Buying guide
Stick Vacuums
Our pick
Shark Clean & Empty Cordless Stick Vacuum BU3521
Before you buy: The up-to-40-minute rating is measured at the hand vacuum in ECO mode; check that condition when planning your cleaning.2
The alternatives
Other contenders
Shark PowerDetect Cordless Stick Vacuum IP1251
Choose the IP1251 if reaching under furniture and folding the wand for compact storage matter more to you. Allow six hours for charging its included battery.3
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Models in this comparison
Every specification for these products
| Specification | Shark Clean & Empty Cordless Stick Vacuum BU3521 | Shark PowerDetect Cordless Stick Vacuum IP1251 |
|---|---|---|
| Cleaning arrangement | Converts to Handheld1 | MultiFLEX® technology allows you to bend the wand to clean under furniture, or fold it over for compact, flex storage.3 |
| Power and charging | Battery Power Source1 | Battery & Charging Cord3 |
| Suitable surfaces | Hardwood1 | 2X brushroll system for all floor types3 |
| Rated battery runtime | 40 min (Tested configuration: Up to 40 minutes in ECO mode, measured at the hand vacuum.)2 | 70 min (Tested configuration: Measured at the handvac in ECO mode; rated runtime, not floor-head runtime.)3 |
| Battery service | Not published | Battery Charge Time (hours): 6 Number Of Batteries Included: 13 |
| Included dock functions | Return the vac to its charging dock, where it automatically empties into the base.2 | Not published |
| Included cleaning tools | 8" Duster Crevice Tool Pet Multi Tool2 | 8" Duster Crevice Tool Pet Multi-Tool3 |
| Dock debris-container capacity | 1.3 L (Tested configuration: Supplied auto-empty dock container; this is not the hand vacuum dust cup.)2 | Not published |
| Cleaner weight | Not published | ≈3.68 kg (8.11 lbs)3 |
How they compare
Scroll the table to see every product and specification.
| Specification | Our pickShark Clean & Empty Cordless Stick Vacuum BU3521 | Shark PowerDetect Cordless Stick Vacuum IP1251 |
|---|---|---|
| Cleaning arrangement | Converts to Handheld1 | MultiFLEX® technology allows you to bend the wand to clean under furniture, or fold it over for compact, flex storage.3 |
| Power and charging | Battery Power Source1 | Battery & Charging Cord3 |
| Suitable surfaces | Hardwood1 | 2X brushroll system for all floor types3 |
| Rated battery runtime | 40 min (Tested configuration: Up to 40 minutes in ECO mode, measured at the hand vacuum.)2 | 70 min (Tested configuration: Measured at the handvac in ECO mode; rated runtime, not floor-head runtime.)3 |
| Battery service | Not published | Battery Charge Time (hours): 6 Number Of Batteries Included: 13 |
| Included dock functions | Return the vac to its charging dock, where it automatically empties into the base.2 | Not published |
| Included cleaning tools | 8" Duster Crevice Tool Pet Multi Tool2 | 8" Duster Crevice Tool Pet Multi-Tool3 |
| Dock debris-container capacity | 1.3 L (Tested configuration: Supplied auto-empty dock container; this is not the hand vacuum dust cup.)2 | Not published |
| Cleaner weight | Not published | ≈3.68 kg (8.11 lbs)3 |