Tempted but I have so many issues with Apple Health that I can't do it. Plus lack of sleep monitoring. The FitBit app is what keeps me with FitBit. Everything is synced online. It's fast. With Apple Health, I have 16 GB of data that I can't export (I've been through to Apple's highest levels of tech support--even executive customer support) and it just doesn't work. And it can't handle all that data so the app is unusably slow. The Apple Watch is exactly the type of thing I would use otherwise. I have a $399 pulse oximeter (the MightySat--it's now 299 but was 399 when I got it), the AliveCor EKG, an Omron 786N blood pressure monitor, a CGM (continuous glucose monitor), and a FitBit Charge 2. I am the exact person who would love the Apple Watch, but I just can't get Apple Health to work well. And for me it's all about quantifying data and looking at long-term trends. Apple has suggested I just delete my Apple Health data because they have no other solution, but for me that's not a solution.