Apple is facing engineering setbacks during the test production phase of its
first foldable iPhone, which could delay mass production and shipments by
months, according to sources familiar with the matter cited by Nikkei Asia.
Issues have proven more complex than expected during engineering verification
tests, with some suppliers notified of possible schedule shifts. The April–early
May period is seen as critical for resolving design and manufacturing
challenges. Apple has planned initial production of about 7–8 million units,
less than 10% of its new iPhone lineup volume, as part of its 2026 launch
strategy that prioritizes premium models. The foldable device is undergoing
Apple’s standard multi-stage production process, but unresolved engineering
issues—not component shortages—are said to be the main constraint.
