vivo S10 first leaked a couple of days ago and now the phone can also be found in Geekbench’s database with a model number V2121A confirming the Dimensity 1100 SoC.
The listing also confirms the 12GB RAM variant. The previous leak also mentioned an 8GB version.
vivo S10 Geekbench listing
The listing doesn’t reveal much aside from the already known and mentioned specs but it’s certainly be signaling a nearing launch or announcement.