Smart packaging and smart labels represent a huge potential market nowadays, and with the willingness to minimize the impact on environment and to target a circular economy, I will explain why printed electronics on paper is a good alternative versus other approaches. In this talk, I will present the different strategies to manufacture smart packaging and review the different sensors that could be printed (temperature, pressure, humidity, open detection, bending, pH …) and how we can connect it, power it and get the data. Already commercialized examples will be given as well as research programs. The recyclability will also be analyzed on 2 real examples for a shock detection tags and an anticounterfeiting label on paper.