Core Points - Vivo officially announced that the S50 series launch event will be invitation-only, with no tickets available for purchase, and warned against fraudulent ticket sales [1] - The Vivo S50 series is set to be launched on December 15 at 19:00, featuring two models: S50 Pro mini and S50 [1] - The S50 Pro mini will be equipped with Qualcomm's fifth-generation Snapdragon 8 chip, while the standard S50 will use the third-generation Snapdragon 8s [1] - Both models will feature a Sony IMX882 large sensor periscope camera with a size of 1/1.95 inches [1] - The design of the S50 Pro mini includes a horizontal rear camera module, while the standard S50 has a rectangular camera module design [1]