NEW YORK – Apple is set to unveil its latest iPhone lineup on Tuesday at its most closely watched event of the year.

The stakes are high for the company. Even as it works to diversify its revenue by pushing into premium subscription services, the iPhone remains Apple’s single biggest moneymaker. And it’s struggling.

iPhone sales have declined in recent quarters as the company grapples with consumers waiting longer to upgrade their smartphones and a trade war denting demand in China, once one of Apple’s most promising markets.

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If the rumors ahead of this year’s event are true, Apple is gearing up to announce incremental changes to the iPhone, which may generate press but not change the concerning trend lines for the company.

As of now, expect better cameras and some clunky new names (iPhone 11 Pro?), but not much in the way of breakthrough new features.