Green texts do not necessarily say "delivered."
- In iMessage on an iPhone, green texts are typically sent to non-iPhone users or when the sender's iMessage is turned off. The green color simply indicates that the message was sent as a text message instead of an iMessage.
- On WhatsApp, a single green checkmark next to a message means it has been sent, but not necessarily delivered. Two green checkmarks mean that the message has been delivered to the recipient's device.
It's important to note that delivery is dependent on many factors, including network connectivity and the recipient's phone being turned on and in range of a cellular or Wi-Fi signal. So just because a message was sent or delivered does not necessarily mean that the recipient has seen or read it.