Michael Todd Beauty Sonic Refresher vs Spa Sciences MIO Diamond Microdermabrasion System

The Sonic Refresher is the only device here that gives you three diamond grits and a wet mode, and the only one with a three-year warranty. The MIO does the same two-step job with one grit and five speeds for a fraction of the price, and tells you exactly what to expect and when.

Michael Todd Beauty Sonic Refresher

Buy it

Three diamond grits, three extraction heads, a wet mode and a three-year warranty.

• Three microdermabrasion heads at different grades, a coarse diamond head, a fine diamond head and a small fine head for delicate areas, plus three pore extraction heads.
• Wet and dry sonic operation with a hydrating micromist step, so exfoliation, extraction and rehydration happen in one routine rather than three devices.
• A 3-year warranty, three times the cover on the MIO, with a wireless charging cradle and a USB cable in the box.

• Michael Todd publishes no speed count, no battery runtime, no weight and no dimensions.
• The world's first and patented claims appear with no patent number or date on the page.
• It is the most expensive device in this comparison.

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Spa Sciences MIO Diamond Microdermabrasion System

Buy it

Five speeds, a travel-legal battery and the clearest statement of what to expect and when.

• A laser-cut diamond rejuvenation tip plus three suction extraction tips in different shapes and sizes, with five speed settings to match the level of exfoliation to your skin.
• A USB rechargeable NiMH battery that is lithium-free and therefore permitted in carry-on or checked baggage, with a 60 minute maximum runtime and cord-free operation.
• Spa Sciences publishes what to expect: softer skin after the first session, and significant improvement in fine lines, hydration, pore size and tone after eight to twelve weeks of weekly treatments, along with twenty single-use filters, full cleaning instructions and a 1-year limited warranty.

• One diamond grit only, where the Sonic Refresher ships with three.
• A 1-year limited warranty, the shortest of the three microdermabrasion devices here.
• Spa Sciences warns that using anything other than a 5V 1A or 5V 2A charger can cause the unit to overheat, which is an unusual thing to have to remember.

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Side by side

The bottom line

Our overall pick is the Michael Todd Beauty Sonic Refresher - Three diamond grits, three extraction heads, a wet mode and a three-year warranty. Choose the Spa Sciences MIO Diamond Microdermabrasion System instead if a first microdermabrasion device, and anyone who travels and wants to take it along.

Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best At-Home Microdermabrasion Devices: 4 Compared (and One to Skip).