This is interesting, though not altogether unexpected.
iPhone XS pre-orders are "lower-than-expected," as customers opt for the iPhone XS Max or wait for the iPhone XR.
Forecasts for iPhone XS orders, it is believed will account for only 10 to 15 percent of shipments of the new 2018 iPhones, down from 15 to 20 percent.
Forecasts for iPhone XR orders, estimate that the model will account for 55 to 60 percent of shipments of the new 2018 iPhones, up from 50 to 55 percent previously.