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Size Chart - Fitbit Blaze Twist-o-Flex

Fitbit Blaze Band Sizes

Band Size Wrist Size (in inches) Wrist Size (in mm)
S 6.5" – 6.7" 165-170
M 7.1" – 7.3" 180-185 
L 8.1" – 8.3"

View our Band Length Sizing Guide

If you are on the line between sizes, we recommend choosing the larger size as you can remove links with the use of our link removal guide. You can also visit a local authorized Speidel jeweler and have it sized for you.


If you do not see your size above, please order the custom size option and email your wrist size. We will happily custom the band to fit your wrist.

If you need a size that is larger than our current offerings, additional links can be added. Visit for additional link kits.