My 5 cents. Fitbit discontinued one of their best products Fitbit Flex 2, which I'm still using. It's a 50 bucks rubber band with 1 week battery life that tracks sleep & steps.

I don't really know why they cancelled it but I'm wearing Fitbit flex and later flex 2 since they entered the market and it's a divice that I'm used to wear and forget even when I'm asleep ( compared to the Apple Watch, which nevertheless needs daily charge and is simply too bulky to wear in bed ). I haven't found any decent competitors on that part and I'm honestly afraid of the wasted hours when I have to decide what to use as a replacement.