Currently there is only one vivo phone with a Snapdragon 845 chipset - the NEX S. There just might be a second phone on the way, though Geekbench 4 doesn't give enough details to tell for sure. A "vivo 1805" was benchmarked with Qualcomm's top chipset. It ran Android 8.1 and packed 8 GB of RAM. There's a few megs of difference between the NEX S and the 1805, but again that's not enough to be certain that these are different devices. Looking at vivo's lineup, it can definitely use a few more Snapdragon 845 entries. There are plenty of phones with the Snapdragon 660 - like the Z1, V9...
Source: https://www.gsmarena.com/snapdragon_845powered_vivo_1805_visits_tenaa-news-32030.php
