​Accu-Chek is a popular brand of blood glucose monitoring systems (glucometers) from Roche, designed for people with diabetes to easily and accurately check their blood sugar levels using small blood samples, offering features like fast results (often under 5 seconds), memory storage, and connectivity to apps for tracking, with different models like the Active, Guide, and Instant offering various user-friendly features such as easy-fill strips or target range indicators. ​