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The iPhone Duo, Apple's first foldable iPhone, has been out for a few days now — and the pre-orders are already delayed till 2027. While early customers have been enjoying a fresh new take on the iPhone almost a decade after the company truly refreshed its smartphone design, they're also facing several problems that one wouldn't expect to experience on a $1,999 phone. Among the biggest problems users are facing with the iPhone Duo are ongoing reports of inner display cracking , unoptimized apps, and increasing heat during certain tasks.

Apple isn't the first brand to deal with first-gen issues related to foldable phones. Brands like Samsung and Google also faced similar issues with their debut folding phones, but Apple always sets its customers' expectations higher.…