Samsung and Google are working together to support RCS format.
Samsung announced on September 2018 that it’s working with Google to make their respective texting apps fully compatible with each other. In other words, Samsung Messages users will be able to use all of the advanced RCS features when chatting with Google’s Android Messages users. These include group chats; the ability to send images, stickers, and files; location sharing; read receipts; typing indicators; and video calls. With RCS, all of these features are part of the basic messaging service that’s tied to your phone number, reducing the need to use WhatsApp, Facebook Messenger, or other similar services.
Rich communication services support is gradually rolling out across many carriers and devices. But since RCS requires a software update it's unlikely to see many this support in old handsets.
Here's the list of devices that will get RCS support:
