But while I was impressed by the demo there’s still one major concern. The FS9500 only works with OLED displays. Between the general cost of OLEDs and the current shortage, the tech isn’t about to be found in every smartphone on the market (though they are found in nearly every major flagship phone—including those from Samsung, Apple, Google, and LG). Some companies are even betting against OLEDs all together. Like Razer, which purposely went with an LCD display in the Razer Phone because it didn’t like how slow the refresh rate in OLED displays is.
So can an OLED-only fingerprint scanner really be the future of phone biometrics? Synaptics would say yes. Apple, on the other hand, will continue to point towards Face ID. As for the big Android phone makers? We’ll know more in the coming weeks. 

Samsung is rumored to launch its next major flagship at Mobile World Congress and there’s no question that its phones generally set the precedent for design trends in Android devices now days. There’s also little debate over the kind of fingerprint sensor it will employ—a big one on the back under the camera. So the big question is when will Synaptics tech finally make it to a flagship phone in America?