In addition to the 512MB of storage, the listing also shows that the smartphone has 6GB of RAM onboard. The fact that 512GB smartphones would be arriving sometime this year isn't exactly a surprise. In late 2018, Samsung announced that it was shipping 512GB eUFS V-NAND for smartphone applications. Samsung's offering uses 64-layer 512-gigabit (Gb) V-NAND flash memory chips and a controller chip, all stacked together.
Samsung's chips promise sequential read and write speeds of 860MB/sec and 255MB/sec respectively, although it is not known if Huawei is using these particular chips in its unnamed smartphone.
PhoneRadar, which spotted the TENAA listing, says that the smartphone could be the rumored Mate X. In the meantime, smartphone enthusiasts will soon be able to get their hands on the Huawei P20 family, which is set to be officially revealed next week. The flagship model, the P20 Pro, is said to come with three rear cameras, one of which will have a 40MP sensor.
The only problem is that U.S. residents won't be able to easily pick up the phone, as U.S. carriers have all snubbed the Chinese smartphone OEM over security concerns, and Best Buy has also decided to cut ties with the company.