The vivo S15 and vivo S15 Pro are expected to arrive in China this month. The phones were already certified at 3C with model numbers V2199A and V2203A, and the former, reportedly the vanilla variant, is also on TENAA with full specs but no photos yet.
According to the listing, it will be powered by a 3.2 GHz CPU that comes with the Snapdragon 870 chipset.
The vivo S15 has a 6.62-inch AMOLED display with a resolution of 1080p. There is one front camera with a 16 MP sensor, while the main setup on the back is 64 MP + 8 MP + 2 MP. There will be a 12GB RAM option and 512GB storage, but no word on a micro SD slot.
The battery is listed as 2,290mAh, which is likely one of two cells, meaning the minimum charge is 4,580mAh, while the standard could be anywhere from 4,600mAh to 5,000mAh. The 3C listing already confirmed 80W fast charging capabilities through the wire.
Source (in Chinese) | Through