A dual camera for selfies and a tri-camera setup on the back — this is the mobile photography hardware rumored to be used by Samsung for the upcoming Galaxy S10+ flagship. Currently codenamed "Beyond 2," this handset is expected to become — alongside the S10 — the first Samsung phone with a triple camera setup, as well as the first S series device with two front cameras.
https://www.notebookcheck.net/The-Samsung-Galaxy-S10-flagship-might-feature-five-cameras.315502.0.html