If you thought the OnePlus Open was good, wait until you hear about its successor...

For true fans of emerging technology, there's nothing quite like the best foldable phones. Born as the fruit of decades of sci-fi dreaming, these handsets are as futuristic as it gets, opening out to reveal a large internal panel.

There's a lot of different models worth your time and money. Classics like the Samsung Galaxy Z Fold 6 still offer a decent platform. Personally, I've been really loving the Honor Magic V3, complete with its slim footprint and improved durability.

We've long been fans of the original OnePlus Open handset. That's a killer device – as is the new Apex Edition which has left T3's Tech Editor feeling very happy. Now, its successor sounds likely to be even better.

That's because a host of fresh rumours about the spec sheet of the new model – colloquially dubbed the OnePlus Open 2 – have emerged. Those include a rather impressive sounding triple 50MP rear camera array, tuned by Hasselblad. Those rumours come courtesy of Digital Chat Station – a source with a good reputation for early leaks of Android phone specs.

While it doesn't sound like a leaps and bounds change from the first-gen's 48-, 64-, and 48MP line-up, it could be more significant than it first seems. Those 50MP sensors might offer a larger sensor size, which in turn would allow for a greater image quality.

It's not just the camera which is set for a boost, either. We've already heard about the handset receiving a larger battery, and that's mentioned again here. The current leak is slightly smaller than previous estimations at 5,700mAh, but that's still a darn sight more than the first-gen handset.

Elsewhere, we'd expect to see the new Snapdragon 8 Elite processor make its way into these handsets, while there are also rumours of a MagSafe-like charging system. The highlight, though, remains its reported slim design, which could even eclipse the current slimmest device on the market – the Magic V3.

With no definitive release date rumoured for this one, we'll have to keep our ears to the ground for more details as they emerge.