How to Switch Your Phone From SMS/MMS to RCS Chat

Yes, you can switch from SMS/MMS to RCS on most phones, but the process depends on your phone type and carrier

RCS (Rich Communication Services) is a newer messaging standard that works like SMS but adds read receipts, typing indicators, group chat features, and the ability to send higher-quality photos and videos. If your phone supports it and your carrier offers it, you can turn RCS on in your default messaging app's settings. The switch is not permanent — you can turn RCS off and go back to SMS/MMS at any time.

The catch is that RCS only works when both people have it enabled. If you send a message to someone still using SMS, it automatically falls back to SMS for that conversation. You will not lose the ability to text anyone; the app straightforward uses whichever standard both phones support.

Key Takeaways

RCS turns on in your messaging app settings under "Chat features" or "Advanced" — the exact location varies by phone and app.
Your carrier must support RCS for it to work; most major carriers in the US now offer it, but coverage is not universal.
RCS only works between two people who both have it enabled; messages fall back to SMS if the other person does not have RCS.
You can turn RCS off at any time and return to SMS/MMS without losing any messages or contacts.

How to enable RCS on Android phones

On Android, RCS is usually managed through Google Messages, Samsung Messages, or your carrier's default messaging app. Open your messaging app, tap the three-line menu (hamburger icon) in the top left or right corner, and look for "Settings." Inside Settings, find "Chat features," "Advanced," or "RCS" — the exact name depends on which app you use.

Tap the toggle or checkbox next to "Enable chat features" or "Turn on RCS." Your phone will connect to your carrier's RCS network, which can take a few seconds to a few minutes. Once enabled, you will see a small "Chat" label in conversations with other RCS users. If the toggle is grayed out or missing, your carrier does not yet support RCS in your area.

How to enable RCS on iPhones

iPhones running iOS 16 or later can use RCS, but only through the Messages app. Open Messages, tap the three dots in the top right corner, and select "Settings." Scroll down and look for "Send as SMS" or "RCS." If you see an option to turn off "Send as SMS," RCS is already active — Apple calls this feature "Advanced Messaging."

If you do not see this option, your carrier does not support RCS yet, or your iPhone is running an older version of iOS. Check that you are on iOS 16 or later by going to Settings > General > Software Update. If your carrier does support RCS and you are on the right iOS version but the option still does not appear, restart your phone and check again.

What to do if RCS is not available on your carrier

RCS support varies by carrier and region. In the United States, AT&T, Verizon, T-Mobile, and most regional carriers now support RCS, but smaller carriers and some rural areas may not have it yet. To check whether your carrier supports RCS, contact them directly or look for a "Chat features" option in your messaging app — if it exists, your carrier supports it.

If your carrier does not support RCS, you can still use SMS and MMS normally. Some people choose to use third-party messaging apps like WhatsApp, Telegram, or Signal instead, which offer similar features to RCS (read receipts, typing indicators, better media quality) and work across all carriers and phone types. These apps require both people to read and use the same app, unlike RCS which works within the default messaging app.

The difference between RCS and SMS/MMS in practice

SMS (Short Message Service) is the oldest standard and handles text only, with a 160-character limit per message. MMS (Multimedia Messaging Service) adds the ability to send photos, videos, and audio, but compresses them heavily and can be slow. RCS keeps the simplicity of SMS but adds modern features: read receipts show when someone has read your message, typing indicators show when they are typing back, and you can send full-resolution photos and videos.

RCS also improves group chats. With SMS/MMS, group messages can be unreliable and slow; with RCS, they work more like messaging apps. You can see who is typing, who has read the message, and add or remove people from the group more easily. However, if even one person in the group does not have RCS, the entire conversation drops back to SMS/MMS.

Turning RCS off if you change your mind

If you enable RCS and decide you prefer SMS/MMS, you can turn it off the same way you turned it on. Open your messaging app, go to Settings, find the RCS or Chat features toggle, and switch it off. Your phone will when ready stop using RCS and return to SMS/MMS for all conversations. All your existing messages stay in your app — turning RCS off does not delete anything.

Some people turn RCS off temporarily if they are having trouble with a specific conversation or if they switch to a phone that does not support RCS. There is no penalty for switching back and forth; you can enable it again whenever you want.

Troubleshooting RCS that will not turn on

If RCS is available on your carrier but will not set up, try these steps in order: first, restart your phone completely. Second, check that you have a strong data connection (RCS uses data, not just cellular signal). Third, open your messaging app and look for a notification or banner asking you to confirm RCS set up — sometimes the system requires you to tap a button to finish setup.

If none of that works, sign out of your Google account (on Android) or iCloud account (on iPhone), wait 30 seconds, and sign back in. If RCS still will not turn on after that, contact your carrier's customer service and tell them you are trying to enable RCS chat features. They can check whether RCS is active on your account and reset it if needed.

Frequently Asked Questions

Will my old SMS/MMS messages disappear if I switch to RCS?

No. All your existing messages stay in your app whether you use SMS, MMS, or RCS. Switching between them does not delete anything. Your message history remains exactly as it was.

Can I use RCS with people who have older phones?

Yes, but only for that conversation. If you send an RCS message to someone without RCS, it automatically converts to SMS. You will lose read receipts and typing indicators for that person, but the message still arrives.

Does RCS cost extra money?

No. RCS uses your existing data plan, just like iMessage or WhatsApp. If you have unlimited data, RCS costs nothing. If you have a limited data plan, RCS messages count against your data allowance, but the amount is tiny — a typical text message uses less than 1 kilobyte of data.

What if my carrier says they support RCS but I do not see the option?

Make sure your phone is fully updated (check Settings > System Update or Settings > General > Software Update), restart your phone, and wait a few minutes for the system to connect to your carrier's RCS network. If it still does not appear, contact your carrier — sometimes RCS is turned off on your account and needs to be activated by them.

Can I use RCS on a work phone or business line?

It depends on your carrier and your company's policies. Most carriers support RCS on all lines, but some business plans have it disabled. Check with your company's IT department or your carrier to see whether RCS is available on your specific account.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.