Are the stock Sony WF-1000XM5 eartips foam or silicone?

Sony ships polyurethane 'noise isolation' eartips, a foam-like material. That's why the XM5 seals so well out of the box, and also why the stock eartips wear out the way foam does: with daily use they compress, harden and stop sealing after a number of months.

My XM5 sound got thin and the ANC got worse. Are the earbuds broken?

Usually not. When foam-type eartips age they stop expanding fully, the seal opens and you lose exactly two things: bass and noise isolation. New eartips restore both. Try that before sending anything in for repair.

Sony only includes SS to L sizes. What if none fit?

You're not alone; ear canal sizes vary far more than four steps. Run through the sizes methodically (per ear), and if the best one still leaks or aches, a memory foam eartip in the nearest size adapts to the difference instead of forcing your ear to adapt.

Why don't manufacturers include foam ear tips in the box?

Because silicone lasts practically forever. A silicone ear tip can be used for 5 to 10 years, so manufacturers can bundle it once and forget about it. Memory foam adapts to your ear but wears out: with intensive daily use a set typically needs replacing after about three months, when the foam stops sealing properly. That is why foam ear tips are an upgrade you choose rather than a default in the box.

Sony WF-1000XM5 falling out? Worn ear tips and the fix

Good news first: if your Sony WF-1000XM5 used to sound massive and now sound thin, your earbuds are probably fine. Sony ships foam-style eartips in the box, and foam is a consumable: it seals brilliantly and then, after months of daily squeezing, it stops. Here's how to tell what's going on and what to do about it.

Why the XM5 fit changes over time

The XM5's stock polyurethane eartips behave like all foam: each insertion compresses the material, and thousands of compressions later it loses its slow-rebound bounce. A tired foam eartip doesn't expand back against your ear canal, so the seal opens. You notice it as three separate "faults": weaker bass, weaker noise cancelling and an earbud that works itself loose. One cause, three symptoms.

Silicone: gaps leak sound, ear tip slips

Memory foam: expands, seals, stays

The XM5 is also a relatively big, heavy earbud. Weight amplifies every bit of lost grip: what a light earbud forgives, the XM5 punishes.

Check these before buying anything

Look at the eartips. Compressed, shiny or cracked foam is spent foam. If they no longer spring back slowly after a squeeze, they're done.
Redo the size test. Sony's Headphones app has an air-tightness test under 'Determine optimal eartips'. Run it per ear.
Try the next size up. A slightly-too-big foam eartip usually beats a slightly-too-small one; it has more material to fill gaps with.
Keep them clean and dry. Wipe with a dry cloth after workouts; moisture ages foam faster.

Replacing them: what to look for

Any replacement must do two things: seal your ear canal and clear the XM5's charging case. Our memory foam eartips for the WF-1000XM5 are shaped for its wide nozzle, come in four sizes plus a mix pack (handy when your ears disagree with Sony's size chart), and each set arrives sealed for hygiene:

Foam Eartips for Sony WF-1000XM5 - Memory Foam Eartips - foamigo®from €14.95View ear tips

Fitting foam correctly matters more than with silicone:

1Old ear tips offGrip them low and pull; they come straight off.

2Click the foam onPress onto the nozzle until you hear the click.

3A little squeezePinch it a little between your fingers.

4In and expandThe foam grows back until it gently grips your ear.

How long should eartips last?

Rule of thumb for any foam eartip, Sony's included: about three months of intensive use, longer if you rotate pairs or use them a few days a week. When bass and isolation fade, swap them; it's the cheapest audio upgrade you can buy.

Everything that fits your earbuds is on the WF-1000XM5 fit page, and the fit finder covers every other model.

About foamigo

From selling earbuds to fixing them

We sold thousands of wireless earbuds and kept hearing the same thing: great sound, shame they slip out. So we made memory-foam ear tips that take the shape of your ear. Straight from Amsterdam.

Read our story

See every ear tip that fits the Sony WF-1000XM5