Realme has announced that it will launch its 5G-enabled flagship phone, the X50 Pro, in China on March 12, 2020. The OEM has also had the device approved for sale in this market by TENAA. The resulting leak reveals the possibility of a storage SKU that is not currently available in other markets.
https://www.notebookcheck.net/The-Realme-X50-Pro-5G-s-internal-storage-may-go-up-to-512GB-on-its-Chinese-market-debut.456160.0.html