
- 6.8-inch (2800 × 1280 pixels) FHD+ 120Hz OLED display with up to 1600 nits peak brightness, 100% DCI-P3 color gamut, Up to 2160Hz High-frequency PWM dimming, AGC DT-Star D+ glass protection
- Octa Core (2 x 2.5GHz Cortex-A78 + 6 x 2GHz Cortex-A55 CPUs) MediaTek Dimensity 7300 4nm processor with Mali-G615 MC2 GPU
- 8GB / 12GB LPDDR4X RAM with 256GB UFS 3.1 storage
- Android 15 with ColorOS 15.0
- Dual SIM (nano + nano)
- 50MP rear camera with OV50D40 sensor, f/1.8 aperture, OIS, 2MP depth camera with Galaxy Core 02M1B sensor, f/2.4 aperture
- 32MP front-facing camera with Galaxy Core 32E2 sensor, f/2.4 aperture
- In-display optical fingerprint sensor, Infrared sensor
- Dimensions: 158.16×74.99×7.7mm (Gemstone Blue) / 7.8mm (Himalayan White and Festival Pink) ;Weight: 195g (Gemstone Blue) / 204g (Himalayan White and Festival Pink)
- Military-grade durability (MIL-STD-810H), Dust and water resistant (IP66 + IP68 + IP69 ratings)
- USB Type-C audio, Stereo speakers, Hi-Res audio
- 5G SA/ NSA (n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78 bands), Dual 4G VoLTE, Wi-Fi 6 802.11 ax (2.5GHz + 5GHz), Bluetooth 5.4, GPS/ GLONASS/ Beidou, USB Type-C 2.0
- 7000mAh (typical) battery with 80W fast charging
Pricing and availability
The OPPO F31 comes in Midnight Blue, Cloud Green and Bloom Red colours and is priced at Rs. 22,999 for the 8GB + 128GB model and the 8GB + 256GB model costs Rs. 24,999.
The OPPO F31 Pro comes in Desert Gold and Space Grey colours and is priced at Rs. 26,999 for the 8GB + 128GB model, Rs. 28,999 for the 8GB + 256GB model and the 12GB + 256GB model costs Rs. 30,999.
The OPPO F31 Pro+ comes in Gemstone Blue, Himalayan White and Festive Pink colours and is priced at Rs. 32,999 for the 8GB + 256GB model and the 12GB + 256GB model costs Rs. 34,999.
The phones are available to order from OPPO India online store, Amazon.in, Flipkart and offline stores starting from today. The F31 Pro series will be available from September 27th and the F31 will be available from September 27th.
Launch offers
- 10% instant bank discount
- Additional exchange bonus up to Rs. 3500
- Up to 6 months no-cost EMI