Two years ago, RCS brought modern messaging features between iPhones and Samsung phones. While not all carriers have rolled out this cross-platform compatibility yet, the GSMA has already announced RCS Universal Profile 4.1. This new version will eventually bring better profile privacy controls and faster messaging performance to Galaxy phones.
The GSMA announced RCS Universal Profile 4.1 to further refine RCS messaging across Android and iOS platforms. Once Apple and Google adopt this version, it will offer granular profile privacy controls, faster message delivery, lower battery consumption, and improved connection stability.
When it arrives on Galaxy phones, the update will allow you to natively share your name and profile picture in both individual and group chats. It will also include privacy toggles that let you choose exactly who can and cannot see your profile information.
Under the hood, RCS 4.1 switches to a connectionless gRPC transport protocol. This architecture enables faster delivery, lower battery drain, and enhanced reliability. Currently, RCS relies on MSRP (Message Session Relay Protocol), which maintains a persistent session connection established via SIP (Session Initiation Protocol) and requires significantly more overhead than gRPC.
Because Google Messages currently operates on RCS Universal Profile 2.4, it will likely take at least a year before we see these RCS 4.1 improvements roll out to users. Before RCS 4.1 is adopted, RCS 4.0 will be adopted, and it could bring native video calling between Android phones and iPhones.
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