Smartphones turn waiting in lines or during transit into a chance to catch up...

https://iris-wiki.win/index.php/What_Does_It_Mean_to_Unlock_a_Phone_and_Is_It_Legal%3F

Smartphones turn waiting in lines or during transit into a chance to catch up on something enjoyable. Whether you’re tuning into a favorite podcast or watching short videos, your phone helps pass the time without stress