Oppo’s response to the prevailing vibes that “the mobile phone industry [is] getting boring” is about to be unleashed in the form of the K13 Turbo series, the first of their line to boast an actual spinning fan as part of their thermal management system.

The K13 Turbo Pro will reportedly dodge a typical drawback of integrating the technology, which has been around since RedMagic introduced the concept in the 6S Pro in 2021. 

Active cooling often makes a mobile device thicker than normal; even the latest RedMagic 10S Pro is 8.9 millimeters (mm) in depth, compared to 8.2mm in the Samsung Galaxy S25 Ultra it closely resembles.

By contrast, the leaker Fixed Focus Digital claims to have found that the Turbo Pro is a veritably conventional 8.3mm in thickness. It is also apparently not overly heavy at 208 grams (g, compared to 218g in the Galaxy S25 Ultra).

These apparent advantages (that even Oppo has failed to publicize ahead of the K13 Turbo series’ launch on July 21, 2025) are allegedly joined by a battery that will “exceed expectations” in the Pro variant.

The RedMagic Astra: an actively-cooled tablet now available on Amazon.

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Deirdre O Donnell – Senior Tech Writer – 8535 articles published on Notebookcheck since 2018

I became a professional writer and editor shortly after graduation. My degrees are in biomedical sciences; however, they led to some experience in the biotech area, which convinced me of its potential to revolutionize our health, environment and lives in general. This developed into an all-consuming interest in more aspects of tech over time: I can never write enough on the latest electronics, gadgets and innovations. My other interests include imaging, astronomy, and streaming all the things. Oh, and coffee.