Apple's longstanding pattern of annual iPhone launches, with new models typically announced in September and shipped shortly after, underpins the near-certain market-implied odds for an iPhone 18 release sometime in 2026. Traders weigh this consistent cadence against Apple's history of managing supply chains effectively, even amid component constraints, while noting the company's growing lineup of six devices this cycle. Recent supplier comments highlight a planned split schedule that prioritizes Pro models and a foldable variant for fall 2026, with the base iPhone 18 shifting later, yet the overall probability remains elevated because historical precedents show rare full cancellations. Realistic risks include prolonged memory or silicon shortages that could push timelines into early 2027, unforeseen regulatory hurdles on hardware features, or major production delays, though these have not previously derailed an entire generation.