Do you have the new FIT IONIC smart watch already? The announcement of that new watch(that is said to combine new DXCM bg-sensing technology in its innards) was 1st made last Sept. 7, with delivery expected to occur in 1st quarter 2018. I have never used or experienced a FIT product myself.
BTW, I saw that FIT, JNJ and AAPL were among a group of 9 that FDA selected to collaborate in developing some new aspects of bg-sensing technology...I don't recall further details.