I have been using the bip 6 for a couple of months now. The sleep tracking is horribly inaccurate. It regularly says my sleep started 1 to 2hrs later than it did. I also have sleep tracking via my sleep buds as well as my Samsung health via my phone and they both will have similar sleep start times. The bip will have me laying awake till 1 or 2am. This gives me a poor sleep score which intern leads to a low biocharge that by mid morning will be at 5, which is effectively 0 . I sent a...Read more