What about iwatch caton

1. First, we can try to restart Apple Watch. We can press and hold the "side button" on the right side of the watch, as shown in the figure.

2. Then you will see the function options of the system. You can turn it off and press the button on the side to turn it on.

Method 2: Turn off some system animation effects.

1, please open the application of Apple Watch on the iPhone connected with Apple Watch, which can manage many watches.

2. Next, please find the "General" column in the "My Watch" column and enter the system function settings.

3. Then, in the general list, please click the "Accessibility" column, as shown in the figure.

4. In the accessibility, please turn on the options of "Reduce Dynamic Effect" and "Degree" respectively.

5. "Weakening dynamic effects" is actually turning off some animation effects on Apple Watch, such as the animation effect when exiting or opening the application.

6. "Degree" is mainly the effect of closing the system. Most notably, when viewing the notification, the background turns black.

7. Turning off this second effect in the system will not affect the normal use of Apple Watch, but it can greatly improve the speed of the watch. If you are not used to it, you can close them at any time.