RCS and SMS are two different ways your phone sends text messages

RCS (Rich Communication Services) is a newer messaging system that works over data or WiFi and includes features like read receipts, typing indicators, and the ability to send higher-quality photos. SMS (Short Message Service) is the older standard that works over your phone's cellular network and has been around for decades. Your phone may have switched to RCS automatically, especially if you use Google Messages or another modern messaging app.

If you want to go back to SMS — because RCS isn't working reliably on your network, you're having delivery problems, or you simply prefer the older standard — the steps depend on which messaging app you're using and what kind of phone you have. The process usually takes less than a minute once you know where to look.

Key Takeaways

  • RCS is turned on by default in Google Messages and some other messaging apps, but you can disable it in the app settings.
  • On Android phones, open your messaging app, go to Settings, and look for an option labeled "Chat features," "Advanced," or "RCS" to turn it off.
  • On iPhones, you cannot use RCS at all — iMessage is Apple's equivalent, and SMS is the fallback when iMessage is unavailable.
  • Turning off RCS means your messages will send as standard SMS over your cellular network instead of over data.
  • If you switch back to SMS and later want RCS again, you can re-enable it using the same settings menu.

How to disable RCS in Google Messages on Android

Google Messages is the most common place where RCS gets turned on automatically. To turn it off, open the Google Messages app and tap the three-line menu icon (called a hamburger menu) in the top left corner. Then tap Settings.

Look for an option called Chat features, Advanced, or RCS — the exact name varies depending on your phone's Android version and when you last updated the app. Tap that option, and you should see a toggle or switch next to "Enable chat features" or "Enable RCS." Tap it to turn RCS off. Your messages will now send as SMS instead.

If you do not see a Chat features option, your phone may not support RCS, or it may already be disabled. You can confirm by checking whether the toggle appears at all — if it is not there, RCS is not active on your device.

How to disable RCS in Samsung Messages or other Android apps

If you use Samsung Messages (the default messaging app on Samsung phones) instead of Google Messages, the steps are slightly different. Open Samsung Messages and tap the three-dot menu icon in the top right corner, then select Settings.

Look for Advanced settings or Chat settings. Tap that option and find the toggle for Chat features or Enable RCS. Turn it off. Some older versions of Samsung Messages may not have this option at all, which means RCS is not enabled on that device.

Other messaging apps like Verizon Messages, AT&T Messages, or third-party apps may have their own RCS settings. The general rule is to look in Settings or Advanced settings and search for anything labeled "Chat," "RCS," or "Rich Communication." If you cannot find it, the app may not support RCS.

What happens when you switch back to SMS

Once you disable RCS, your phone will send all text messages as standard SMS. This means you lose features like read receipts (you will not see whether the other person has read your message), typing indicators (the three dots that show someone is typing), and the ability to send full-resolution photos — photos will be compressed to fit SMS limits.

SMS works over your cellular network, not over data or WiFi. If you have poor cellular signal but good WiFi, SMS may be less reliable than RCS was. However, SMS is more universally supported — it works on every phone, including older models and phones on different networks.

Messages will still arrive normally and you can still send and receive texts. The other person will not be notified that you switched from RCS to SMS — the change only affects your phone.

Why RCS might not be working and when to switch back to SMS

RCS relies on your phone having a data connection and your carrier supporting it. If RCS messages are not delivering, taking a long time to send, or failing entirely, switching to SMS often fixes the problem because SMS uses a completely different network path. Some carriers have had issues with RCS delivery, particularly on older Android phones or certain network configurations.

If you switch to SMS and later find that you want RCS again — perhaps because your carrier fixed their RCS service or you got a new phone — you can re-enable it by going back to the same Settings menu and turning the toggle back on. There is no penalty for switching back and forth.

iPhone users and why you cannot use RCS

If you have an iPhone, you cannot use RCS at all. Apple uses iMessage instead, which is Apple's proprietary messaging system. iMessage works similarly to RCS — it sends over data or WiFi and includes read receipts and typing indicators — but it only works between iPhones, iPads, and Macs.

When you text someone with an Android phone from an iPhone, the message automatically falls back to SMS. You cannot change this behavior or enable RCS on an iPhone. If you want to use RCS-like features with Android users, your only option is to use a third-party app like WhatsApp, Telegram, or Facebook Messenger.

Frequently Asked Questions

Will the other person know I switched from RCS to SMS?

No. The person you are texting will not receive any notification or see any indication that you switched. The message will arrive as a normal text message, and they will not be able to tell whether it came through RCS or SMS unless they ask you directly.

Can I disable RCS for just one contact?

No. RCS is an all-or-nothing setting in your messaging app. When you turn it off, it turns off for everyone. You cannot disable RCS for one person and keep it on for another. If you need to control messaging features per contact, you would need to use a different messaging app.

What if I disable RCS but messages still say "Chat" instead of "SMS"?

Close the messaging app completely and reopen it. Sometimes the app needs to refresh to recognize that RCS has been turned off. If it still shows "Chat" after reopening, go back to Settings and confirm the toggle is actually in the off position — it may not have saved the first time.

Does turning off RCS save battery or data?

RCS uses slightly more data than SMS because it sends over your data connection, but the difference is negligible for most users. Turning it off will not noticeably improve battery life or reduce your data usage. The main reason to switch is reliability or preference, not to save resources.

Can I re-enable RCS after I turn it off?

Yes. Go back to the same Settings menu where you disabled it and turn the toggle back on. It may take a few minutes for RCS to fully activate again. You can switch between RCS and SMS as many times as you want without any permanent changes to your phone or account.