Oh look, Fitbit is probably going to make more Fitbits!

New trademark filings released today suggest that Fitbit is going to update its Charge and Flex wearables. The trademarks cover the Fitbit Charge 2 and the Fitbit Flex 2, marking the first upgrades to the devices since they were released in 2014 and 2013, respectively. Fitbit already released two new products this year — the Blaze and the Alta — both of which were on the higher end of its offerings. Four products in one year? Does filing trademarks burn calories? If so, how many?