Amazon's first smartphone isn't that great, but the company is already moving to improve the experience with the device's first OTA update. This bumps the FireOS version up to 3.5.1, and includes a slew of new features and improvements:

The software version includes new and enhanced features:

  • Quick Switch

    With a double-press on the home button, Quick Switch allows you to easily alternate between or shut down running apps and tasks.

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