COROS Watch Band Size Guide: PACE, APEX, VERTIX & NOMAD Compatibility

Choosing the correct COROS watch band size is essential because not every COROS watch uses the same strap width or attachment system.

Depending on the model, COROS watches currently use sizes ranging from 20 mm to 26 mm, with most modern models using quick-release or QuickFit-style attachment systems.

For example:

• COROS PACE 2 uses 20 mm bands.

• PACE 3, PACE 4 and PACE Pro use 22 mm bands.

• COROS NOMAD uses 24 mm bands.

• APEX 2 uses 20 mm bands.

• APEX 2 Pro uses 22 mm bands.

• APEX 4 42 mm uses 22 mm bands.

• APEX 4 46 mm uses 24 mm bands.

• VERTIX 2 and VERTIX 2S use 26 mm bands.

This guide explains the current COROS band sizes, compatibility between models and how to choose the correct replacement strap.

COROS Watch Band Size Chart

Here is the quickest way to identify your COROS band size.

The most important thing is to check both width and attachment style before buying.

What Size Band Does COROS PACE 2 Use?

The COROS PACE 2 uses a 20 mm band.

COROS confirms that the PACE 2 is compatible with selected third-party 20 mm quick-release bands.

This gives owners a broad range of possible replacement materials, including:

• silicone;

• nylon;

• leather;

• selected metal bands.

PACE 2 bands are also compatible with certain other COROS models using the same 20 mm standard.

What Size Band Does COROS PACE 3 Use?

The COROS PACE 3 uses a 22 mm band.

This is an important change from the PACE 2, which uses 20 mm.

That means:

PACE 2 bands do not automatically fit PACE 3.

PACE 3 supports 22 mm silicone and nylon bands using the quick-release format.

For buyers upgrading from an older PACE model, this is one of the most important compatibility differences.

What Size Band Does COROS PACE 4 Use?

The current COROS PACE 4 uses 22 mm bands.

COROS lists both:

• 22 mm silicone;

• 22 mm nylon;

as compatible options.

This puts PACE 4 in the same width family as PACE 3 and PACE Pro.

However, compatibility should still be confirmed before using any third-party band.

What Size Band Does COROS PACE Pro Use?

The COROS PACE Pro uses a 22 mm band.

It supports both silicone and nylon strap options.

Because 22 mm is a common watch-band width, owners may have more third-party options than with less common sizes.

Still, make sure the replacement strap uses the correct quick-release system.

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What Size Band Does COROS NOMAD Use?

The COROS NOMAD uses a 24 mm band.

COROS currently lists:

• standard 24 mm silicone bands;

• NOMAD-specific silicone bands;

• standard 24 mm nylon bands;

• NOMAD-specific nylon bands.

This makes NOMAD distinct from the PACE range, which currently centers around 22 mm on newer models.

If you own a NOMAD, do not assume a PACE 3 or PACE 4 strap will fit.

What Size Band Does COROS APEX 2 Use?

The COROS APEX 2 uses a 20 mm quick-release band.

That puts it in the same width category as the PACE 2.

COROS states that APEX 2 is compatible with selected third-party 20 mm quick-release straps.

This gives owners flexibility when choosing alternative materials.

What Size Band Does COROS APEX 2 Pro Use?

The COROS APEX 2 Pro uses a 22 mm band.

That makes it wider than the standard APEX 2.

COROS also notes compatibility between APEX 2 Pro bands and certain older 22 mm APEX models.

So the key distinction is:

APEX 2 = 20 mm

APEX 2 Pro = 22 mm

What Size Band Does COROS APEX 4 Use?

The APEX 4 family uses different sizes depending on case size.

APEX 4 42 mm

Uses a 22 mm band.

APEX 4 46 mm

Uses a 24 mm band.

This is exactly why buying by product family alone can cause mistakes.

An APEX 4 band is not simply “an APEX 4 band.”

You need to know which case size you own.

What Size Band Does COROS VERTIX Use?

The original COROS VERTIX uses a 22 mm band.

Unlike many PACE and APEX models, COROS identifies it as using a QuickFit-style attachment.

Selected third-party compatible straps may therefore work when they match both the width and attachment mechanism.

What Size Band Does COROS VERTIX 2 Use?

