Although we praised the Galaxy S8 for its stunning screen and solid performance, our
biggest gripe was the inconvenient placement of its fingerprint sensor to the side of the camera, which we kept touching instead of the hit-or-miss sensor.
Perplexingly, the Galaxy Note 8 followed with the exact same design. If this rumor's true, Samsung will make the rear-sensor placement a trend.
Previous rumors suggested that the Galaxy S8 may include a fingerprint sensor as part of the display -- not on the screen glass, but in the layers below. That clearly didn't happen, but the reports that Samsung has been working on this technology, persist.
According to The Investor, Samsung has been thinking about putting in-display sensors into its phones for the past few years, but apparently keeps running into technical difficulties. That being said, the report claims that Samsung may try to bring the feature to the next Galaxy Note phone, the Note 9. https://www.cnet.com/news/galaxy-s9-fingerprint-scanner-not-in-display-report/
