Pixel 4 could have two active SIMs for the new update. However, if both are used for calls or text, the other line will not be able to receive calls or text. This is similar to howand other Android phones work.
Using a dual SIM card is useful for those who travel frequently or have more than one number (such as a personal and work number). If this rumor arises – and keep in mind that this is just a rumor; Google did not respond to the comment – updated SIM capabilities would provide even greater flexibility for Pixel users.
For more information, please read why you should consider having a dual SIM . .