Apple’s first headset to set stage for eventual AR glasses

Apple Inc.’s first crack at a headset is designed to be a pricey, niche precursor to a more ambitious augmented reality product that will take longer to develop, according to people with knowledge of the matter.

The initial device has confronted several development hurdles and the company has conservative sales expectations, illustrating how challenging it will be to bring this nascent consumer technology to the masses.

As a mostly virtual reality device, it will display an all-encompassing 3-D digital environment for gaming, watching video and communicating. AR functionality, the ability to overlay images and information over a view of the real world, will be more limited.