Getting the right ear tip size for your Sony WF-1000XM6 seems simple, but it makes a huge difference. Wrong size = weak bass, bad ANC, and earbuds that feel like they're about to fall out. Right size = what you paid $330 for.
Use the app's test
The Sony Sound Connect app has a built-in fitting test. Run it. It'll tell you if each ear has a good seal or not. Takes 30 seconds and saves you a lot of guessing.
How to know if you're wrong
If they're too small:
- Bass sounds thin (like someone turned down the subwoofer)
- ANC feels weak—you hear more background noise than you should
- They feel loose, like they might wiggle out
If they're too big:
- Your ears hurt after 30 minutes
- You feel pressure, like your ears are stuffed
- They seem to push themselves out over time
Here's what most people don't realize
Your ears probably aren't the same size. Most people have slightly different ear canals on each side. There's nothing weird about using medium on one side and large on the other. Actually, it might be exactly what you need.
Try it. If one ear keeps failing the seal test while the other passes, go up or down a size on just that side.
When the included tips don't work
If you've tried S, M, and L and nothing feels right, foam tips might be the answer. Comply Foam or AirFoams Pro are the popular choices—they compress when you insert them, then expand to fit your exact ear shape. Costs about $20 and makes a bigger difference than most people expect.
The perfect fit test
If you're constantly adjusting your earbuds or thinking about whether they feel right, they don't fit right. With the correct tips, you should forget you're wearing them.
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How we researched this
Where this comes from: this answer draws on the product's published specifications and the reviews ShopSavvy collected for it, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen Mar 18, 2026.
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