I want to purchase a self tracking device for myself that has activity, heart rate, & sleep from heart rate (would also love skin temperature and galvanic skin response but there are only a few that seem to have that, with their own limitations). I also do research using time series analysis on animal activity/movement data, so it is really important to me that I can export my data with the smallest time scale possible so that I can pilot some of the analyses I'm doing on human data. After a whole lot of searching I'm debating on a fitbit or garmin (currently contacting their health and research teams about accessing APIs to get time series data). The device that is closest to perfect in capabilities is the E4 by empatica (https://www.empatica.com/research/e4/), but it is kinda bulky and is $1690 (eek!).
If I am unable to access a fitbit or garmin API for pilot study research, it seems Fitabase could be an option, thought I expect it to be pricey. Does anyone know the general cost? I noticed that their list of clients includes several of the University of Californias and Quantified Self. How exactly does fitbase work? Is it purchased by an individual researcher, a lab, a department, an institution, or any of these? Does QS have an account??