20mm Silicone Watch Strap replacement for Polar ignite/Unite/Pacer (and Withings ScanWatch 2 42mm/Steel HR 40mm/HR Sport)
Product description
If you want a simple way to refresh the look and feel of your fitness watch, a silicone replacement strap is usually the least stressful route. This 20mm silicone watch strap is made for a defined list of models, with an easy pin-style quick-swap approach and a buckle design that should help you get a snug fit.
That said, it’s one of those accessories where compatibility matters more than marketing. The listing also makes several “not for” exclusions, so it’s worth double-checking the exact watch you own before buying.
The essentials
This is a soft silicone sports strap designed as a replacement band. It’s positioned for everyday wear where comfort and practicality matter: lightweight feel, water-friendly use, and a strap material that’s unlikely to feel harsh during longer sessions.

On paper, the main selling points are straightforward: silicone comfort, a waterproof-friendly material approach, and a buckle that lets you adjust the fit. It also includes a quick spring/connector mechanism at both ends that’s intended to lock the strap sides to the watch properly.
Where it shines in daily use
Silicone straps tend to win when you sweat, wear the watch outdoors, or just want something that doesn’t fight you in the heat. With this band, the aluminium buckle and adjustable fit are practical details, especially if you like the strap a bit looser for daytime and tighter for workouts.
A good micro-example: after a run, you can rinse off sweat residue and leave the band to dry without worrying too much about the strap feeling “claggy” compared with some cloth options. The lightweight build is also helpful if you’re wearing it most of the day.



Compatibility notes (the part to check first)
Compatibility is the big limitation here. The strap is described as 20mm and compatible with:
- Polar ignite / Polar ignite 2 / Polar ignite 3 / Polar Unite / Polar Pacer
- Withings ScanWatch 2 42mm / Withings ScanWatch 42mm
- Withings Steel HR 40mm / Withings Steel HR Sport
But it’s explicitly not for several other variants, including Polar Pacer Pro, Withings ScanWatch 2 38mm, Withings 38mm, and Withings Steel HR 36mm. If your watch sits in one of those excluded sizes/models, this likely won’t match properly.

Installation and strap design
The strap uses quick spring straps at both ends, described with “Smooth Link technology”, where pins are pushed into the watch shaft and then locked on both sides. In practical terms, it’s meant to be an interchangeable band rather than something you fit once and forget.
Whether it’s genuinely friction-free for you depends on your watch’s connector tolerances, but the mechanism described is the same broad approach you’d expect from many quick-change silicone straps. If you’ve had issues with loose connections in the past, it’s worth paying attention to that locking step during fitting.
What matters most before you buy



Before you commit, check two things: the exact watch model and the 20mm fitment. The listing is clear about “NOT for” exclusions, so guessing is where these accessories go wrong.
It also helps to think about your intended use. Silicone tends to be ideal for sports, travel, and everyday comfort. If you’re after a dressier look or a more premium-feel finish, this type of strap may come across as more utilitarian than luxury.
Pros
- Silicone material designed for comfort and practical everyday wear
- Waterproof-friendly positioning for an active lifestyle
- Adjustable fit with an aluminium buckle
- Quick-swap connector approach intended to make swapping straps easier

Where it may not suit you
It might not be a great match if you own one of the excluded watch variants/sizes (for example certain ScanWatch 38mm or Steel HR 36mm models, or Polar Pacer Pro). Also, if you’re expecting premium strap materials or a more “dress watch” aesthetic, silicone sport bands can feel a bit more mid-range and functional.
Is it worth it?
Worth buying if you have one of the listed compatible watches and you’re after a comfortable, lightweight replacement band for day-to-day wear and workouts—especially if you want something water-friendly and easy to live with.



Better avoided if your exact watch model falls into the excluded list, because a mismatch here usually means you’ll waste time with returns rather than enjoy a proper fit. It’s also not the best choice if your priority is a more formal look or a strap material that feels less “sporty”.
Mini FAQ
Will this fit any Polar or Withings watch?
No. The listing is specific: it supports certain Polar and certain Withings sizes/models, and it explicitly excludes others, including Polar Pacer Pro and several Withings 38mm/36mm variants.
Is the strap adjustable?
Yes. The buckle design is described as allowing size adjustment so you can tighten and secure the band.
Is it suitable for wet conditions?
The silicone material is described as comfortable and waterproof, so it’s aimed at active use rather than careful, occasional wear.
How does the quick installation work?
It uses a spring/connector mechanism at both ends: pins are pushed into the watch shaft and both sides lock to the watch, then the other end is inserted.
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