With the cancellation of MWC 2020 due to the coronavirus, Vivo is set to unveil the APEX 2020 concept phone on February 28 globally.
The device will be introduced via an online launch event and Vivo has shared a couple of teasers to stir the hype before the event.
The front will house a 6.45-inch screen with an extreme 120° curve on both sides. The panel is also believed to come with a 120Hz refresh rate while the sides will feature second-generation pressure-sensitive on-screen buttons

Vivo started introducing concept phones since 2018 at the MWC 2018; with the first one introducing world to pop-up selfie cameras while the second one was unveiled in 2019.
I am sure more details and images would be released ahead of Friday.