https://www.theverge.com/2018/9/24/17896564/apple-iphone-xs-max-sales-estimates-analyst-report-outselling

Apple analyst Ming-Chi Kuo of TF International Securities has provided insight on Apple’s lineup of new products in a research note obtained by MacRumors. The note discusses the reception of the iPhone XS, iPhone XS Max, and Apple Watch Series 4.

Kuo’s report says that demand for the iPhone XS Max is higher than expected, and is about three to four times higher than demand for the iPhone XS. Gold and space grey are far more popular than silver when it comes to color options, and the 256GB version is the most popular. The note also says that the 512GB version could face a shortage because of reliance on Samsung as a supplier: