A wearable pack assembly for a mobile device having a touchscreen and a camera. The wearable pack assembly includes a harness and a pack. The harness includes a base and a strap assembly configured to be worn by a wearer. The pack is removably coupled to the base and includes a windowed pocket and a door. The windowed pocket includes an inlet configured to receive the mobile device and a window configured to enable viewing and touching of the touchscreen and taking of pictures and video with the camera from the windowed pocket through the window. The door is movable between an open position away from the windowed pocket and a closed position partially covering the windowed pocket and leaving a portion of the window uncovered.