This year, Samsung released a half-fold mobile phone, known as "a new chapter in mobile innovation ".
This is a place that may need to be rewritten in a hurry because many journalists and gadget reviewers were sent 1,800 devices earlier and they said they had broken down after a few days of use.
The South Korean tech group released the Galaxy Fold in February.
It starts with a normal 4 smartphone.
6 in screen, then can be folded into 7.
3 on the tablet screen, open like a book or a map.
The company says the phone can withstand 200,000 times in five years, or 100 times a day.