you may only connect to the fitbit service using -lrb- i -rrb- a device that is manufactured , distributed , or sold by fitbit itself or through its authorized resellers or agents ; -lrb- ii -rrb- our mobile applications and software , or approved third-party applications , software , or devices ; or -lrb- iii -rrb- our websites -lrb- `` authorized connections '' -rrb- .