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Oppo F31 series launch: durability and large batteries

photo: Oppo

The Oppo F31 series smartphones debuted in India today. What do the Oppo F31, Oppo F31 Pro, and Oppo F31 Pro+ offer?

All three models are equipped with large batteries and durable casings designed to withstand the rigors of everyday use. Impact resistance is guaranteed by MIL-STD-810H certification, while dust and moisture protection meets IP66, IP68, and IP69 standards. Furthermore, all three models have impressive OLED displays.

Oppo F31 and Oppo F31 Pro have 6.57-inch screens with Full HD+ resolution, a 120Hz refresh rate, and up to 1400 nits of brightness, with 2160Hz PWM dimming. The Oppo F31 Pro+ has a 6.8-inch screen, still FHD+ with a 120 Hz refresh rate. However, this screen achieves a higher brightness of 1600 nits. All three smartphones use MediaTek processors, with the base model having the Dimensity 6300, while the Pro and Pro+ have the Dimensity 7300. All feature memory up to 12+256 GB (LPDDR4X and UFS 2.2 in the base, LPDDR4X and UFS 3.1 in the Pro) and run the Android 15 operating system with the ColorOS 15 interface. All are powered by similar 7000 mAh batteries with 80-watt charging.

The cameras are similar in all three models, with a basic 50+2 MP rear sensor setup (f/1.8+f/2.4), with the Pro variants also featuring optical image stabilization. The front cameras also differ. The base model has a 16 MP selfie camera, while the Pro variants have 32 MP. Features also include under-screen fingerprint readers, stereo speakers, Dual SIM, and infrared emitters.

The price list, as is typical with Oppo, includes a number of variants:

  • Oppo F31 8+128 GB - 23,000 rupees, $260 USD
  • Oppo F31 8+256 GB - 25,000 rupees rupees, USD 285
  • Oppo F31 Pro 8+128 GB - 27,000 rupees, USD 310
  • Oppo F31 Pro 8+256 GB - 29,000 rupees, USD 330
  • Oppo F31 Pro 12+256 GB - 31,000 rupees, USD 355
  • Oppo F31 Pro+ 8+256 GB - 33,000 rupees, USD 375
  • Oppo F31 Pro+ 12+256 GB - 45,000 rupees, USD 510

Oppo F31 5G   go to specification →

  • Display features icon 6.57" AMOLED  1080 x 2376 px
    Aspect ratio: 19.8:9
  • Phone’s dimensions and size icon 158.20 x 75.00 x 8.00 mm  185.00 g
  • Basic cameras data icon 50 Mpx  Front: 16 Mpx
  • Battery data icon Si-Car 6500 mAh 
  • RAM memory icon 8 GB 
  • Internal memory icon 128 GB, 256 GB 
  • Processor model icon MediaTek Dimensity 6300 MT6835T 
  • Announcement date – calendar icon 3Q 2025
    (8 months ago) 
  • Phone thickness and battery icon 812.50  C2T  Battery capacity to thickness ratio
  • Screen-to-body ratio icon 88.40%  Screen-to-body ratio

Oppo F31 Pro 5G   go to specification →

  • Display features icon 6.57" AMOLED  1080 x 2372 px
    Aspect ratio: 19.8:9
  • Phone’s dimensions and size icon 158.20 x 75.00 x 8.10 mm  191.00 g
  • Basic cameras data icon 50 Mpx  Front: 32 Mpx
  • Battery data icon Si-Car 7000 mAh 
  • RAM memory icon 8 GB, 12 GB 
  • Internal memory icon 128 GB, 256 GB 
  • Processor model icon MediaTek Dimensity 7300 Energy 
  • Announcement date – calendar icon 3Q 2025
    (8 months ago) 
  • Phone thickness and battery icon 864.20  C2T  Battery capacity to thickness ratio
  • Screen-to-body ratio icon 88.50%  Screen-to-body ratio

Oppo F31 Pro+ 5G   go to specification →

  • Display features icon 6.8" AMOLED  1280 x 2800 px
    Aspect ratio: 19.7:9
  • Phone’s dimensions and size icon 163.13 x 77.58 x 7.90 mm  204.00 g
  • Basic cameras data icon 50 Mpx  Front: 32 Mpx
  • Battery data icon Si-Car 7000 mAh  Quick battery charging
  • RAM memory icon 8 GB, 12 GB 
  • Internal memory icon 256 GB 
  • Processor model icon Qualcomm Snapdragon 7 Gen 3 SM7550-AB 
  • Announcement date – calendar icon 3Q 2025
    (8 months ago) 
  • Phone thickness and battery icon 886.08  C2T  Battery capacity to thickness ratio
  • Screen-to-body ratio icon 89.10%  Screen-to-body ratio

About the author
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Adam Łukowski

For 25 years in the modern technology industry. He remembers the first moniles and the beginnings of mobile Internet, and has also worked in widely read magazines. From the very beginning, mGSM.pl has been providing up-to-date specialists and reviews devices, using the knowledge and experience acquired over the years.

Articles: 5104

Translated by::

Monika Krasicka-Kulińska
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