Wearables, fitness apps and home-based monitoring technology designed to help manage chronic diseases are generally considered in terms of their effectiveness in saving costs and improving the health care system. This article looks, instead, at the digital health practices of persons older than 65 years; it considers their actual health practices, their senses and emotions. In a qualitative study 27 elderly persons were interviewed about their digital health practices and accompanied while using the devices. The findings show that digital technologies and ageing bodies are co-productive in performing specific modes of health and the ageing process. The study shows that digital technologies not only encourage the elderly to remain physically active and enable them to age in place, but also that the use of these technologies causes the elderly to develop negative emotions that stand in a charged relationship to ageing stereotypes. Thereby, the sense of seeing has been place in pole position, while the faculty for introspection declines. This means that age-related impaired vision can result in particularly severe consequences. In the discussion it is debated in which concrete ways that digital health technologies have had a negative impact. The sociotechnical practices associated with wearables conform to the primacy of preventing ageing; passive and active monitoring technologies appear as subsystems of risk estimation, which in turn regulates diverse practices. The conclusion highlights the interrelation between notions of successful ageing and the digital practices of the elderly.