To check your fitness stats on your band's screen you just have to press the button one time and you'll have them on your display.

Note: In order for us to register and extract your data properly, you must set your age/sex/height/weight and skin tone correctly on your User Profile.

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How do we track your steps?

X-Wrist bands use a 3-axis accelerometer to count your steps and movements.

This sensor also allows your device to determine the frequency, duration, intensity, and patterns of your movement.

How do we track your calories?

X-Wrist devices combine your basal metabolic rate (BMR)—the rate at which you burn calories at rest to maintain vital body functions (including breathing, blood circulation, and heartbeat)—and your activity data to estimate your calories burned.

If your device also tracks heart rate, your heartrate data is also included and used to increase the accuracy of estimated calories burned during exercise.

The number you see on your X-Wrist device is your total calories burned for the day.

How do we track the distance?

X-Wrist devices use the formula below to calculate distance.

Note that your stride length is determined by your height and sex.

Steps x Stride Length = Distance Traveled

How do we measure your heartrate?

The X-Wrist band uses optical heart rate sensor measures (OHRM) to track pulse waves, which are changes in the volume of a blood vessel that occur when the heart pumps blood.

Pulse waves are detected by measuring the change in volume using an optical sensor and green LED.

Humans have a diverse range of skin tones and different skin tones absorb light differently.

For example, darker skin absorbs more light, which presents a challenge because many OHRM’s don’t use the right mitigations to accurately measure heart rate through dark skin. The same applies for measuring heart rate on tattooed skin.

Make sure to chose the correct skin tone so the measurements be of maximum accuracy. You can make this selection by navigating to your User Profile.

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