Vivo has released a new 5G device in the Y78 series, joining the existing Vivo Y78 and Vivo Y78+. The Vivo Y78m launched in China is a mid-range phone with a large display and dual-camera setup. Vivo Y78m Specifications The Vivo Y78m features a 6.64-inch FHD+ LCD panel with a 120Hz refresh rate and a…