The SumUp 3G is a mobile card reader that allows small businesses and individuals to accept card payments on the go. It connects to a smartphone or tablet via Bluetooth and uses a 3G connection to process transactions. Our website sells a range of screen protectors specifically designed for the SumUp 3G, which help to protect the device from scratches, cracks, and other damage. These screen protectors are made from high-quality materials and are easy to install, ensuring that the SumUp 3G remains in top condition and continues to function effectively.