Glossary

What is Green bubble?

A green bubble means the message was delivered as SMS or MMS through a mobile carrier rather than as an iMessage.

Green-bubble messages lose iMessage features: no read receipts, no typing indicators, compressed media, and no reactions that render natively on older devices. They also pass through carrier spam filtering, which silently drops a portion of business traffic.

In outbound sales, green bubbles from unrecognized numbers carry the visual signature of bulk marketing, which is why reply rates on SMS campaigns have fallen as consumers learned the pattern.