The expansive ZenFone 4 series is nearing its launch and a new model equipped with the Snapdragon 660 has now appeared with the model name Z01KD.
https://www.notebookcheck.net/Mid-range-Asus-ZenFone-4-spotted-on-Geekbench.232444.0.html
That's a snapdragon 625 on geekbench