My original Alta HR strap broke in less than a year where the strap contacted the device. I assumed the thicker band meant more durability. Not true! I bought 4 packs of Zerofire based on price and color variety. For example: The straps are more secure than the original FitBit strap at the connection point to the Alta. The straps are a lot thinner, but that makes them a lot lighter on my wrist, which I like. I still have one of the original boxes that I bought in 2019. I'm very rough with them and the straps held themselves up. The plastic strap broke, but the Gorilla Glue solved that problem. I bought another backup pack for a great price. I'm a happy user.
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