I bought the Sport Armband for jogging with my Samsung S5. It was important in particular that the phone without problems fit in and also still geügend accommodate a Wohnungsschlüsel is - and this armband case met all my expectations. Only slight drawback is that there is no recess for the headphone, but that's not so bad, because you can put the headset band between the zippers; so that it holds and also the zippers are held with a specially provided fixing Velcro tape. I am now running several times with the strap, it is easy to fix the arm and does not slip, no matter whether one is firmly fixed on the bare arm or on a dress bodice.
After the purchase you get to the product nor a 1 year guarantee - this is enabled by the online registration on the website.