Diabetes tech companies are racing toward 'fully closed loop' devices. But automation comes with trade-offs.

Insulet, MiniMed, and Tandem Diabetes Care are pursuing fully closed‑loop automated insulin delivery systems that compute insulin needs from a glucose sensor and deliver it via a pump without requiring users to announce meals. The developers say the next phase of their work will push toward a truly hands‑free experience, though experts caution that current devices still require user input under certain conditions such as exercise or illness. Open source projects like OpenAPS have already demonstrated what partial automation can look like, reinforcing that the term fully closed loop is debated among clinicians.