Hi @1swat1 , yes it will. Suppose you install a new "animated" Clock Face on your Versa with the size of, f.i., 1.4 mB. this will of course affect the available memory since the CF is actually installed on your Versa. Regards kuzibri
BTW, this "extrem"example will not only affect your memory, but also drains your battery like hell. Most of the Fitbit apps are small in size. so storage enough to install some apps.
My thought is to go ahead and download whatever apps you want. I doubt you will run out of storage space, but if you do, you can always delete.
BTW @SunsetRunner 's example of using battery is for a clock face that is always running and uses battery for display, and should not be relevant to most apps that you might use occasionally.