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Inside A Folding Phone: The Hinge That Helped Oppo “Delete The Crease”

“Will I hurt my folding phone if I flip it open as hard as I can?”

“Why do different foldables have different-looking creases?”

“How are folding phones even possible?”

The answer to all these questions comes down, mostly, to the same ancient technology that makes your laptops, your cabinets … even your front door work: the good old-fashioned hinge. Recently, Oppo gave me the opportunity to learn everything I could learn about the hinges inside its Find N2 and Find N2 Flip folding phones – and today on Into The Fold, I’m taking an up-close look at them, to see what they can teach us about what it takes to fold a phone!



This is the thirteenth in a series of episodes exploring the many facets of life on a folding screen. From the best foldable phones of 2023 to the bleeding-edge world of folding-screen laptops, “Into The Fold” is MrMobile’s showcase for the most exciting movement in mobile technology since 2007!

This episode of “Into The Fold” was made possible by two Oppo Find N2 Flip review samples, one Find N2 review sample, and several engineering samples of production hinges provided by Oppo, which also allowed MrMobile to interview the engineers and product managers responsible for hardware design on the company’s folding phones.

MrMobile does not accept compensation from the manufacturers of the products he reviews in exchange for producing content. No payment was provided and no manufacturer or carrier was afforded a preview, editorial input or copy approval rights concerning this review.


1 Week With The Oppo Find N2 Flip! [Tom The Tech Chap]:

3 Days With The Samsung Galaxy Z Fold 2 [Booredatwork]:


“Lucky Day” by SPARKZ [Soundstripe]:

“Happy Thursday” by VAULTZ [Soundstripe]:

“Enough Said” by Dr. Delight [Soundstripe]:

“Roll the Tape” by Bright Seed [Soundstripe]:


00:00 It’s all about the hinge
01:30 Oil and …
2:18 … water (drop)
3:31 How to make a foldable “flex”
5:30 Flip it. Flip it hard.
6:40 The fewer parts, the better
8:44 The future is (still) foldable



This post may contain affiliate links, which afford Future plc a commission should you make a purchase. This does not affect MrMobile’s editorial content. See Future’s disclosure policy for more details:

Additional information concerning MrMobile’s ethics policy can be found here:

#foldingphone #foldables #flexibledisplay #hinge #oppofindn2 #oppofindn2flip #oppofind #intothefold #mrmobile #foldablephone

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