KNCA reports that it uses indigenous materials in the manufacturing of these devices which appear to be running Android. Let me just give my two cents here and say that this is almost 100% tripe, pictures of him looking at phones means nothing.
Most likely is that these have been shipped in from China and merely inspected in NK before going on sale. On the plus for his enemies, you will have no problem hacking into his device seeing as it runs Android, although that could yet turn out to be a KIRF OS.
The KNCA had this to say:
He learned in detail about the performance, quality and packing of “Arirang” hand phone being made at this factory.
He highly appreciated the creative ingenuity and patriotic enthusiasm with which the officials and employees of the factory laid a solid foundation for mass-producing hand phones by building a new modern hand phone production process.
He praised them for developing an application program in Korean style which provides the best convenience to the users while strictly guaranteeing security.
After learning about the performance of a touch hand phone, he said that a hand phone is convenient for its user when that part of the phone is sensitive.
He noted that these hand phones will be very convenient for their users as their camera function has high pixels.
After being told that “Arirang” hand phones which the factory started producing a few days ago are high in demand among people, he said he was also pleased as they are liked by people.
Looking at the trademark “Arirang” inscribed on the hand phone, he noted that mass-production of goods with DPRK trademark can instill national pride and self-respect into the Korean people.
How nice to see hand phones being successfully produced with indigenous technology, he said, adding it is of educational significance in making people love Korean things.
He said that only when the quality of products is improved while boosting their production, people will like home-made things and they will be in high demand. — KCNA, August 11, 2013.