Bio Ionic 10X Ultralight Speed Hair Dryer with Adjustable Heat & Speed

Why it's worth it

The 10X Ultralight pairs a brushless motor with three heat and three speed settings, plus a memory function that saves your combination for next time. It weighs about a pound, so it's easy to keep moving — and keeping the nozzle moving is the habit that spares fine hair.

The memory function is smarter than it sounds. It saves your preferred heat and speed so you're not starting from scratch, or from the highest setting, every morning. Fine hair does best on one narrow combination, and this is the only pick here that remembers it for you. Set it once at medium heat and high speed and stop thinking about it.

It's light enough to keep in constant motion. At roughly a pound, it doesn't fight you through a long blowout. That's not a spec-sheet nicety — a heavy dryer makes your arm drop and hover, and hovering is what concentrates heat on one patch of fine hair until it turns brittle.

From our review of 5 hair dryers for fine hair, by Sarah Wright, Editorial Associate

What we like

• +The memory function is smarter than it sounds
• +It's light enough to keep in constant motion
• +Bio Ionic claims a full blowout in under ten minutes
• +The attachments cover the basics well

What to know

• –There's no diffuser
• –It's the least established name in this group
• –The memory feature cuts both ways