Clues to the Next iPhone Are in Samsung’s New Galaxy S21 Years of smartphone launches all plotted on one evidence board. A fingerprint sensor embedded in the screen? An ultra-zoom camera? A faster 120Hz display? Samsung’s latest tells us a lot about what might come from Apple this year in the iPhone 13. WSJ’s Joanna Stern sifts through years of Galaxy and iPhone evidence. Photo illustration: Preston Jessee for The Wall Street Journal Personal Technology With Joanna Stern