Sony A7S IV rumors are heating up again — and this time there is a major new clue.

Sony has registered a new camera in China under the model code WW261362, with reports pointing to Wi-Fi six support and Sony Japan as the applicant. This has sparked fresh speculation that the mysterious camera could finally be the long-awaited Sony A7S IV.

But is it really the A7S IV?

In this video, we break down the latest Sony A7S IV rumors and the information currently circulating in October twenty twenty-six, including the possible connection to Sony’s FX5, the rumored sixteen-megapixel stacked full-frame sensor, possible nine point four four-million-dot EVF, newer BIONZ XR processing, autofocus improvements, and what Sony could be planning for its next A7S camera.

We also look at why the A7S IV could be positioned differently from the FX5, what features might separate the two cameras, and why Sony’s latest camera registration could be such an important clue.

Important: Sony has NOT officially confirmed the A7S IV, its specifications, price, or launch date. The A7S IV name and specifications discussed in this video are based on current reports, rumors, and industry speculation.

If Sony really is preparing the A7S IV, the biggest question is whether it can deliver a major enough upgrade after more than six years of waiting.

Watch until the end to see what the latest evidence actually tells us.

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