If you want to get more out of your Fitbit, then the correct band will help you wear it as much as possible.

The best Fitbit bands will let you wear the device at work all day, while working out at the gym, and when you sleep. It must feel comfortable around your wrist.

Fitbit makes it easy to choose the correct band for your device. They provide sizing guides that let you understand if you need a small, large, or extra-large product. 

How to Measure Your Wrist for a Fitbit

It is effortless to measure your wrist to know what size is necessary for your Fitbit. All you need to have is a flexible tape with inches printed on the side. You can find them in the sewing department of your favorite store. 

Many hardware stores also offer this product, although it may be at a size or length that isn’t helpful to this process.

Place the tape measure at the center of your wrist where you plan to wear the Fitbit. Then wrap the ribbon all of the way around until you meet back in the middle. The length that it shows equates to the size of the band you need.

The sizing chart for Fitbit products is reasonably straightforward.

If your wrist was between 5.5 inches to 6.7 inches, then you will need a small Fitbit band for a successful wearing experience.

When the tape measure says that your wrist is between 6.7 inches to 8.1 inches, then you will need a large band to secure the device.

If you got a result that was bigger than 8.1 inches, then you must contact Fitbit through their website to determine if an extra-large band is available for the model you prefer. At the time of this writing, you could purchase this option for the Inspire series.

Did your tape measure say that your wrist was larger than 9.3 inches? Then there isn’t a band from Fitbit to use, but there might be a third-party product that could fit.

Sizing for the Versa Series from Fitbit

If you like the Versa series from Fitbit, then the measurements are a little different.


You can wear a small band with your device if your wrist is as large as 7.1 inches. The large band goes up to 8.7 inches. At this time, there is not an extra-large option available for that series.

If you prefer the more affordable Ace 2 or a similar model, then you’ll receive a fully adjustable band with a one-size-fits-all perspective.

What If I Don’t Have a Tape Measure?

If you can’t find a cloth or ribbon tape measure, then all you need for an accurate measurement is a ruler and a piece of string.

Wrap the string around your wrist so that you can determine the correct length. Then place that next to a ruler to determine the number of inches required for a comfortable fit. This methodology is just as accurate.

Most Fitbit bands are slightly adjustable. If you’re unsure of what size to get because you’re measurements are borderline, then always go with the next size up.