A man leaving a Brooklyn subway station yesterday was stabbed in the chest as the mugger stole his iPhone, authorities said.

The 40-year-old victim was at the 18th Avenue F-train station in Borough Park at 1:45 a.m. when the thug attacked.

The victim, whose name was withheld, was rushed to Lutheran Hospital and listed in stable condition.

Thefts of Apple products are up 40 percent this year over 2011.