From the 22nd of January to the 4th of April, the fourth round - also called Batch - will run in the startup program Retailtech Hub. Startups from all over the world have qualified. This time around, innovations include smart refrigerators, flying shelf scanners, smart product labels and software that adapts business strategy to the weather. We asked the startups what exactly they are doing and what benefits their startup has for the customer. More information about the startups can be found here.