Here is complete guide how to use dual sim on iPhone including iPhone XS and iPhone XS Max. Smartphones iPhone Xs, iPhone Xr and iPhone Xs Max, announced during the presentation of Apple on September 12, received support for two SIM-cards. The long-awaited feature first appeared in Apple smartphones.
Dual SIM Dual Standby technology allows you to simultaneously have two active connections and two mobile numbers. One of the SIM-cards can be used exclusively for local calls, and the other one - in roaming. At the same time, you can distinguish between work and personal life by controlling calls to both numbers in the settings of the iPhone Xs, iPhone XR and iPhone Xs Max.
It should be noted that along with Dual SIM, the new iPhone in 2018 is equipped with e-SIM support. Virtual SIM-card allows "on the fly" to switch from one mobile operator to another. True, this technology will not work in all countries. If in the US its support was announced by AT & T, Verizon, T-Mobile, Vodafone, Bell
How to use dual sim on iPhone:
iPhone XS and iPhone XS Max have Dual SIM Dual Standby technology. This technology allows you to simultaneously have two active connections and two mobile numbers.