The Phone in a Box Dots from Marc by Marc Jacobs is a good way to carry around your smartphone without the extra bulk of a heavy purse.
It's compact, functional and gets right to the point. The clutch securely holds your cellular device, but doesn't allow for much more. The benefit is that you are not over stuffing your bag with items you are not going to need and will eventually end up getting buried in the fabric, and you are able to easily access your phone.
Made of black leather with gold hardware, the dot design on the clutch resembles a domino. Since the Phone in a Box Dots bag is essentially a phone case with an elegant long strap, the main goal is to protect your Smartphone while making it easily accessible, which is done with a pushlock closure.