Shark Stratos Cordless Vacuum vs Shark PowerDetect Cordless

The PowerDetect is the stronger vacuum on paper and in owner feedback: it is lighter, runs longer, carries a 5-year warranty and adds edge and reverse-pass dirt detection. The Stratos is the older design and its 4.1 rating from a much larger pool of owners flags real complaints about weight and battery life. Buy the PowerDetect unless you want the Stratos's odor neutralizer or find its folding wand and proven track record enough.

• Choose the Shark Stratos if you want the odor neutralizer for pet debris and a design with a long, well-documented owner history.
• Choose the Shark PowerDetect if you want the lighter, longer-running vacuum with a 5-year warranty and dirt detection in both forward and reverse passes.