Samsung has just rolled third Android 8.0 Oreo beta for Galaxy S8 in the United States. A list of bug fixes is pretty long, but there is nothing particulary major in it; no big, new features, just a number of issue fixes and stability improvements.
New to the 8.0 Oreo on Galaxy S8? You are in for a treat! Oreo's features include an always-on display, Samsung DeX, enhanced video player, improved keyboard, new edge lighting effects and more.
iPhone X is much more popular than iPhone 8. Duh
Motorola continues the Android 7.0 Nougat roll-out for the US release of Moto X Pure Edition

