BYISYUE 20mm Silicone sport strap for smartwatches
Product description
If you want a simple upgrade to your daily watch setup, a silicone sport replacement band is an easy way to refresh the look while keeping things practical. This BYISYUE strap is made for specific smartwatch models with a 20mm connection, so it can swap in for your existing band when you want a spare or a different colour. It is a straightforward choice for everyday wear and training days, using a material designed to feel comfortable against the skin and handle active routines. ⌚️
The essentials

The BYISYUE watch strap for Coros Apex 42mm and related models, plus Ticwatch E series options, is a purpose made replacement band with a 20mm width. It uses soft silicone style TPU material, which is positioned as durable and suitable for regular use. The strap is described as dust resistant and waterproof, so it suits training sessions where you might sweat and also fits general day to day wear.


A key practical benefit is the comfort and low fuss nature of the silicone sport design. The band is lightweight and smooth, helping it sit comfortably during movement, whether you are walking, cycling, or heading out for errands. It also includes a new band closure design, intended to provide a more secure lock so the watch is less likely to feel loose when the band is fitted. 😀

Colour choice matters too, and this product is offered in multiple rich and muted shades. That means you can match your smartwatch band to your outfit and routine without needing a full new device. If you are keeping a spare band for workouts or travel, having options can make it easier to rotate depending on the day.
What it’s like to use



This replacement strap is designed for people who want dependable handling and a comfortable feel rather than complicated setup steps. The installation is described as easy and direct, with removal using a one button operation. In day to day terms, that can be useful when you want to switch bands quickly at home or prepare your smartwatch for a specific plan like a run or a longer day out.
For active use, the silicone sport construction is positioned for training all day. It is soft and lightweight, so it is less likely to feel bulky during exercise, especially when you are moving for extended periods. The waterproof and dust resistant positioning helps cover common real world issues, such as light exposure during outdoor activities. 🏃

There is also an emphasis on security, thanks to the improved band closure design described by the manufacturer. That helps reduce the chance of the watch feeling unsecured when the strap is slightly loosened during daily activity. If you tend to adjust your watch a lot during the day, a secure closure can make a noticeable difference to comfort and confidence.


It is also a practical choice across family use, as the band is suitable for women, men, girls, and boys. That makes it easier to standardise a spare replacement, whether you are updating a band for school and leisure or using it for outdoor hobbies like camping and travel.

Tech specs
- Material: TPU silicone style material
- Strap width: 20mm
- Compatibility: Ticwatch E3, Ticwatch E, Ticwatch GTH
- Compatibility: Coros Pace 2, Coros Apex 2, Coros Apex 42mm
- Water resistance: waterproof
- Dust resistance: dust resistant

Who it suits
It makes sense if you own a compatible smartwatch from the listed ranges and you want a replacement sport band that is comfortable for regular wear. You will like it if you prefer a soft, lightweight silicone style strap for training, walking, cycling, and other outdoor activities. The multi colour options also suit people who like to coordinate their smartwatch with their outfits and mood, without changing devices.
It might not be a great match if your smartwatch model is not listed for the 20mm strap compatibility. Also, if you need a different strap width, you would need to check sizing first before buying, as this one is specified as 20mm. Overall, it is a value focused way to keep your watch usable and visually fresh across everyday plans. ✅
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