The Oppo R11s has mostly managed to avoid the paparazzi but it slipped up by leaving its specs at AnTuTu. Here are some of the changes that this wide-screen upgrade will bring. For one, the screen switches to 1,080 x 2,160px resolution - the 18:9 version of 1080p. The screen diagonal should be somewhere between 5.8" and 6", though the benchmark can't tell us that. The camera is different too - it now has two 20MP sensors, instead of 20MP + 16MP (the latter being the color sensor). So we're due for an upgrade in photo resolution, but it will be interesting to see if (and how) the sensor...
Source: https://www.gsmarena.com/oppo_r11s_specs_from_antutu-news-27884.php