The 48 MP ISOCELL Bright GM1 and 32 MP ISOCELL Bright GD1 are Samsung's new 0.8-micrometer image sensors for mobile devices that enable camera module manufacturers to build smaller modules or cram more pixels into existing designs. These sensors support Gyro-based image stabilization and the Tetracell technology for increased light sensitivity.
https://www.notebookcheck.net/Samsung-intros-48-MP-and-32-MP-0-8-mm-ISOCELL-sensors.352076.0.html
"Tetracell" does sound better than "quad bayer", but is probably just as bad.