The vivo S20 lineup is expected to arrive later this month. According to reliable leaks, the series will feature the S20 and S20 Pro, and at least one of the phones will get a large 6,500 mAh battery.
The phone will likely inherit the ultra-thin (under 8mm) body from the S19 series, which would be a great achievement considering the increased cell capacity.
The S series was Vivo's mid-range range for the Chinese market, and eventually went global as the Vivo V series with minor specification changes. This means that when we look at the vivo S20 and S20 Pro, we can see what to expect from the vivo V50 and V50 Pro once they officially launch in a few months.
Returning to the leak, both devices will likely have an AMOLED screen with a resolution of 1260p. The S20 appears to be sticking with the Snapdragon 7 Gen 3, while vivo will upgrade the S20 Pro to the Dimensity 9300. We've seen an even cheaper third variant before, but it doesn't look like there's a vivo S20e in the works for now.