A:AnswerI have used mine for a year & a half in water aerobics & hot tubs
without problems. I have worked in muck working in a marina pretty hard and only came out with a couple tiny scratches on the glass that haven't affected its use. Hope this helps!
A:AnswerYou can go to the main menu on your garmin app, the three straight horizontal bars at the upper left of the screen. Under "help," it says "manuals," for online acces to a manual on the garmin website.
A:AnswerI would go into the tracker and add an activity as Horseback riding. But you will need to go into the application to do this. As you bounce up and down on the horse, it make otherwise think you are either walking fast or running or doing steps.
A:AnswerI don't see any adverse effects on my health by using this device. When I use it to track sleep, I switch it to the opposite wrist to keep it from irritating my skin--which a previous fitness tracker did.