With films I have my experience since the bygone times of the Pocket PC. Therefore, I know the problem with the dust. It has nothing to do with product quality, if you have grains of the film but more of that with the quality of work, which attaches the film). And these films here are very, very good. Crystal clear, super adhesive, sparkling and smooth as glass. For surface hardness I can not say anything yet, because the film sits only been 3 days. The film, incidentally, virtually no undersized. I guess all round 0.25mm, if you should just take the middle of the glass. Since it hardly creates, she now sits on one side so flush with the edge of the bezel, that I was afraid they never get back from the glass (which is not a problem with a piece of scotch tape). Speaking of Tesa: I, too, had the film again partially peel and remove 2-3 speck of dust from the underside of the film with some adhesive tape. This works fine but I can hardly imagine that someone without this trick creates dust. Delivery and top: In addition to a manual is even a dust-free welded microfiber cloth (!). A star deduction, because I found a little confusing the enclosed instructions and it relates to mobile films, not to the accompanying SmartWatch films.