Paul Mitchell Smooth+ Flat Iron
The “Smooth+” is praised for its 1.25-inch ceramic plates, quick heat-up and smart temperature control that adapts to hair thickness. Reviewers note it stays reliable for months with no overheating incidents, making it a long-term investment.
Consolidated from 3 independent outlets
Where the cited sources landed, as we read them
- 1 positive source
1 of 9 research runs entered this as a product to avoid rather than a pick.
Lower price point comes with thinner plates and less heat stability over time.
Flagged 26 July 2026
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Pros & cons
- ✓ Quick heat-up
- ✓ Smart temperature control
- ✓ Long-term reliability
- ✓ Goldilocks heat setting suitable for every hair type
- ✓ Best in Wired’s buying-guide
The sources behind this ranking
We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found. 1 outlet wouldn't let us check its link. We quote no words from these sources, so each row shows only where we placed it.
Evidence 2 articles and 1 community source
1 positive source
2 stance not read sources
Frequently asked questions
It ranks #2 of 13 on our hair straighteners tier list, in S tier. That placement draws on 3 independent outlets.
Ranked nearby in Hair Straighteners
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A tier #3 GHD Platinum+ Styler
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F tier #13 5 of 9 research runs entered this as a product to avoid rather than a pick.