BYISYUE 20mm Silicone Replacement Band for Amazfit GTR Mini / GTR 42mm / GTS 4 / GTS 4 Mini and more
Product description
A practical replacement for everyday wear
If your current Amazfit strap has seen better days, a replacement band is often the easiest way to freshen up your watch without changing the watch itself. The BYISYUE silicone replacement band is a 20mm sport strap made for a range of Amazfit models listed by the brand, with a focus on comfort and day-to-day practicality.
On paper, it’s the sort of strap you buy when you want something that can keep up: lighter, softer on the wrist, and geared towards regular use (including training and outdoor activity). That said, it’s still a strap replacement—so the real question is whether the model compatibility matches your exact watch and whether 20mm is the correct fit for your current setup.
What it’s like to use
This band is made from TPU silicone. The manufacturer describes it as durable, dust-proof, waterproof, soft and lightweight. In real-world terms, that usually translates to a strap that feels comfortable for long stretches and is less precious than metal or leather alternatives when you’re out and about.
There’s also a “new band clasp design” mentioned in the description, aimed at locking more securely and helping prevent the watch dropping off if the strap is loose. If you’ve ever had a strap that feels like it doesn’t sit confidently, the clasp update is one of the more relevant details here—small design changes can matter more than people expect.
A simple example of where this makes sense: you’re out walking or commuting, your wrist gets warm, and you’d rather have a sweat-friendly band than something that feels stiff or absorbs grime. This kind of silicone/TPU strap is designed around exactly that kind of everyday routine.
Key features that matter day to day
The pitch is pretty clear: this is a silicone replacement band for active use and routine wear. Beyond the material, a few points stand out as genuinely useful.
- Compatibility is model-specific, and it explicitly notes it is not for Amazfit GTR 47mm, so double-check before buying.
- The strap is described as installation being easy and direct, with extraction using a single button.
- It comes in many colour options described as “rich and muted”, so you can match it to your outfit or mood.
Tech specs
- Type: Silicone replacement watch band
- Material: TPU (silicone-style)
- Width/fit: 20mm
- Water resistance claim: described as waterproof
- Dust resistance claim: described as dust-proof
- Compatibility note: not for Amazfit GTR 47mm
Where it shines (and where it may fall short)
This is a solid move if you want an uncomplicated, sport-leaning strap that prioritises comfort, durability, and practicality. If your current strap is stretched out, discoloured, or just not coping with regular training, a replacement like this is often the most straightforward fix.
But it’s not perfect for everyone. It may not suit you if you’re after a more premium look and feel, because silicone/TPU straps generally stay in the sport category rather than “dress watch” territory. Also, because the information provided is compatibility-by-model, you may need to be careful: if your watch isn’t one of the listed models (or if you accidentally have the 47mm GTR), this won’t be the right fit.
Worth noting too: while the description mentions waterproof and dust-proof, that doesn’t automatically mean it’s intended for every high-pressure scenario (like diving). If your use involves heavy-duty water exposure, it’s sensible to be cautious and rely on your watch’s own water guidance.
Who it’s for
It suits people who want a comfortable strap for everyday wear and active time—running, cycling, walking, camping, and similar outdoor routines. The colour variety also makes sense if you like switching things up for work versus weekends.
It might not be your best choice if you want a specific style of closure feel you already like on your original strap, or if you’re trying to fit a watch outside the stated compatibility list.
Included FAQ
Is this band suitable for training and outdoor activities?
The description positions it for training “all day” and regular use, with outdoor activities like running, cycling, hiking/camping and walking mentioned.
Is it waterproof?
The band is described as waterproof in the product information. If you’re doing anything extreme, it’s still worth checking your watch’s own water ratings.
Does it work with Amazfit GTR 47mm?
No—the description explicitly says it is not for Amazfit GTR 47mm.
What width is the strap?
It’s described as a 20mm sport watch strap.
Is it easy to swap over?
The description says installation is easy and direct, and removal uses a single button.
When it makes sense
Buy the BYISYUE 20mm silicone replacement band if you need a practical, comfortable strap for everyday use and active routines, and your Amazfit model is one of the ones listed (while avoiding Amazfit GTR 47mm). It’s especially worth considering if you want an easy colour refresh or a strap that can handle sweat and outdoor exposure better than more delicate materials.
Skip it if you’re not sure your watch matches the listed models, or if you need a dressier look and feel. When in doubt, confirm the exact model and whether 20mm is the correct width for your watch before ordering.