Do WhatsApp SMS messages arrive if my phone is switched off - briefly?
When your phone is switched off, you do not receive any WhatsApp messages or SMS. Both types of messages are stored on the server and will be delivered once your device is turned back on and has an active internet connection.
Do WhatsApp SMS messages arrive if my phone is switched off - in detail?
When your phone is switched off, it cannot receive any type of message, including those sent via WhatsApp. This is because a phone that is turned off is not connected to the cellular network or the internet, which are both necessary for delivering messages.
WhatsApp messages require an active internet connection to be delivered and read. When you send a message through WhatsApp, it travels over the internet from your device to the recipient's device. If the recipient's phone is switched off, the message cannot be delivered as there is no active connection available.
Once the recipient turns their phone back on, they will start receiving messages again. However, any messages sent while the phone was off will not appear immediately upon turning the phone on. The recipient needs to connect to the internet for the messages to be retrieved and displayed in their WhatsApp chat.
It is also important to note that WhatsApp does not use SMS (Short Message Service) as its primary method of communication. Instead, it relies on data connections provided by your mobile network or Wi-Fi. Therefore, even if you were referring to traditional SMS messages, the same principle would apply: if your phone is switched off, you will not receive any SMS messages until you turn it back on and reconnect to your mobile network.
In summary, when your phone is turned off, you will not receive WhatsApp messages or any other type of message until you power your phone back on and reconnect to the internet or your mobile network.