RCS and MMS both send media, but RCS does it in far higher quality and adds interactivity. MMS is the older, lower-resolution, universally compatible option: it attaches an image or short video to a text but compresses quality, caps file size, and costs more than SMS. RCS sends full-resolution media, carousels, and tap-to-act buttons over the internet, with branding and analytics, and falls back to MMS/SMS when a device can’t receive it.
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RCS vs MMS, line by line.
Every dimension, both sides. Search to jump to what matters, hover a row to focus it.
High-resolution image & video
Compressed, size-limited
Up to about 100MB
Carrier-capped near 1MB
Buttons, carousels, replies
None
Verified sender
Anonymous
$0.0150 a rich message on SimplyRCS
$0.0150 on SimplyRCS, higher elsewhere
Delivery, reads, clicks
Delivery receipts only
RCS-capable devices (with fallback)
Nearly universal
Why the quality gap is so wide
MMS was designed in the era of feature phones and still behaves like it. Carriers cap the payload near 1MB and recompress whatever you send, so a product photo that looked sharp in your creative tool arrives soft and washed out on the handset. RCS moves media over the internet rather than the carrier’s multimedia gateway, which lifts the ceiling to around 100MB and leaves your file intact. That difference decides whether a menu, a garment, a room, or a receipt is legible enough to act on. It also unlocks formats MMS has no concept of: a swipeable carousel of products, a card with a title, a description and two buttons, or a suggested reply the customer taps instead of typing.
When MMS is still worth sending
MMS earns its place as the fallback layer, and on SimplyRCS that is exactly what it is. When a recipient’s device or carrier cannot take RCS, the same campaign delivers as MMS automatically, so a picture message still lands rather than being dropped or downgraded to a bare link. It is also the pragmatic choice for a one-off, low-stakes image send to a list you know skews toward older devices. What MMS cannot do at any price is tell the customer who sent it: there is no verified brand identity, no logo, and no checkmark, so recognition depends entirely on the recipient knowing the number.
For media-rich business messages, RCS is the clear upgrade. MMS persists as a fallback and for the rare device or carrier that can’t do RCS.
- Carriers cap MMS payloads near 1MB and recompress media; RCS supports files up to roughly 100MB with no forced recompression.
- SimplyRCS prices a rich RCS message and an MMS the same, $0.0150, so the higher-quality format is not the more expensive one.
- MMS carries no verified sender identity, so brand recognition depends entirely on the recipient knowing the number.
- SimplyRCS falls back from RCS to MMS or SMS per recipient, so a media message still lands on devices that cannot receive RCS.
RCS vs MMS, common questions.
RCS messaging vs MMS vs SMS: how do the three compare?
An RCS message vs SMS and MMS comes down to what the phone can show. SMS is 160 characters of plain text from a bare number, MMS adds one compressed image, and RCS adds a verified sender, high-resolution media, carousels and tappable buttons. SimplyRCS sends RCS where it is supported and falls back to MMS or SMS on every other handset.
How is RCS different from MMS?
MMS can attach an image but stays unbranded, low resolution, and static. RCS sends high-resolution media, carousels, and interactive buttons from a verified sender, and reports read receipts.
Should I use RCS or MMS to send images?
RCS where it is supported: the media is sharper, the sender is verified, and customers can act on buttons inside the message. SimplyRCS falls back to MMS automatically when a device does not support RCS.
Does RCS cost more than MMS?
No. On SimplyRCS a rich RCS message and an MMS are both $0.0150, and carrier fees are passed through at cost. Since RCS drives higher engagement, the effective cost per action is often lower.
What file sizes can each channel carry?
Carriers cap MMS payloads near 1MB and recompress what you send. RCS carries files up to roughly 100MB over the internet with no forced recompression, which is why photos and video arrive looking the way you made them.
Can MMS do buttons or carousels?
No. MMS has no interactive layer at all: an image and text, with no verified sender, no buttons, and no suggested replies. Those formats exist only in RCS.
Is MMS still worth keeping in the program?
Yes, as the fallback. When a handset or carrier cannot take RCS, SimplyRCS delivers the same campaign as MMS, so a picture message still lands rather than being dropped or reduced to a bare link.
Compare RCS with another channel.
Nine head-to-heads, including the one you are reading.