What are the strap and retail strap of the Redmi Watch 4 introductions?

If you have an interest in the strap and retail strap, please refer to the following information:
1. Obsidian Black and Silver gray straps are standard. The straps are TPU strap, with length about 135mm ~ 205mm;
2. Retail straps are Redmi Watch 4 Black, Redmi Watch 4 White, Redmi Watch TPU Quick Release Strap Blue, Redmi Watch TPU Quick Release Strap Green and Redmi Watch TPU Quick Release Strap Purple;
3. The straps will inevitably come into contact with dust during use, and the black strap is more obvious. There is a layer of specification sticker at the bottom of the charging base of the watch, which can effectively prevent dust accumulation. Please clean it in time if you find dust.