Oooo interesting, I never heard of pulse before. I have a garmin watch and also use graphene, I have tried to switch over to gadgetbridge to keep my data on my device alone but for some reason my model of watch (forerunner 245) stops syncing with gadgetbridge after between 1 and 6 activities resulting in me having to basically delete everything and start again to force it to sync which means it may as well not work with gadgetbridge. I’d recommend checking out the list of supported devices and maybe try going for one that is fully supported in gadgetbridge, I believe mine is listed as mostly functioning as all the functions do work. Just not for long. I think I may try out this pulse though and see if it works any better! If you only want to monitor your stats in real time though you could choose any garmin watch really but equally garmin lock a lot of the customisation behind a shitty play store app these days so what you get out of the box is what you are stuck with in terms of data screen and stuff if you dont want to touch the play store