This watch is very unique and innovative in all that it does. I worried if it were accurate but seems to be. It is water resistant if not waterproof. It stays charged for almost two days. The only reason I gave it a 4 star is it needs a manual to show how to get back to where you want to be easily, it seems to get stuck on a display with no way to get back to where you were. An example is I changed the switch from list to tiles and cannot seem to get back to tiles where I can actually see what it says since I do not see an icon for Activities in the tiles. The font definitely needs to be bigger. However, my hat off to this unique and innovative watch that does so much more than the Apple Smartwatch I had.