In this week's poll we asked you how much storage is enough. Currently, most popular phones come with 32GB-64GB and the most you can get is 256GB. Samsung intends to change that as it started mass production of 512GB eUFS storage. The new storage has the same physical dimensions as the current 256GB storage, good news since internal space in phones is at a premium. Samsung built it out of 64-layer 512 gigabit chips, eight of them, while the older eUFS storage used 48-layer chips. The new storage promises 860MB/s sequential reads and 255MB/s sequential writes. It takes 6 seconds to copy...
Source: https://www.gsmarena.com/samsung_mass_producing_512gb_phone_storage-news-28583.php