The iPhone XS is the best iPhone ever, but there are good reasons to hold off on buying one. (Washington Post staff illustration)

Hello there, savvy iPhone shopper. Ready for an upgrade? There are a few things you should know before emptying your wallet at the Apple store.

It’s an especially confusing moment: Apple will sell no fewer than eight iPhone models in 2018. But they haven’t all gone on sale yet — and there are reasons to hold off on the two most-expensive ones that hit stores on Friday: the $1,000 iPhone XS and $1,100 XS Max.

Wait, isn’t the new iPhone the best ever? Yes — Apple would be in serious trouble if it wasn’t. And I don’t have to tell you what makes an iPhone great: simple design, a great camera, software that mostly just works and free Apple support.

But the changes in the XS are incremental. Compared to last year’s iPhone X, it’s a bit faster, has a bit better camera and has a slightly longer-lasting battery. If you can’t live without those improvements, then stop reading and go buy an XS.

There’s one other category of people who should buy now: those who want all the iPhone Apple will sell. The one actually big change in this year’s iPhone crop is the XS Max. It’s the X-Treme Big Gulp of iPhones: Measuring 6.5 inches, its screen is larger than a Snickers, a Subway sandwich or the heel on a 6-inch stiletto. The XS Max is the closest iPhone yet to carrying a computer in your pocket, and the version with 512 GB of storage costs as much as one: $1,450.

[The explosive problem with recycling iPads, iPhones and other gadgets: They literally catch fire.]

If these phones sound too big or too expensive, then good news: You’ve got options. Here are five reasons to hold off before buying the iPhone XS and what to get instead.

The iPhone XR is arriving in stores Oct. 26. (Stephen Lam/Reuters) (STEPHEN LAM/Reuters)

Reason 1: The iPhone XR…