Apple Watch Series 6

Just wondering if anyone has purchased the 6 or if any of our tech savvy members know if any of the aFib related features are an improvement over the 5 and/or if the 6 is anything to get excited about?

I have the 4 series and love it. The only advantage I see between the 5 and 6 (from what I read) is the O2 monitoring. I also was a Samsung galaxy ekg watch beta tester. Ucsf is still doing trials fir Samsung. If you commit to taking a couple of readings a day and wear a free holter, you get to keep the free ekg watch. But after the study you have to promise not to sell it or gift it for a year. You have to qualify by getting af at least once a month.

You can search this forum for the details.