A photo of TCL’s tri-fold smartphone concept
Spotted in the wild in the hands of Huawei CEO, it seems like the Tri-Fold smartphone may just end up becoming a reality. Whether we need one is an entirely separate question (has that truly ever stopped tech companies?), so let’s ask ourselves something more relevant – How would you design a protective case for this new breed of smartphone?
A brief recap on the phone itself – photos of Richard Yu, CEO of Huawei, emerged last week holding a strange smartphone. It was a foldable, but unlike conventional flip or fold phones, this one had three panels with two hinges (sort of like this wild Samsung concept from 2020). Dubbed the tri-fold, this phone managed to get quite a bit of coverage on the internet, with people speculating tech specs, launch dates, and even one Twitter (or X) user wagering a price of $4000 USD. Nevertheless, when I saw the phone, I had three distinct thoughts in this exact order.
A. Wow, that’s an impressively thin tri-fold phone.
B. Is there really a market for this?
C. There’s absolutely no way you can make a case or screen guard for this phone.
I’ve made an illustration below of what the phone would look like if you went about designing a case for it (and why the case wouldn’t work), and I’ve also taken the liberty of designing what I believe is the only possible case style you can make for such a phone.
With regular foldables, the obvious way to make a case is to design a two-part case that protects the bumper around the front, and the entire back. Regular smartphones have two displays, one front-facing one, and another folding one, and it’s important to remember that the case should never obstruct the display. With Huawei’s Tri-Fold, however, you’ve actually got one single display zigzagging from the front to the inside. The above photo shows exactly what I mean. Designing any sort of case (with as many parts as possible) complicates the phone’s usage rather than protecting it. Think of the obvious 3-part case that snaps onto the back of all three panels and you’re faced with a massive problem – shutting the case would mean having it sandwiched within the phone’s panels and probably press/damage the display… sort of like shutting your laptop screen with a charging cable, USB drive, or even your keys kept on the keyboard.
An impossible case design shown in red, and the only plausible case design shown in green. The blue line shows the outward folding screen.
The only real way you can make ANY sort of protective case for the Tri-Fold is to design one single part that fits only on the rear of the back panel. This means the first two panels don’t get any form of protection (because they can’t, really), leaving more than 60% of your phone vulnerable to drops, etc. The most you can really do is add a bumper protector to the front that only covers the edges, but that still leaves the middle panel (the most crucial panel in my opinion) to damage. It’s safe to say that screen protectors are out of the question too – something that still wasn’t a problem for regular two-fold smartphones, because you can still shield the front-facing screen with a plastic or tempered glass protector.
Huawei CEO Richard Yu pictured holding a prototype of Huawei’s alleged tri-fold smartphone
That basically puts a lot of pressure on Huawei to make sure this phone is rock-solid… which is already a pretty big challenge considering they also need to make the phone slim, and ensure that those hinges work with 100% reliability. The hinges are a separate issue too, given that so much depends on both hinges working flawlessly every time to ensure you have a flat screen when you open your phone completely. The one standout positive with this phone is that at least it gives you a more palatable aspect ratio when opened completely, as compared to the current foldables that give you a weird square display that doesn’t really work well with landscape OR portrait media. For now, details on the Huawei Tri-Fold are incredibly scant, although PhoneArena does a pretty good job speculating and gathering as many rumors to paint a full picture of this absolutely wild device. Whether it’s a good idea to make a dual-hinge tri-fold phone with an alleged $4000 price tag is still an entirely different debate.
