The same chipset was found in the Google Console Play listing for the Vivo X100s as well. This suggests that both the phones might run the same chipset but there would be other differences between the two devices.
In terms of design, the Vivo X100s Pro looks quite similar to the X100 series. It has the same large circular camera module at the back housing three sensors and a curved display up front. There's a punch-hole camera with the volume keys and power button on the side. The Vivo X100s Pro is seen here in a light blue colour. It could launch in more colour options.
There's no official announcement on the Vivo X100s Pro yet but it's expected to launch alongside the Vivo X Fold 4 and Pad 3 later this month. There would be two phones in the series including the X100s. Vivo has already launched the X100 and X100 Pro in India so it's unclear whether the X100s series will arrive here or not.