The vivo X100 has been available in China since November, and apparently the company is already working on a slight refresh of this model. It will be called X100s, and it's coming soon to the Chinese market using the same Dimensity 9300 chipset as its predecessor, according to prolific (and often right) leakster Digital Chat Station over on Weibo. The X100s' design has allegedly already been finalized. The phone will have a "1.5K" flat screen with "ultra-narrow" bezels, a flat metal frame and glass on both the front and the back. vivo X100 with curved screen and orange colorway...
Source: https://www.gsmarena.com/vivo_x100s_is_coming_with_a_flat_screen_and_flat_frame_new_colors-news-61956.php