Smartphones are almost perfectly designed to disrupt sleep,

Con: Eternally at WorkThe downside to the productivity and communication tools that smartphones provide is that employees are always connected to their work. With work-specific apps, the ability to connect with co-workers and employees at all times, and the ability to transfer data, it's very easy for your work to swiftly dominate your life with a smartphone. Such exhausting constant contact can lead to low morale, poor productivity and malaise in your workforce.

Con: Distractions AboundThe smartphone's useful tools are contrasted by the bevy of endless ways you can mindlessly occupy time. Games, social networking applications, videos, and fully functional Web surfing are a few examples. The modern smartphone can easily consume your entire day if allowed and produce almost nothing of value for it. Employees can easily idle away an entire shift instead of focusing on the task at hand.