What Does Fitbit Flex 2 Measure? A Comprehensive Guide

The Fitbit Flex 2 is a popular fitness tracker that offers users a multitude of features designed to help them lead a healthier lifestyle. In this comprehensive guide, we will explore what exactly the Fitbit Flex 2 measures, from activity tracking and sleep monitoring to heart rate monitoring and more. Whether you’re a beginner or a seasoned fitness enthusiast, this article will provide you with all the essential information you need to take full advantage of the Fitbit Flex 2 and track your progress towards your fitness goals.

1. Track Your Daily Steps and Distance

The Fitbit Flex 2 is an activity tracker that offers a comprehensive range of features to help you monitor and improve your fitness levels. One of its primary functions is to track your daily steps and distance traveled. By wearing the Flex 2 on your wrist, it will automatically record every step you take and calculate the distance you have covered throughout the day.

This feature is especially useful for individuals who are looking to increase their physical activity or lose weight. By setting a step goal, the Flex 2 can provide real-time feedback on your progress, motivating you to take more steps and achieve a healthier lifestyle. Additionally, the device has the capability to track specific activities such as walking, running, or cycling, giving you a more accurate representation of your overall exercise efforts.

By tracking your steps and distance, the Fitbit Flex 2 helps you become more aware of your daily activity levels and encourages you to make positive changes to your routine to reach your fitness goals.

2. Monitor Your Active Minutes and Calorie Burn

Fitbit Flex 2 tracks not only your steps and distance but also your active minutes and calorie burn. Active minutes refer to the amount of time you spend engaged in moderate to vigorous physical activities. It calculates the duration and intensity of your workouts, helping you monitor and improve your fitness level.

This feature is particularly useful for individuals who want to lose weight or maintain their current weight. By tracking your active minutes and calorie burn, you can have a clear understanding of how many calories you are burning throughout the day. This information can help you make informed decisions about your diet and exercise routine.

Fitbit Flex 2 uses advanced sensors to accurately measure your calorie burn. It takes into account your age, gender, weight, heart rate, and activity level to provide you with precise data.

With this comprehensive monitoring, you can set realistic goals for yourself and track your progress over time. Whether your aim is to increase your active minutes or burn more calories, Fitbit Flex 2 will help you stay motivated and on track to achieve your fitness goals.

3. Keep Tabs on Your Exercise Activities

Fitbit Flex 2 is not just a step tracker but also a comprehensive fitness companion that helps you keep track of all your exercise activities. Whether you’re going for a run, hitting the gym, or taking a yoga class, the Flex 2 will be by your side, monitoring and recording your workout sessions.

The device uses advanced sensors and algorithms to accurately record your exercise activities, including the duration, intensity, and calories burned during each activity. Whether you’re doing cardio, strength training, or any other form of exercise, the Flex 2 will provide you with detailed insights into your workout performance.

Additionally, the Flex 2 can automatically detect certain activities, such as walking, running, and biking, so you don’t have to manually log them. This feature comes in handy when you forget to start a workout session or when you engage in spontaneous physical activities.

With the Fitbit Flex 2, you can set exercise goals and track your progress over time. The device will provide you with real-time feedback and motivation to push yourself further and achieve your fitness targets. Whether you’re a fitness enthusiast or just starting your fitness journey, the Flex 2 will be your ultimate exercise companion.

4. Understand Your Sleep Patterns and Quality

Sleep is an essential aspect of our overall health and well-being, and the Fitbit Flex 2 helps you gain a deeper understanding of your sleep patterns and quality. By wearing the device while you sleep, it is able to accurately track your sleep stages and provide you with valuable insights.

The Fitbit Flex 2 measures the duration and quality of your sleep, including the time it takes for you to fall asleep, how many times you wake up during the night, and the overall efficiency of your sleep. It classifies your sleep into different stages, such as light, deep, and REM sleep, allowing you to understand the different phases of your sleep cycle.

With this information, you can identify any patterns or disruptions in your sleep, helping you make necessary adjustments to improve your sleep quality. You can also set sleep goals and receive personalized recommendations on how to achieve them, such as establishing a consistent sleep schedule or making changes to your sleep environment.

Overall, the Fitbit Flex 2 provides valuable insights into your sleep patterns and quality, enabling you to make positive changes to improve your overall well-being.

