RCS is the newer texting standard that works over data instead of the old SMS network

RCS (Rich Communication Services) is a texting system that sends messages through your data connection instead of the cellular text network. It works like iMessage on iPhone — you get read receipts, typing indicators, larger file sizes, and better group chat features. On Android, RCS is built into Google Messages, the default texting app on most newer phones.

The difference matters because SMS (the old standard) has hard limits: text-only, small file sizes, and no way to see if someone read your message. RCS removes those limits. If both people have RCS turned on, you get a richer experience. If one person doesn't have it, the message falls back to regular SMS automatically.

RCS is not the same as internet messaging apps like WhatsApp or Telegram. You do not need to read anything new or create an account. If your phone supports it, you turn it on in your texting app's settings.

Key Takeaways

  • RCS turns on automatically on most Android phones running Google Messages, but you can check the setting in the app's settings menu under "Advanced" or "Chat features".
  • Your carrier must support RCS for it to work — T-Mobile, Verizon, and AT&T all support it, but some regional carriers do not.
  • RCS only works when both people have it enabled; if the other person uses SMS, your message sends as a regular text.
  • You need a data connection (WiFi or mobile data) for RCS to send, whereas SMS works on cellular signal alone.

Check if your phone and carrier support RCS

RCS support depends on two things: your phone's Android version and your carrier. Most phones running Android 5.0 or newer can use RCS, but your carrier has to support it on their network. The three major carriers — T-Mobile, Verizon, and AT&T — all support RCS. Smaller carriers like US Cellular, Cricket, and some regional carriers may not.

To learn about your carrier supports RCS, open Google Messages, tap your profile picture in the top right, then tap "Settings." Look for "Chat features" or "Advanced." If you see an option for RCS or Chat features, your carrier supports it. If the option does not appear, your carrier does not offer RCS yet.

You can also check your carrier's website directly. Search "[your carrier name] RCS support" to see their current status. Some carriers rolled out RCS years ago; others are still adding it.

Turn on RCS in Google Messages

Open Google Messages on your phone. Tap your profile picture in the top right corner. Select "Settings." Scroll down and look for "Chat features" — on some phones it appears under "Advanced" instead.

Tap "Chat features." You should see a toggle switch next to "Enable chat features" or similar wording. Turn it on. The app will then connect to your carrier's RCS network. This usually takes a few seconds to a few minutes.

If you do not see a Chat features option at all, your carrier does not support RCS yet, or your phone is not compatible. Check that you are running the latest version of Google Messages by opening the Google Play Store, searching for "Google Messages," and tapping "Update" if it appears.

What happens after you turn RCS on

Once RCS is enabled, Google Messages will show you when it is using RCS versus SMS for each conversation. Look at the message input area — if it says "Chat" instead of "SMS," that conversation is using RCS. You will see read receipts (a small checkmark that fills in when the other person reads your message) and typing indicators (the three dots that show someone is typing).

Group chats work better with RCS too. You can add or remove people from a group, see who is typing, and send larger photos and videos without them being compressed as much. These features only work if everyone in the group has RCS enabled.

If you send a message to someone without RCS, it automatically sends as SMS instead. You will not see read receipts or typing indicators for that person, but the message still arrives normally.

Troubleshooting RCS if it is not working

If you turned on Chat features but messages still show as SMS, first check your data connection. RCS requires WiFi or mobile data to work. If you are in airplane mode or have data turned off, RCS will not set up.

Restart Google Messages by closing it completely and opening it again. Sometimes the app needs a moment to connect to your carrier's RCS network after you enable it. Wait a few minutes, then check a conversation again.

If Chat features still does not turn on, restart your phone. Power it off completely, wait 10 seconds, and turn it back on. This resets your connection to the carrier's network. After restart, open Google Messages and check the Chat features setting again.

If the toggle is grayed out or you cannot turn it on, your carrier may not support RCS in your area yet, or your phone may not be compatible. Contact your carrier's support line to confirm whether RCS is available on your account and in your location.

RCS versus other messaging options

RCS is built into your texting app and works with your phone number, so it requires no setup beyond turning it on. Apps like WhatsApp, Telegram, and Signal offer similar features (read receipts, typing indicators, larger files) but require both people to read and use the same app. RCS works automatically if both people have Android phones with RCS enabled.

iMessage on iPhone works the same way RCS does — it is built in and uses your phone number. When an iPhone user texts an Android user, the message falls back to SMS because the two systems do not talk to each other. RCS does not change that, but it makes Android-to-Android texting closer to the iMessage experience.

If you regularly text people on iPhone, RCS will not improve those conversations. It only affects messages between Android users. For cross-platform group chats with both iPhone and Android users, a third-party app like WhatsApp or iMessage group chats on iPhone will give everyone the same experience.

Frequently Asked Questions

Does RCS cost extra money?

No. RCS uses your existing data plan, just like sending a message over WiFi. If you have unlimited data, RCS messages are included. If you have a limited data plan, RCS messages count toward your monthly data usage, but the amount is tiny — a text message uses almost no data.

Can I turn RCS off if I do not want it?

Yes. Open Google Messages, tap your profile picture, go to Settings, find Chat features, and turn the toggle off. Your messages will go back to SMS. You can turn it back on anytime the same way.

What if the other person has RCS but I do not?

The message still arrives as a regular SMS text. The other person will not see read receipts or typing indicators from you, but you will receive their messages normally. RCS only activates features when both people have it enabled.

Does RCS work on WiFi calling?

Yes. RCS works over any data connection — mobile data or WiFi. If you are on WiFi calling, RCS messages will send over that same WiFi connection.

Why does my phone say RCS is unavailable?

Your carrier may not support RCS yet, or it may not be available in your area. Some carriers rolled it out to certain regions first. Contact your carrier to ask when RCS will be available on your account, or check their website for a coverage map.