Glucometer: what it is and how it works, types and which one is better
- 24.04.2025
A glucometer is a device that measures blood sugar levels. People with diabetes use it to monitor their indicators and understand whether it is necessary to take insulin, what foods can be eaten at the moment. Let's consider how the glucometer works. What are the different types of this device and which one is better?
How does the glucometer work
Let's consider the work of this device on the example of the classic technology. The user puts a drop of blood on a special test strip and installs it in the device. The glucometer analyzes the content of glucose in the blood, using a reaction at the chemical level. The electrical signal generated by this reaction is processed by the glucometer, which then displays the result on the screen. The data is presented as a number indicating the glucose level in milligrams per deciliter of blood. If the result is higher or lower than normal, the person takes action to normalize blood sugar levels.
Types of Glucometers
Glucometers differ in the methods of analysis and the technology used in the machines. Therefore, they have different measurement times, accuracy of results, size and ease of use. The main types of glucometers:
- Devices with test strips are most often used at home. Their peculiarity is that every time to get a drop of blood for testing you need to pierce your finger.
- Continuous glucometers monitor blood glucose levels continuously, without the need to prick your finger. They are worn on the body. Data is received on a mobile device.
- Glucometers without test strips measure glucose levels by laser or through electrodes on the skin.
Smart glucometers are linked to mobile apps to track glucose levels. Some devices are designed specifically for children, with simpler interfaces and bright colors. They produce lightweight and compact glucometers that are convenient to take with you.
Which glucometer is better
It is impossible to say unequivocally which glucometer is better, because it depends on the individual needs of the person. Glucometers with test strips are used by most people with diabetes. They have a fairly high accuracy of measurements. However, continuous glucometers can provide more detailed data on the dynamics of sugar levels. Also, it is continuous monitoring without the need to prick your finger.
Several criteria for choosing a glucometer:
- The accuracy of measurements can be found by reviews of a particular model of the device.
- Choose a glucometer with a simple and intuitive interface that is easy to use in everyday life.
- Be sure to check whether test strips are available for the selected model of glucometer, find out their cost.
- Glucometers with test strips are cheaper than other types of devices for measuring blood glucose.
- Find out if there is an option to connect the glucometer with a smartphone, if necessary.
It is important to purchase a glucometer with proven accuracy and recommended by medical professionals. The reliability of measurement results may depend on the characteristics of each specific device and the correct use of the device. It is recommended to consult a doctor to choose the glucometer that best suits your personal needs and health condition.