The Vivo S1 Pro runs on Android 9 Pie with Funtouch OS 9.2, supports dual-SIM (Nano) slots, and features a 6.38-inch full-HD+ (1080x2340 pixels) Super AMOLED FullView Display. It is powered by Snapdragon 665 SoC, paired with 8GB of RAM. Internal storage is at 128GB, and it is expandable via microSD card (up to 256GB).

As for the camera, the new Vivo S1 Pro sports the diamond-shaped quad rear camera setup that has the 48-megapixel primary sensor along with an f/1.8 lens and an 8-megapixel secondary sensor with an ultra-wide-angle f/2.2 lens that has 108-degree of field of view (FoV).

The camera setup also includes two 2-megapixel sensors for depth sensing and macro photography -- with both carrying f/2.4 lenses on top. For selfies, the Vivo smartphone comes with a 32-megapixel selfie camera sensor at the front along with an f/2.0 lens.