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The Sonic FX Solo is a rechargeable sonic toothbrush sold with 10 replacement brush heads, aimed at kids. The bundle is the draw: ten heads cover roughly two and a half years of use at the usual three-month swap. At $26.99 at Groupon.com as of November 6, 2026, it is the lowest new price among the two stores that carry it.
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Lowest price we've seen: $26.99 on Nov 6 at Groupon.com. Tracked across 1 store since Nov 6.
Ratings average 4.1 out of 5 across 3,100 ratings, which points to a mixed reception rather than a clear favorite. Buyers who like it tend to value the included heads and the low price.