Pocket-sized design Smart user interface 3-hour payouts Smart Tip feature Automatic software updates Countertop display charging station 1.69% Transaction fee SumUp Solo Smart Card Reader The SumUp Solo Smart Card Reader is an advanced, all-in-one payment solution designed to help your business run smoothly anywhere. Featuring a smart touchscreen interface, Solo delivers a fast, intuitive checkout experience for both you and your customers. With strong Wi-Fi connectivity and a free built-in SIM with mobile data, Solo allows you to accept payments wherever business takes you - no phone or tablet required. Its compact, pocket-sized design makes it ideal for retail counters, pop-ups, cafés and mobile businesses.