Question about Accu-Chek Guide Set mmol/l incl. 10 tests

I have only ever measured current blood sugar

Only the acute value is measured. Long-term measurements would then be taken by the doctor. I do this about 3 times a year. I previously had the Contour XT device. This was more accurate than Accu-Chek, i.e. Accu-Chek is always 0.5 to 1 higher. However, I chose Accu-Chek because I can have the data automatically transferred to the MySugr app (works perfectly) and from there automatically to the iPhone app Health. That's how I see the trend in Health. I measure once a week. I hope that helps.

Only the current one. Only the doctor can measure the Hba1c.