The blue dot that appears next to contacts tells you in the simplest terms possible that the person you are communicating with uses a phone that is compatible with RCS. If both of your phones use an RCS network infrastructure, the other person’s contact information will have a blue dot next to it if you are in contact with them.
The messaging app will look through your contact list to determine which of your contacts have phones that are compatible with RCS, and it will designate those contacts with a blue dot.
This indicates that you are able to send and receive messages with that person while you are in chat mode. In addition, it is possible to send and receive big image files while maintaining their original resolution. It ought to be possible for you to send uncompressed video files to contacts marked with a blue dot, and your maximum character count ought to be raised.
If you have a Samsung phone or any other Android device and you see a blue dot next to a contact’s name, this indicates that you can do more than just send and receive a text message using the conventional format for text messages. For instance, if the other person also has a Samsung phone, it’s possible that profile sharing is enabled, and the dot is displaying online updates to both of you. This is the case if the dot is showing online updates. You will be able to monitor when the other person reads your texts as well as when they type.
