SMS and email are both good ways to send a wedding invitation, but they win at different things: text messages get opened faster and more often, while email gives you room for a richer card and longer details. Texts are typically opened within minutes and read at very high rates, which is why reminders and last minute nudges almost always perform better by text. Email is opened less reliably and can slip into a promotions tab, but it handles a full designed invitation, a schedule, and travel notes without feeling cramped. The best answer for most couples is not to pick one, it is to use both: send the invitation by whichever channel a guest prefers, then chase the stragglers by text. This piece breaks down where each one actually helps.
Which one gets opened more?
Text wins on open rate and speed by a wide margin. Most people read a text within a few minutes of receiving it, and almost every text gets opened. Email open rates are far lower and far slower, and a share of your invitations will land in a tab the guest rarely checks.
That gap matters most for time sensitive messages. A reminder to a guest who has not replied, a change of details, or a final headcount request all belong in a text, because you need eyes on it today, not next week.
Where does email still win?
Email gives you space. A full invitation with a large card image, a schedule for a multi day event, hotel blocks, and directions reads comfortably in an email and feels cramped in a text. If your wedding has a lot of logistics, email is a natural home for the detailed version.
Email also creates a written record guests can search later. When someone wants to double check the start time the night before, an email is easy to find in a way a text thread from weeks ago is not.
Does the channel change how many people actually reply?
It can. Faster opens tend to mean faster replies, so a text invitation often fills your RSVP list sooner. But the bigger driver of reply rate is not the channel, it is the friction. A one tap RSVP link that opens a clean page gets more replies than asking someone to text back a yes into a crowded group thread or reply to an email with their meal choice typed out.
Whatever channel you choose, the reply path should take a guest one tap and a few seconds. That single design choice moves your response rate more than SMS versus email ever will.
How do you use both without doubling the work?
Send the invitation by the guest's preferred channel, then reserve text for reminders. In practice that looks like emailing the full card to everyone with an email address, texting the guests you only have a number for, and sending a short text nudge a few days before your deadline to anyone still pending.
Memorra makes this one workflow instead of two. You build your guest list once, then send by email or text with a personal RSVP link, and schedule reminders to the guests who have not responded yet. Every reply lands in the same place and updates your headcount, so you are never reconciling two systems. If you want more replies with less chasing, that is the setup.