Apple is holding a mid-season event to reveal what is widely expected to be new products.
The company is expected to announce a 4-inch iPhone, likely called the iPhone SE, which lands with a new A9 processor, Touch ID, Apple Pay support, and an 8-megapixel rear-camera. A new 9.7-inch iPad is also expected, along with some incremental updates to Apple Watch.
Apple will stream the event live, featuring Apple chief executive Tim Cook and other senior executives.
If you are around to watch the hour-long keynote, viewers must watch the stream online with with Safari on iOS 7.0 or later, a Mac with Safari 6.0.5 or later on OS X 10.8.5 or later.
If you're watching through Apple TV, you can watch the stream on second or third-generation Apple TV with software 6.2 or later, or on any fourth-generation Apple TV.
Windows 10 users can also watch live through the Edge browser.
If you're away from your television, we'll have live coverage throughout the day..