What is the purpose of wearing a fitness tracking watch at the gym?

In my opinion, a fitness tracker is a useful in the gym, because:

- It fixes the distance traveled, counts the calories burned, as well as your heart rate.- Fitness tracker will allow you to monitor your food in detail. You can fill out information about the food that you used during the day, and monitor the total number of calories.- If you like competitive moments, then most fitness trackers will provide a network network. This will give you the opportunity to compare your results with friends and colleagues who also use such sports devices.  It is worth saying that almost all fitness trackers offer their parameters in them, at least it's weight, height and age. I advise you to fill this information, because the bracelet forms many tasks, focusing specifically on these data. Fitness tracker is a good helper for people who watch their health and actively go in for sports, but first of all build on their feelings, they will not replace your own feeling with any indicators of clever technology.

the most important to monitor the heart rate, the calories, time and follow your fitness program .

Fitness trackers are like gym memberships. When they're all shiny and new, it's easy to think they're going to change our lives and help us wave goodbye to our wobbly bits. Then, three months later the novelty wears and reality bites. You haven't suddenly developed the body of a magazine cover model and bit by bit you've simply stopped caring.

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distance walked or run, calorie consumption, and in some cases heartbeat 

From my knowledge, Information has hurt no one. In the contrary it is helping you to make the right decisions! 

Personal accountability – Unless the corresponding app you use with your fitness tracker encourages social media usage, the only person you’re truly competing against is yourself! Fitness trackers track your goals and your progress, psychologically encouraging you to walk more steps than you did yesterday; to run faster than you did yesterday; to sustain that peak heart rate for just a little longer for that intense interval training. Research shows that wearing a fitness trackers – even if it’s just a basic pedometer! – can increase a user’s activity levels by 30 percent!