The COROS VERTIX 2 uses a 26 mm band.

The VERTIX 2S also uses 26 mm.

These are among the widest COROS watch bands.

COROS lists both:

• 26 mm silicone;

• 26 mm nylon;

for these models.

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Are COROS Watch Bands Interchangeable?

Sometimes.

But not automatically.

Two COROS watches can share the same width and still require you to verify the attachment system.

For example, many modern COROS watches use quick-release bands.

Others, such as VERTIX models, may use a QuickFit-style system.

The safest approach is to match:

1. exact model;

2. band width;

3. attachment system.

Do not buy based only on the number of millimeters.

Can PACE 2 Bands Fit APEX 2?

Both PACE 2 and APEX 2 use 20 mm quick-release bands.

COROS specifically notes compatibility between PACE 2 and APEX 2 band formats.

That makes this one of the easier cross-model combinations.

However, always verify the individual replacement strap before ordering.

Can PACE 3 Bands Fit PACE 4?

Both PACE 3 and PACE 4 currently use 22 mm bands.

They therefore belong to the same general width category.

But when buying a third-party replacement, check that the band is explicitly compatible with your model and attachment style.

Width alone is not a full guarantee.

Can PACE 3 Bands Fit PACE 2?

No, not directly.

PACE 2 uses 20 mm.

PACE 3 uses 22 mm.

The difference in width means a normal replacement strap for one should not be assumed to fit the other.

Can APEX 2 Bands Fit APEX 2 Pro?

Not normally.

APEX 2 uses 20 mm.

APEX 2 Pro uses 22 mm.

Again, the model names are similar, but the band widths are different.

Can APEX 4 42mm and 46mm Use the Same Band?

No.

APEX 4 42 mm uses 22 mm.

APEX 4 46 mm uses 24 mm.

The larger case requires the wider band.

Can VERTIX 2 Bands Fit VERTIX?

No assumption should be made.

VERTIX uses 22 mm.

VERTIX 2 uses 26 mm.

They therefore belong to different width categories.

COROS 20mm Watch Bands

COROS 20 mm bands are associated with models such as:

• PACE 2;

• APEX 42;

• APEX 2.

20 mm is a relatively common watch-band width.

That makes it easier to find third-party replacement options.

COROS 22mm Watch Bands

22 mm is now one of the most important COROS band sizes.

Current compatible models include:

• PACE 3;

• PACE 4;

• PACE Pro;

• PACE 4 Pro;

• APEX 46;

• APEX Pro;

• APEX 2 Pro;

• APEX 4 42 mm.

This makes 22 mm one of the broadest current COROS categories.

COROS 24mm Watch Bands

24 mm is used on newer larger models such as:

• COROS NOMAD;

• APEX 4 46 mm.

Because 24 mm is less common than 20 or 22 mm, compatibility checks become even more important.

COROS 26mm Watch Bands

COROS 26 mm bands are primarily associated with:

• VERTIX 2;

• VERTIX 2S.

These larger outdoor watches use wider straps to match their larger case design.

Quick Release vs QuickFit on COROS

COROS uses more than one attachment style.

Quick Release

Common on many:

• PACE;

• APEX;

• NOMAD;

models.

Quick Release uses a spring bar with a small lever.

QuickFit-Style Attachment

Found on selected VERTIX models.

This system clips onto existing watch hardware.

These systems should not be confused simply because they are both tool-free.

How to Remove a COROS Quick Release Band

For compatible models:

1. locate the small metal lever on the spring bar;

2. slide the lever inward;

3. release the band from the lug;

4. remove the strap.

To install a new band:

1. insert one side of the spring bar;

2. pull the lever inward;

3. align the other side;

4. release;

5. gently pull on the band to confirm it is secure.

COROS specifically recommends checking that the band is securely attached after installation.

How to Change a COROS VERTIX Band

VERTIX models use a different mechanism.

For compatible models:

1. locate the latch;

2. release the existing band;

3. remove it from the watch;

4. align the replacement;

5. press it into place.

Again, check security before wearing the watch.

Silicone vs Nylon COROS Bands

COROS officially offers both silicone and nylon across many current models.

Each material works better for different uses.

Silicone

Best for:

• swimming;

• gym training;

• high sweat;

• easy cleaning.

