This works well in my Galaxy S4. I use it for media storage. I did have to reseat it once as I kept getting an error about "Preparing SD Card," but I think that was more about how I put it in my phone than about this media. I think that this is a pretty good value to extend storage on a phone.UPDATE - I deducted a star because this card has a capacity of 32 billion bytes, but not 32 GB. There is a difference. The storage is actually around 29 GB because 32,000,000,000 / 1024 / 1024 / 1024 = 29.8 GB. It's still a very good value and I would still recommend it highly, but do understand that you are not getting 32 GB.