I hav bought a name brand one before and worked great but battery died so i bought this one. The silicone band was cheap and already ripped. wore in shower once and had condensation in it so i dried it out. Then i left on the counter top in bathroom and more condensation got in. But then it glitched out and shut off completely, so i took battery out dried it out and put battery back in and it didn't turn on at all.