The difference between Shark IW3511 and IW3615 Detect Pro cordless stick vacuum cleaners with auto-empty system are:
The IW3511 comes with a Brass color straight wand whereas the IW3615 comes with a black flexible wand which is helpful for reaching under furniture;
the Iw3615 comes with a crevice tool and a pet multi tool which is a convertible tool for cleaning tough pet messes, you can use it with or without stiff bristle brush, whereas the IW3615 comes with a crevice tool and a PetExtract Tool which “extracts pet hair and ground-in dirt from upholstery, carpets, car mats, car seats, and more, while also actively removing hair wrap.”
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Similarities between them:
- Powered by Lithium-Ion battery.
- Removable battery, runs up to 60 minutes.
- Self empty charging dock for charging and self emptying.
- 2L base holds up to 30 days’ dust and debris.
- HEPA filter and anti allergen complete seal system to trap and capture over 99.9% of fine dust and allergens down to 0.3 microns.
- DirtDetect sensors detect dirt and automatically increase suction power to pick up the dirt.
- EdgeDetect sensors detect edges and 2x the suction for better edge cleaning.
- FloorDetect sensors detect carpet and hard floors and automatically adjust the rotating speeds to fit different cleaning needs.
- LightDetect sensors detect low light spots and automatically illuminate dark areas for thorough cleaning.
- LED display shows dirt detection, battery status and mode type.
- 3 modes: Eco, Auto and Boost modes.
- Push button power control, NOT trigger type control.
- Self-cleaning brushroll reduce hair wrap issues.
- Odor Neutralizer Technology on the self empty base guards against bad odors.
- QuadClean Multi-Surface brushroll tackles different cleaning jobs on both carpets and hard floors.
- Lighter than previous full size Shark cordless stick vacuum.