The 3. Ive Been Using This For About A Month And Am Pleased, It Charges My S10+ From 0% To 100% In 20-30 Minutes. its not even noticeable unless you are trying to sleep. This one hits perfectly at just a smidge below the waist to be very flattering (gives me the illusion of a smaller waist). This model fully justified its price. There?s no exaggerating it, I?ve tested it and drained it I highly recommend these and promise to update later say a month from now and see how they?re holding up, but construction is done nicely and although I don?t think it matters they take pride in your packaging, which gives you a feeling of a more luxurious product. They fit great and are very comfortable. Note: I live in a pet and shoe-free home, so I can?t speak to other environments. No ?fluff? comes off so it?s nice to use to remove painting mistakes or to apply paint with. Now onto comfort, the only area I have ever been able to fault certain AT models.