Personally "It left the phone" state is very important to me, esp., when I am travelling and network connectivity is intermittent. Also "Message Read" is a ver

Personally "It left the phone" state is very important to me, esp., when I am travelling and network connectivity is intermittent. Also "Message Read" is a very ambiguous state according to me - If the content of a message is read from the notification drop down, but user never opened whatsapp to read it - is it read, or not ?