The strap type of the Redmi Watch 4 is quick detachable strap.
If you have interest in the replacement methods, please refer to the following details:
1. When remove the strap, please press the quick release buttons on both sides of the watch, and pull the strap outward to separate it from the main body of the watch;
2. When install the strap, please align the clasps on both ends of the watch strap with the grooves of the watch body, and forcefully snap them together to ensure that the strap is fully inserted, so that the quick release buttons are reset successfully. Before wearing, please pull the strap to make sure it is securely fastened.
Note:
The Redmi Watch 4 strap is universal with the strap of the Xiaomi Smart Band 8 Pro.