Definition of each iMessage/SMS Delivery status
I'm wondering what every delivery status for both IMessage/SMS is? Such as: No "delivered" or anything (blank), delivered, sent as SMS (Why?). Thank you.
iPhone 13, iOS 15
Hello rikishia, welcome to the Apple Support Community Forum!
SMS messages (Green Bubble) won't say delivered under them since Apple has no way of guaranteeing if the message actually was delivered
iMessage messages (Blue Bubble) will say if they are delivered since they are processed through Apples servers and Apple knows when the recipient's device has received the message.
This article might also help;
What is the difference between iMessage and SMS/MMS? - Apple Support
Have a great day!