The phones have model numbers: V2285A (Vivo S17e), V2283A (Vivo S17), and V2284A (Vivo S17 Pro). Know the complete details of the phone.

Vivo S17 series specifications
According to the tipster, the Vivo S17 will be powered by the Snapdragon SM7325, which could be the Qualcomm Snapdragon 778G or the Snapdragon 782G chipset.
On the other hand, Vivo S17 Pro will come with MediaTek Dimensity 8200 chipset. In comparison, the Vivo S16 and S16 Pro came with Snapdragon 870 and Dimensity 8200 chipsets respectively. The leakster further claimed that the Vivo S17 and S17 Pro will feature a BOE-supplied OLED display with 1.5K resolution. The leakster has not revealed the screen size. Earlier reports indicated that the phone will have curved panels.
Vivo S17 and S17 Pro will have 50MP Sony IMX766V primary camera, which may have OIS support. There is a 12MP IMX663 telephoto camera. Lastly, the leakster reveals that the Vivo S17 series will carry 80W fast charging support. This is pretty much all that is known about the phone at the moment.