The iPad mini with Retina display has officially gone on sale today in Apple’s online store. The tablet starts at $399 for the base model and features the same resolution and specs as the iPad Air, for $100 less.

When Apple announced its new lineup of iPads, the iPad mini with Retina display was given the unspecific release date of “Later in November.” Prior to the event, it was rumored that Apple would not launch the iPad mini with Retina display due to constrained supplies of its screen. The delayed launch suggests that supplies are indeed low, so if you’re in the market for a Retina display-equipped iPad mini, it would be best to act quickly.

The iPad mini with Retina display is available for purchase in the US, Canada, and Mexico; the UK, Germany, Italy, Spain, France, Australia, New Zealand, Hong Kong, China, and Japan.

[via Apple Online Store]