Past that, I think it would be interesting to see how Google is going to operate Fitbit moving forward. I personally never found Fitbit attractive (as a product or company) and for the time it was public neither did Wall Street.
I think companies like Fitbit and GoPro will always struggle to create a defensible position in their market. On one side you have Apple squeezing pressing with their cult-like brand and high quality, taking all the upper-end of the market.
On the other side you have the Chinese brands leveraging thier efficiency to create products that serve the lower-end of the market. They compete on price but also have a lot of upper room to apply their efficiencies and squeeze market out of the middle.
And who is the middle? A company like Fitbit that has to compete on both ends while trying to avoid cannibalization.
I think Google's opportunity is to fold that wearable business into their smartphone business and attempt to gain terrain with very tight integrations that can't be used by their Chinese competitors. I don't see any other way for them to win with this acquisition.