I have their shirts. Maybe there is a way to get them to stay on better but Ill have to work on that one. Kinda messes with the sensors too. And comfort is good. Only couple days i used it and i smelled burn something around phone charger. To be honest when I read the reviews I thought, maybe some didn?t know how to use anchors and so the reviews were only negative bc of that! Some people have written reviews complaining about the heel area of the shoe being ultra stiff and tearing into their Achilles. tried to register with Samsung using the serial on the charging case. However, Seaport only has two straps for the elastic shoelace, and does not adjust to the foot as well as Newport, which has three straps. What a great little product!