Apple to reveal new iPhone 15 in today's event. Here's where and when you can watch it live.

Apple is unveiling its latest iPhone lineup today at the company's annual launch in Cupertino, California, where the tech giant is also expected to introduce new Apple Watches, Airpods and other gear. 

The event is an important showcase for Apple, which wants to spur consumers to upgrade their older iPhones in favor of its latest devices. This year is especially important given that the company is struggling to break out of a slump that's led to a sales drop in three consecutive quarters. 

Here's what to know about today's event.