20mm breathable silicone sport watch strap for Polar Ignite/Unite/Pacer (and Withings ScanWatch 2 42mm/Steel HR 40mm/HR Sport)

What it is and what problem it solves

This 20mm sport watch strap is a replacement band designed for specific smartwatches, including Polar ignite/ignite 2/ignite 3 (plus Polar Unite and Polar Pacer), and selected Withings models such as ScanWatch 2 42mm and Steel HR 40mm / HR Sport. If you’ve got a strap that’s looking tired, or you simply want a different look for training days versus everyday wear, a breathable silicone replacement like this can be a practical way to refresh things without replacing the watch.

The key angle here is fit and day-to-day comfort. It’s made from TPU silicone material (soft, lightweight), and the listing positions it as suitable for all-day use and workouts—running, cycling, climbing, hiking, camping, travel, and even office wear. That “sport first, still wearable” brief is exactly the sort of thing many people shop for when they’re trying to make one watch do more than one job.

Where it stands out in everyday use

On paper, the strap’s breathable, soft silicone-style feel is the main reason people choose this type of band. In real life, that usually translates to less fuss during workouts: fewer “sticky” moments than some harder materials, and a strap that’s comfortable enough to keep on beyond a session.

It also uses a new strap clasp design for a more secure locking fit. That matters because most strap-related annoyances—slipping, loosening, or the fear of the band coming off—tend to show up when you move around a lot. The listing specifically mentions preventing the watch from falling off if the strap becomes loose, which is a reassuring design intent.

A small but useful convenience point is installation: it’s described as easy and direct, with one-button removal. If you swap colours or bands depending on your outfit, that’s the sort of thing you’ll appreciate.

Fit and compatibility: what you must check first

This is not a universal strap, even though it covers multiple watches. You’ll want to double-check two compatibility points before buying:

• The strap width: it’s a 20mm replacement.
• The exact model: it’s stated as compatible with Polar ignite/ignite 2/ignite 3/Unite/Pacer (but NOT Polar Pacer Pro).

For Withings, the listing includes compatibility with ScanWatch 2 42mm / ScanWatch 42mm, Steel HR 40mm / Steel HR Sport, and it explicitly excludes some sizes—NOT for Withings ScanWatch 2 38mm or ScanWatch 38mm, and NOT for Withings Steel HR 36mm.

Because the exclusions are quite specific, it’s worth taking a minute to match your watch model and case size. It may seem like “just a band”, but with smartwatch straps, being off by a variant (like the smaller ScanWatch sizes) can be a dealbreaker.

What you’ll notice about the material and design

The strap is described as made of high-quality TPU, with dustproof and waterproof properties. That combination is aimed at people who get sweaty, do outdoor activities, or just don’t want to be careful every time the weather turns.

Design-wise, it’s positioned as a soft silicone strap replacement with a more secure locking clasp. There’s also a practical styling angle: the straps come in many rich and discreet colours, intended to look tidy and “advanced” on the wrist while still being sport-ready.

Still, it’s worth a grounded expectation: a silicone/TPU replacement band is unlikely to feel like a premium leather or metal bracelet. If you prioritise formal looks only, you may find this sits firmly in the casual/sport category.

Is it a good deal for your use case?

It’s a solid pick if you want a breathable TPU sport strap for regular training and everyday wear, and you’re specifically matching a compatible Polar or Withings model. The included “multiple occasions” framing—everything from running to travel to daily life—fits well with the typical needs of people who wear their watch constantly.

It may not suit you if you have one of the explicitly excluded models/sizes (for example, certain smaller Withings variants) or if you’re using the Polar Pacer Pro, since that’s not included. And if you’re expecting a strap that looks like a premium dress accessory, the silicone sport design may feel a bit too “workout-first”.

Quick FAQ

How easy is it to fit and remove?

The listing says it’s easy and direct to install, with one-button removal. If you’ve replaced watch bands before, it should be a straightforward job.

Is it waterproof?

It’s described as waterproof and dustproof. If your main use involves rain, sweat, or outdoor activity, that’s the kind of protection you’d typically look for.

Which watches is it compatible with?

It’s stated as compatible with specific Polar models (ignite/ignite 2/ignite 3/Unite/Pacer, not Pacer Pro) and specific Withings models (ScanWatch 2 42mm/ScanWatch 42mm/Steel HR 40mm/Steel HR Sport). Several smaller variants are excluded, so it’s important to match your exact model.

What’s the strap width?

This is a 20mm replacement band, so you’ll want to ensure your watch uses 20mm straps.

Final verdict

Should you buy it?

It makes sense if you need a breathable silicone/TPU sport replacement band in 20mm for a compatible Polar ignite/Unite/Pacer or Withings ScanWatch 2 42mm / Steel HR 40mm / HR Sport, and you want comfort and practical protection for everyday wear and training.

You may want to skip it if your watch model is one of the explicitly excluded sizes/variants, or if you’re buying mainly for a dressy, non-sport look. Also, if you’re not sure about the exact compatibility, don’t rush—getting the model and case size right is what determines whether this strap will actually fit and work as intended.