What health tracking devices are we using?
I may be about to accidentally start expensive shopping habits for myself, but I'm curious: what health tracking devices are you all using? I have hEDS, dysautonomia/POTS, and MCAS, and currently use an Apple Watch, which I like, but I'm fascinated by all the different ways people track symptoms, pacing, heart rate, sleep, HRV, activity levels, crashes, etc.
Tell me about your watches, rings, chest straps, ECG monitors, symptom-tracking apps, spreadsheets, colour-coded notebooks, or whatever other system you've developed in your quest to collect data on your weird little meat vehicle lol. What's been genuinely helpful, and what's just been interesting data?