Internal memory is the memory where all the data of the mobile device is stored, the operating system, applications, photos, videos, music, chats, are stored in this memory so it is important to know if the device we are going to buy has of enough storage space for our needs.
The internal memory in mobile devices is equivalent to the hard drive in computers.
64 GB of internal memory can be considered an acceptable amount for today's needs, in this storage space you can have enough space for the operating system, a reasonable number of applications, chats, photos and videos.
With a device with 64 Gb of internal memory and a cloud storage service where we upload our photos, videos and backup copies of the chats of messaging applications, we can consider that we will not have space problems although if you are a very demanding user or that takes and stores a lot of photos and videos, we recommend that you move to the next step of 128GB to ensure that the device does not become small in terms of space in a couple of years.