Get Insights into Your Heart Rate and Resting Heart Rate

Heart rate monitoring is a vital feature of the Fitbit Flex 2 that helps users understand their cardiovascular health. By measuring your heart rate throughout the day, this device provides valuable insights into how your heart responds to different activities and stress levels.

The Fitbit Flex 2 tracks your heart rate during exercise, allowing you to gauge the intensity of your workouts. By monitoring your heart rate, you can ensure that you are working within your desired target heart rate zone, which is essential for maximizing the benefits of your exercise routine.

Additionally, the Fitbit Flex 2 provides information about your resting heart rate. Resting heart rate, which is the number of times your heart beats per minute when you are at rest, is a key indicator of overall fitness and cardiovascular health. By regularly tracking your resting heart rate, you can monitor changes in your fitness level and detect any potential health issues.

The Fitbit app allows you to view your heart rate trends over time, helping you identify patterns and make adjustments to your lifestyle. With this information at your fingertips, you can make informed decisions about your health and take steps towards improving your overall well-being.

6. Stay Hydrated with the Water Intake Feature

The Fitbit Flex 2 offers a unique water intake feature that helps you stay hydrated throughout the day. This feature allows you to track your daily water consumption and ensure that you are meeting your hydration goals.

To use this feature, simply input the amount of water you drink into the Fitbit app, and the Flex 2 will keep a running tally of your intake. You can also set reminders to drink water at regular intervals to ensure you stay on track.

Proper hydration is essential for maintaining overall health and well-being. It aids in digestion, regulates body temperature, and supports joint health. With the water intake feature on the Fitbit Flex 2, you can easily monitor your hydration levels and make adjustments as needed.

By tracking your water consumption, you will gain a better understanding of your hydration habits and be able to make more informed choices about your daily intake. Whether you are an athlete, a busy professional, or simply looking to improve your overall health, the water intake feature on the Fitbit Flex 2 is a valuable tool for staying hydrated and achieving your wellness goals.

7. Monitor Your Progress and Set Goals with the Fitbit App

The Fitbit Flex 2 comes with a powerful companion app that allows you to monitor your progress and set goals. The app provides detailed information about your daily activity, from steps taken to calories burned and distance covered. It also displays charts and graphs that give you a comprehensive overview of your fitness journey.

With the Fitbit app, you can easily track your progress over time and identify trends in your activity levels. This can help you stay motivated and make adjustments to your routine if needed. The app also allows you to set goals and receive notifications when you reach them, providing you with a sense of accomplishment and encouraging you to keep pushing forward.

Additionally, the Fitbit app allows you to connect with friends and participate in challenges, creating a fun and competitive environment to help you stay on track. You can also sync the app with other fitness apps and devices, such as MyFitnessPal, for a more holistic view of your health and wellness.

Overall, the Fitbit app is a powerful tool that enhances the functionality of the Fitbit Flex 2, enabling you to monitor your progress, set goals, and stay motivated on your fitness journey.


1. What are the main measurements tracked by Fitbit Flex 2?

Fitbit Flex 2 is capable of measuring various aspects of your fitness and daily activities. It can track your daily steps, distance covered, calories burned, active minutes, and even your sleep quality.

2. Can Fitbit Flex 2 monitor heart rate?

No, Fitbit Flex 2 does not have a built-in heart rate monitor. If heart rate tracking is an important feature for you, you may consider other Fitbit models that offer this functionality, such as Fitbit Charge 4 or Fitbit Versa.

3. Does Fitbit Flex 2 track swimming activities?

Yes, Fitbit Flex 2 is water-resistant up to 50 meters and can track swimming activities. It can measure the duration of your swim, the number of laps, and the calories burned during your aquatic workouts.

4. Can Fitbit Flex 2 measure other specific activities?

While Fitbit Flex 2 is primarily focused on general activity and fitness tracking, it can also recognize and measure certain specific activities, such as running, cycling, and aerobic workouts. However, it may not provide as detailed data as more advanced Fitbit models with specialized sensors.

Wrapping Up

In conclusion, the Fitbit Flex 2 is a versatile and convenient fitness tracker that measures various aspects of one’s health and fitness. It is capable of accurately tracking steps, distance, calories burned, active minutes, and sleep patterns. Additionally, it is able to track specific activities such as swimming due to its waterproof design. With its sleek and customizable design, the Fitbit Flex 2 is a reliable tool for those looking to monitor and improve their overall well-being.

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