Shark PowerDetect Cordless vs Shark PowerDetect Speed Cordless Vacuum

Both are Shark PowerDetect cordless sticks with the same 70-minute runtime, 380W motor, 21.6V battery, 10.19-inch cleaning width and HEPA filtration, so suction and floor coverage are effectively equal. The IP1251 is the standard stick with a 0.7 qt dust cup, a 5-year warranty and a lighter 8.2 lb body; the PowerDetect Speed adds a self-emptying dock, odor neutralization and a much smaller 0.19 gal bin. Owners praise the automatic suction adjustment and attachments on both, but some find the detect feature annoying and report power-button and dust-bin seal issues. Buy the IP1251 for simpler, lighter cleaning with a longer warranty; buy the Speed if you want to empty the bin less often via the dock.

• Choose the Shark PowerDetect IP1251 if you want the lighter stick with the bigger dust cup, a 5-year warranty and no dock to house.
• Choose the Shark PowerDetect Speed if you want a self-emptying dock, odor neutralization and hands-off bin emptying between cleans.