Can anyone help? Helio Core

I received my Helio Core on Friday. In​ that time it is not successfully recorded a single night's sleep.​ I received highly inaccurate information on the first night, which i expected. However, every night since it has failed to record sleep. While working out today, it disconnected five or six times​. I have both an arm band and the wrist band. Neither of them have changed the functionality of the product. I am fully up to date, have restarted it, and reconnected it multiple times. None of which​ has resolved or improved the issue. Battery is over 60% and has not dropped below that point. It doesn't seem like I should be experiencing this much trouble having only owned it for a few days. I'm considering returning it, but before I do, any advice?