What does one gray check mark in a WhatsApp message mean?

What does one gray check mark in a WhatsApp message mean - briefly?

A single gray check mark on a WhatsApp message indicates that the message has been sent from your device but not yet delivered to the recipient's phone.

What does one gray check mark in a WhatsApp message mean - in detail?

A single gray check mark in a WhatsApp message indicates that the message has been sent from your device but has not yet been delivered to the recipient's phone. This status signifies that while the message has left your device, it is still in transit and has not reached the intended recipient's device. The delivery process involves several steps, including transmission over the internet and reception by the recipient's device, which may take some time depending on various factors such as network connectivity and the recipient's phone status (whether it is turned off or out of range). Once the message successfully reaches the recipient's phone, the check mark will turn blue, signaling delivery.