Nylon

Best for:

• running;

• everyday wear;

• lightweight comfort;

• long-duration activities.

Neither is universally better.

Best COROS Band for Running

For running, prioritize:

• low weight;

• secure fit;

• sweat management;

• comfort.

Nylon is often an excellent choice because it is lightweight and highly adjustable.

Silicone can also work well if you prefer a smoother, more water-resistant material.

Best COROS Band for Trail Running

For trail running, security becomes even more important.

Look for:

• a secure attachment;

• correct size;

• durable construction.

Make sure the replacement strap is fully locked before running.

Best COROS Band for Swimming

Silicone is usually the most practical material for swimming.

It absorbs very little water and is easy to rinse.

Nylon can also be used depending on the specific strap but may take longer to dry.

Best COROS Band for Everyday Wear

For everyday wear, comfort usually matters more than maximum water resistance.

Nylon can be particularly comfortable because it is:

• lightweight;

• flexible;

• breathable.

Silicone remains a practical all-round alternative.

Can You Use Third-Party Bands on COROS?

Many COROS models support selected third-party straps.

COROS explicitly states third-party compatibility for several quick-release models, including PACE and APEX watches.

However, the company also notes that compatibility may not always be tested for every third-party product.

Always verify:

• width;

• attachment;

• model compatibility;

• connector quality.

How to Measure a COROS Watch Band

In most cases, you should not need to manually measure your existing strap if you know your exact COROS model.

The official compatibility table provides the required width.

If needed, measure the distance between the watch lugs in millimeters.

Typical COROS values include:

• 20 mm;

• 22 mm;

• 24 mm;

• 26 mm.

COROS Band Compatibility Quick Reference

20mm

PACE 2
APEX 42
APEX 2

22mm

PACE 3
PACE 4
PACE Pro
PACE 4 Pro
APEX 46
APEX Pro
APEX 2 Pro
APEX 4 42mm
VERTIX 1

24mm

NOMAD
APEX 4 46mm

26mm

VERTIX 2
VERTIX 2S

This simple width grouping can help narrow your search immediately.

Common COROS Band Buying Mistakes

Buying by Brand Only

A “COROS band” is not enough information.

Buying by Series Only

APEX models use several different widths.

Assuming Newer Means Same Size

PACE 2 and PACE 3 use different widths.

Ignoring Attachment Style

Width alone does not define compatibility.

Buying Before Checking the Exact Model

Always identify the exact watch first.

How to Choose the Correct COROS Replacement Band

Use this order:

Step 1 — Identify Your Watch

Example:

PACE 3.

Step 2 — Check Width

PACE 3 = 22 mm.

Step 3 — Check Attachment

PACE 3 uses Quick Release.

Step 4 — Choose Material

Silicone for water and training.

Nylon for lightweight comfort.

Step 5 — Confirm Product Compatibility

Only then order the replacement band.

Frequently Asked Questions

What size band does COROS PACE 3 use?

PACE 3 uses 22 mm bands.

What size band does COROS PACE 2 use?

PACE 2 uses 20 mm bands.

What size band does COROS PACE 4 use?

PACE 4 uses 22 mm bands.

What size band does COROS NOMAD use?

COROS NOMAD uses 24 mm bands.

What size band does APEX 2 use?

APEX 2 uses 20 mm bands.

What size band does APEX 2 Pro use?

APEX 2 Pro uses 22 mm bands.

What size band does APEX 4 use?

APEX 4 42 mm uses 22 mm, while APEX 4 46 mm uses 24 mm.

What size band does VERTIX 2 use?

VERTIX 2 and VERTIX 2S use 26 mm bands.

Are COROS watch bands universal?

No. Band width and attachment style vary by model.

Can I use third-party COROS bands?

Many models support compatible third-party bands, but width and attachment style must match.

The Correct COROS Band Starts With Your Exact Watch Model

COROS currently uses several band sizes across its lineup.

The simplest way to avoid buying the wrong strap is to remember that the watch model determines everything.

A PACE 2 needs a different width from a PACE 3.

An APEX 2 differs from an APEX 2 Pro.

Even two APEX 4 case sizes use different straps.

Start with the exact model.

Then check width.

Then check the attachment mechanism.

Only after that should you choose between silicone, nylon or another material.

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