Maybe Apple's foldable would be, but my Honor Magic V3 Global actually weighs 1 gram less than an iPhone 16PM and it is only just over 1mm thicker than the 16PM when it is folded.
It's good to know that the ones I've tried have plastic film on the screen, because that felt awful to use. That still leaves the hinges and crease still bothering me, but I guess I'm just arguing. I'm not in the target market for a folding phone. I hated the Motorola flip phone I had back in the day, the one that everyone seemed to love. I paid out my contract early just so I could replace it!