There are three big changes coming with OPPO’s new R11s compared to this summer’s R11 The first is the 6-inch, 18:9 aspect ratio display. There’s very little bezel, though the edges aren’t quite as curved as they are on the Samsung Galaxy S8 . Overall, this new display looks great. If you look closely, you can see what OPPO is calling the starry night effect, where there is a slight red gradient at the top and bottom of the glass. It’s a subtle touch, but it makes the phone feel more like a single piece of hardware. This effect is only on the red model, which is the one we were able to spend some time with. You can also get the R11s in black or champagne, if you’re looking for a less flamboyant look. Either way, you should know that the fingerprint reader has moved to the back of the phone, to accommodate the display. Fortunately, the reader seems just as quick as the one on the R11. The second big change concerns the cameras. The d...