RCS (Rich Communication Services) is a messaging protocol that provides an upgraded, rich messaging experience compared to SMS or MMS. RCS messaging works on all Android phones and offers features like typing indicators, inline replies, group chats, video calls, and photo and video sharing. Some of the key features of RCS messaging include:

• Read receipts: Show when someone has read your message.
• High-quality media: You can share files and high-resolution photos.
• Real-time typing indicators: Show when someone is typing.
• End-to-end encryption: Provides a more secure messaging experience.

When you use RCS chats, your messages are sent with the Rich Communication Services (RCS) protocol over Wi-Fi and mobile data. RCS chats will be turned on only when all the participants in a conversation have RCS. RCS chats are provided by Google or your mobile carrier. If your carrier and device aren’t automatically set up for RCS chats, you may be offered RCS chats. You can turn on RCS chats in the Messages app on your Android device if your default messaging app doesnt offer RCS chats. RCS messages youve sent are darker blue than SMS or MMS messages.

In summary, RCS messaging is a messaging protocol that provides a more dynamic and secure conversation with someone than SMS or MMS. It offers features like read receipts, high-quality media, real-time typing indicators, and end-to-end encryption. RCS messaging works on all Android phones and can be turned on in the Messages app if your carrier and device support it.