This is not a charger for Galaxy S4 is a compatible charger for Galaxy S4 but viable for all other smartphone with this connector. The nuance is that the Samsung Galaxy S4 in need of a charger as the original 2A comes with. (This is the case for the Note 3, Note 2) Or even if it is an original product of Samsung is 0.7A but that the / the seller (s) hides (have) much more accurate in the description. Therefore, if you use your Galaxy S4 in GPS mode with this charger, the battery is still empty. (Lack of amperage requires) After maybe you down according to the seller on a real charger FOR Galaxy S4 (2A) But it's my fault, I made just to have it based on the title of the article (S4 = 2A for me but obviously not for everyone), I should find out about the amperage not disclosed by the seller, the result for the return procedure the return costs are my responsibility, as saying that for the price it is better to keep it and give it to someone not having a Galaxy S4 ...
In short it just enough to indicate amperage and I think we would likely not have done this. Regarding the seller (Master Accessory) I think he's forgotten the term "the customer is king" and yet I think being polite and dhonnête someone, exchange mail were very rude. From his point of view, to put it simply, it's my fault I should pay attention ... Also in the package received there a sheet clearly stating to put 5 stars on product comments or contact them before if there is a problem. No bowl, there is a problem and there will be no 5 stars.
Fortunately on the Amazon website I could find another product to its corresponding description.