If you hold the Samsung Galaxy S8 and S9 next to one another you'd be hard-pressed to tell the two apart, and that's by design. The improvements over last year are designed to be subtle, but appreciated refinements, mostly around the camera.
Our take: If you liked the S8, you'll like the S9. Like its predecessor, the S9 is beautiful and powerful, but there may not be enough there to merit upgrading. The same goes for the larger-screen S9+,