Exhibit II

to

Schedule 13G

Joint Filing Agreement

The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated August 10, 2015 in connection with their beneficial ownership of Fitbit Inc. Each of Columbia Select Large Cap Growth Fund and Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and make any necessary amendments thereto.

Ameriprise Financial, Inc.
By:	/s/ Richard Dluzniewski
	Richard Dluzniewski
	Vice President-Control & Operational Risk – Operations and Investor Services
Columbia Management Investment Advisers, LLC
By:	/s/ Amy Johnson
	Amy Johnson
	Title: Chief Operating Officer and Managing Director
Columbia Select Large Cap Growth Fund
By:	/s/ Paul Goucher
	Paul Goucher
	Senior Vice President, Chief Legal Officer and Assistant Secretary