Out of the many Wallet cases for the Galaxy S4, I choose the Otterbox Commuter Wallet for several reasons.
I like how the wallet compartment is hidden from view; most people don't notice the extra hump in the back, especially when I am holding the phone. People that do notice, often think the case is an extended battery. The wallet slide takes breaking in, once broken in, the slide mechanism works flawlessly and locks security with a snap, letting you know your stuff is not going to fly out with a drop.
I like how the silicone hybrid rubber piece is exchangeable with the standard Commuter case. I bought the black Commuter Wallet case and plan to purchase a blue and green silicone piece to change the look up.
Lastly, the Commuter wallet offers the same great protection for your device as the regular Otterbox Commuter case. I have dropped my phone twice since owning this Wallet case, the case and my Galaxy S4 are perfect still..and the Wallet slide never opened and all my goods were secure.
Bottom line, if you want a Wallet case for your Galaxy S4 or iPhone 5, I recommended you buy the Otterbox Commuter Wallet, you will be very happy with your purchase.
Pros: High quality, Durable, wallet slide is secure and durable.