Amumu Electric Spin Scrubber 9-in-1 vs Scrub Master Electric Spin Scrubber

Both are cordless stand-up scrubbers that save your back on tubs, tile and grout. The Amumu is the stronger pick for most people: a 25W motor, five speeds, a 500 RPM top speed, nine heads and a 51-inch pole give it more reach and more power for stubborn soap scum and grout. The Scrub Master counters with a larger 2500 mAh battery and a slightly longer rated run time, so it suits long sessions across a big bathroom. Owners of the Amumu rate it highly, though the sample of 92 ratings is small; the Scrub Master has far less public feedback to go on.

• Choose the Amumu if you want the most power and reach, with five speeds, a 500 RPM top speed and a 51-inch handle for shower walls, tubs and floors without bending.
• Choose the Scrub Master if longer run time matters most and you want a bigger battery for covering a large bathroom in one charge.