The domestic version of the iPhone XS is a single card, and the other regional versions are a single physical SIM eSIM.
The iPhone XS is a mobile phone released by Apple on September 13, 2018. The national version of iPhone XS does not support dual-SIM dual-standby function, while the Hong Kong and Macao version, the US version and the Japanese version all support physical single SIM card and eSIM virtual SIM card function, but there are no wireless carriers supporting eSIM in Hong Kong, Macao and Japan. Apple only lists countries including Austria, Canada, Germany, the United Kingdom, and the United States that support eSIM services.
The iPhone XS is a single-card single-standby phone, and does not support dual-card dual-standby. This means it has only one card slot and cannot use two SIM cards at the same time. While the iPhone XS in some regions supports eSIM technology, the Chinese version of the iPhone XS does not support eSIM. Therefore, when used in China, the BOC iPhone XS can only use one SIM card.
iPhone XS does not support dual SIM, while iPhone XS Max and iPhone XR support dual SIM. So far, users who want to use dual SIM can only buy iPhone XS Max.