Let's you know to eat just one next time. Lets you and your doctor quickly realize you may be over-treating lows with carbs or injecting too much insulin for your highs. This is a suggestion from Jose Riberio who hates to manually calculate the carb coverage on his pump that his doctor has given him. Instead, he'd like to enter the grams of carb he desires to eat in a meal into his meter, and let his meter do the calculation for him based on his carb ratio. And if his blood sugar is high or low, he also wants a device to work out a suggested insulin dose to cover his high blood sugar, based on his anticipated point drop given to him by his physician.
Current meters average all blood sugars.
Also lets you test repeatedly during a high or low, when you want to track readings more carefully, without it creating a discouragingly high overall average. Largely because they are making so much money for so little effort. Presenting data in a meaningful format is NOT medical advice. Presenting blood sugar data in clearer ways that allow you and your doctor to improve your readings is not medical advice. Blood sugar patterns are present within your meter's data, and these patterns are obvious to those who have an eye for spotting them and are willing to dig through the data.