The Realme X3 Pro is a phone that has been shrouded in mystery, not to mention uncertainty as to whether a device of this name will even see a launch event this year. Some leaks have thrown up more new model numbers associated with this brand with possible specs that may yet fit the bill.
https://www.notebookcheck.net/More-leaks-may-or-may-not-point-to-the-imminent-launch-of-the-Realme-X3-Pro.484366.0.html