Text Message Read Receipt

I have an iPhone 4 and a friend of mine has one. She has her read receipt turned on so I know when she's read my message. I like knowing when she's read it because she has a tendency to read and not respond which gets really annoying after a while.she's thinking about switching to the HTC One. Will I still be able to know when she's read my message?

Yes, if she turns it on. It is factory off on the htc.