Texting and email both deliver written messages, but they target very different moments. SMS goes straight to the phone in seconds and is opened almost immediately, while email is built for longer, designed content that can be browsed at the recipient’s pace.
Choose by intent: use SMS for time-sensitive, short, transactional alerts and email for content-rich, conversion-driven campaigns. The two channels complement each other — they’re not competitors.
Side-by-side comparison
| Aspect | SMS / Texting | |
|---|---|---|
| Length | 160 characters per segment | No practical limit, rich HTML allowed |
| Average open rate | Around 90%, mostly within 3 minutes | 20–30%, often within 24 hours |
| Cost per message | A few cents | Fractions of a cent at scale |
| Best for | Alerts, OTPs, reminders, flash offers | Newsletters, content, nurturing, design |
| Multimedia | Limited (MMS, links) | Full HTML, images, video, attachments |
| Compliance | Strict opt-in, hours of sending | Opt-in, unsubscribe link required |
| Tracking | Delivery + click on shortened links | Open, click, bounce, unsubscribe, conversions |
When SMS wins
- Order confirmations and shipment alerts.
- Two-factor codes and security notifications.
- Last-minute reminders (appointment in 1 hour).
- Time-limited promotions where seconds matter.
SMS is intrusive by design: overuse it and you trigger opt-outs faster than with email. Cap at 2–4 marketing SMS per month per contact and always offer a clear STOP keyword.
When email wins
- Newsletters, product launches, long-form content.
- Onboarding sequences and lifecycle automation.
- Branded design, images and detailed CTAs.
- B2B communication where context matters.
Combine both channels in Mailpro
Mailpro lets you mix campaigns: send a newsletter and follow up with a short SMS to the openers. Discover how to send SMS with Mailpro or read about our email-to-SMS gateway.