When I first got a series 3 it said had to use modular face. Recently updated to series 6 and found out Dexcom has not completely caught up. It works but I have to tap it to see reading. Pretty sure G7 is compatible. Will see when my new script is ready to pick up G7. So I just use modular and Dexcom goes in the middle. I’m not technical at all so if I can set up anyone can. Good luck. I love this watch.
You can use any watch face that has a calendar on it, sugarmate uses the calendar to report the dex values.dexcom ap itself take like30 sec to respond so it irritates me . That’s why I set up the sugarmate thing . When we finally get the direct to watch ability, we won’t need to worry about it