One of the chief complaints among early foldables has been how thick the hardware is, and it’s been a major focus for manufacturers. With new images of the upcoming Oppo Find N5 and OnePlus Open 2, new records are being teased, and it reveals a device that’s truly jaw-droppingly thin.
It’s been rumored for some time now that the OnePlus Open 2, based on the Oppo Find N5, will be incredibly thin. Recently, Pete Lau said it would be the “world’s thinnest” book-style foldable, and now we’re getting a first look at the hardware.
New images shared on Weibo show off the Oppo Find N5, the device that will serve as the base for the OnePlus Open 2. The images show off a foldable that’s half the thickness of an iPhone, and just the thickness of four stacked credit cards or two stacked quarters. That’s when unfolded, at least. Still, that puts the device at likely 3.5-4mm, which undercuts the Honor Magic V3’s 4.35mm profile when opened up.
Essentially, the device is just barely thicker than the USB-C port. In the post (translated), Oppo’s Zhou Yibao says that the charging port is currently the limit for how thin the device can be.
Thin is not the limit of Find N5, but the limit of the charging port
Top comment by Arthur
My Surface Duo 1st generation is 4.8mm unfolded. The height of the USB-C port is 2.6mm which leaves 1.2mm of space at the top and bottom of the port which is already next to nothing.
If this is 4mm, you're talking 0.7mm of space at the top and bottom of the USB-C port. This, based on the pictures looks to be a solid one piece frame that should make those very thin sections of what I presume is aluminum on either side of the USB-C port more rigid than the plastic Microsoft chose to use in the Surface Duo.
Either way, this is turning out to be an incredible looking device, possibly the best book style foldable yet on the market. Let's see how well it's received though if it still has the traditional shortcomings we've seen from book style foldables.
The comparisons are truly wild to see.




Despite that thin profile, it’s said that the device will have a battery around 20% larger than the Oppo Find N3, as we’ve heard in previous leaks.
The post also reiterates that the device will be launching in February, as rumored, and it seems likely that the OnePlus Open 2 will follow not too far behind. It seems likely that Mobile World Congress, set to take place during the first week of March, could serve as a launch for the device.
More on OnePlus:
- OnePlus Open 2 leak alleges refined design, early 2025 release
- Review: The OnePlus 13R is a Pixel 9 for everyone else
- OnePlus Open 2 reportedly adds wireless charging with unbelievably big battery
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