The strap that came with my Fitbit broke on Thanksgiving. It was still a guarantee but I never liked this band and wanted to try something different. I ordered them the same day and they arrived the Monday after Thanksgiving which was quicker than I expected. These groups are much better. They are breathable and more flexible than the original Fitbit straps. I have an Alta HR and was never able to get accurate heart rate readings until I got these bands. Because they're more flexible, the Fitbit has better contact with my wrist and measures my heart rate more accurately. That's just to make these strips with the purchase price for me.
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