Split minded with your product, think it offers a great piece of software...missing HR analysis after a workout however! The strap that comes as standard is required to be snug to the wrist, but pops off if any movement or strenuous work, for example lifting boxes. After purchasing your sports strap, I also find that this is not designed by someone who trains/workout a lot as it is still poorly made, and after a few weeks is already exhibiting signs of wear and tear. Thirdly, please include taxes in your first initial payment. This was highly stressing as I use my biostrap as a professional athlete everyday, and an email threatening to turn it off if fees are paid, which is the sellers responsibility to include in the initial payment. I am a big fan of your product, and sorry if this seems highly critical, but hope the feedback is invaluable...after all I am giving it to you for free. But also helps make your product better, as I think you have something great here. Looking forward to hearing back from you guys, My email is alex_brown32@hotmail.com Kind regards, Alex