Easy accessibility in your pocket and ultimate portability are a smartphone's main advantages over dedicated digital cameras. However, if you're the kind of mobile photographer who likes to use their device in combination with add-on lenses, powerbanks or other accessories, the pockets in your pants might not be roomy enough.

Help is at hand, though, in the shape of Cosyspeed's new Phoneslinger line of smartphone "camera" bags which you can now pre-order on Indiegogo. There are three bags in the new line, the Phoneslinger Power, Prime and Outdoor, which are all designed for different use cases and, in conjunction with a few accessories, form part of a modular bag system.

The Phoneslinger Power is a phone pouch that comes with a built-in 8000mAh powerbank that can charge your device via the QI wireless standard or a USB-cable. The Phoneslinger Prime comes close to a "real" camera bag, offering space for even the largest smartphones and four accessory lenses. You can also leave a lens attached to your device. The Phoneslinger Outdoor is a rugged phone pouch that protects your expensive device while hiking, climbing or any other activity that might put your phone at risk.

Accessories include the Flowbelt which comes with attachment points for the Phoneslinger bags and other items. The Stuffbag is designed to hold items such as sunglasses, passport, keys, etc. and comes with an included wallet. The Prime Pouch is a dedicated lens pouch, holding up to five smartphone accessory lenses.

A full Power kit, which includes the Phoneslinger Power, Stuffbag, Prime Pouch and the Flowbelt will set you back $149. For more information and full pricing for all items have a look at the Phoneslinger Indiegogo page.