Google Tests Convenient SIM Card Switching in Phone App

Google developers are working to improve functionality for dual-SIM smartphone users. Currently, users can either set a default SIM for calls or manually select a line via a pop-up window before dialing. The new option will allow users to choose an active SIM through a compact dropdown menu directly within the Phone app interface.

The change will only affect SIM selection for calls—default settings for mobile data and SMS will remain unchanged. After a call made using a non-primary SIM, the app will automatically revert to the default line. This is particularly useful for users who rely on a second SIM for specific calls, such as work or international communication.

The feature has been spotted in the beta version of the Phone app (224.0.921818792) and is not yet available to the general public. Similar functionality is already implemented in some Android skins and iOS, so this update will address a long-standing gap for users of stock Android. The enhancement is expected to be especially valuable in markets dominated by carrier-locked devices, where dual-SIM solutions are growing in popularity.