Screen Refresh Rate:

Displays of our devices are not static, they show new content in every new frame and hence need to be updated regularly to load the new content quickly.

The Screen Refresh rate of any display, be it on smartphone, TV, Laptops, etc. is nothing but a count of their content refreshing in one second. It means that the number of times the pixels of the display refreshes in each second. For example, 60 Hz means the display refreshes its content 60 times in 1 second.

Touch Sampling Rate

Touch Sampling Rate is a frequency of a screen to register a touch by the user. It means that how many numbers of times in a second the screen will look for touch input. It is also measured in Hz like 60Hz, 90Hz. For example, a Display with 180Hz Touch sampling rate searches for touch input 180 times per second.

Don't get confused by these terms, Both are very different and can have very different effects on the experience.