Shark APEX Upright vs Shark Stratos Upright AZ3002

For the most part, the Shark Stratos Upright AZ3002 improves on the older Shark APEX Upright. The Stratos has a more effective self-cleaning brushroll, weighs fractionally less, and delivers slightly better performance on most surface types. While some users might view it as a gimmick, the Stratos also has an odor-neutralization system that masks unpleasant scents as you clean. On the other hand, the APEX has a higher-capacity dustbin, and the design of its grip makes it more comfortable to use in its handheld configuration.